EmbLogic » vim https://www.emblogic.com/blog Embedded System and ARM Training Tue, 03 Mar 2020 13:00:06 +0000 en-US hourly 1 http://wordpress.org/?v=3.9.1 Different methods of swapping 2 numbers https://www.emblogic.com/blog/09/different-methods-of-swapping-2-numbers/ https://www.emblogic.com/blog/09/different-methods-of-swapping-2-numbers/#comments Tue, 20 Sep 2016 15:10:38 +0000 http://www.emblogic.com/blog/?p=13684 Continue reading →]]> #include<stdio.h>
void swap(int *,int *);

int main()
{
int temp;
int *t;
int a=100,b=200;
//Using 3 variables
//1.1
temp = a;
a = b;
b = temp;
printf(“%d %d\n”,a,b);
//1.2
swap(&a,&b);
printf(“%d %d\n”,a,b);

//Using 2 variables
//2.1
a += b;
b = a-b;
a = a-b;
printf(“%d %d\n”,a,b);
//2.2
if(a!=0 && b!=0)
{
a *= b;
b = a/b;
a = a/b;
printf(“%d %d\n”,a,b);
}
//2.3
a = a^b;
b = a^b;
a = a^b;
printf(“%d %d\n”,a,b);
//Using 2 variables in single step
//3.1
a = b+a-(b=a);
printf(“%d %d\n”,a,b);
//3.2
a = b*a/(b=a);
printf(“%d %d\n”,a,b);
//3.3
a ^=b^=a^=b;
printf(“%d %d\n”,a,b);
return 0;
}
void swap(int *x,int *y)
{
int tmp;
tmp = *x;
*x = *y;
*y = tmp;
}

]]> https://www.emblogic.com/blog/09/different-methods-of-swapping-2-numbers/feed/ 0 Errors in “Hello World” program https://www.emblogic.com/blog/09/errors-in-hello-world-program/ https://www.emblogic.com/blog/09/errors-in-hello-world-program/#comments Mon, 19 Sep 2016 17:31:16 +0000 http://www.emblogic.com/blog/?p=13682 Continue reading →]]> #include<stdio.h>
int main()
{
printf(“Hello World”);
return 0;
}
/* Errors
Line 1 :-
*1. If u remove only preprocessor (#)->error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘<’ token
*2.#nclude<stdio.h> ->  error: invalid preprocessing directive #nclude
*3. #include -> error: #include expects “FILENAME” or <FILENAME>
*4,5 #include<  -> error: missing terminating > character
#include<>    error: empty filename in #include
#include<stdio.h  -> 4th error
*6. #include<stdio> -> fatal error: stdio: No such file or directory

Line 2 :-
*7. int main(  -> error: expected declaration specifiers or ‘…’ before ‘{’ token
*8. int main   -> error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘{’ token
*9. in main()  -> error: unknown type name ‘in’
*10. int main(*) -> error: expected declaration specifiers or ‘…’ before ‘*’ token
*11. int main(‘) ->  error: missing terminating ‘ character
*12. If no main() -> error: expected identifier or ‘(’ before ‘{’ token

Line 3 :-
*13. if no {  -> error: expected declaration specifiers before ‘printf’
error: expected declaration specifiers before ‘return’
error: expected declaration specifiers before ‘}’ token
*14. ..{  -> error: expected ‘{’ at end of input
*15. {..  -> error: expected expression before ‘.’ token

Line 4 :-
*16. printf(“Hello World”). -> error: expected identifier before ‘return’
*17. printf(“Hello World”) -> error: expected ; before ‘return’
*18. printf(“Hello World”) -> error: expected ‘)’ before ‘;’ token
error: expected ‘;’ before ‘}’ token
*19. print(“Hello World”)  -> undefined reference to `print’
*20. print(Hello World)  -> error: ‘Hello’ undeclared (first use in this function)
*21. print(“Hello World)  -> warning: missing terminating ” character [enabled by default]
error: missing terminating ” character
error: expected expression before ‘return’
error: expected ‘;’ before ‘}’ token
Line 5 :-
*22. return c; -> error: ‘c’ undeclared (first use in this function)
Line 6 :-
*23. missing } -> error: expected declaration or statement at end of inpu

*/

/* Warnings

w1. If u remove header -> warning: incompatible implicit declaration of built-in function ‘printf’
*w2. #include<stdio.h> -> warning: extra tokens at end of #include directive [enabled by default]
*w3. return NULL       -> warning: return makes integer from pointer without a cast

*/ Special Case :-
/* ; -> You can freely put ; or ;; anywhere in main (before fn., after fn., blank line etc.)
*      Except you can’t put ; after main();
*      ;int main() -> Valid
*      {; ->         Valid
*      }; ->         Valid
*      printf(“Hello World”);; -> Valid
*    Shows warning if used after #include<stdio.h>;
*/

]]> https://www.emblogic.com/blog/09/errors-in-hello-world-program/feed/ 0 Bubble sorting using function https://www.emblogic.com/blog/01/bubble-sorting-using-function/ https://www.emblogic.com/blog/01/bubble-sorting-using-function/#comments Sat, 23 Jan 2016 06:00:50 +0000 http://www.emblogic.com/blog/?p=13184 Continue reading →]]> #include<stdio.h>
//Program for Bubble Sorting
int * bubblesort(int*,int);
int display(int *,int);
int main()
{
int i,j,a[100],N,temp;

printf(“Enter no.of elements you want to sort:\t”);
scanf(“%d”,&N);//Max. no. of elements
printf(“Enter %d elements you want to sort:\n”,N);
for(i=0;i<N;i++)
scanf(“%d”,(a+i));
printf(“\nBefore sorting:\t”);
display(a,N);
//Sorting Starts
bubblesort(a,N);
//Sorting Ends
printf(“\nAfter sorting:\t”);
display(a,N);
}

int * bubblesort(int *a,int N)
{
int i,j,temp;
for(i=0;i<N-1;i++)
for(j=0;j<N-i-1;j++)
if(a[j]>a[j+1])
{
temp = a[j];
a[j]=a[j+1];
a[j+1]=temp;
}
return a;

}
int display(int* a,int N)
{
int i;
for(i=0;i<N;i++)
printf(“%d\t”,*(a+i));

return 0;
}

]]> https://www.emblogic.com/blog/01/bubble-sorting-using-function/feed/ 0 Basic linklist operations https://www.emblogic.com/blog/01/basic-linklist-operations/ https://www.emblogic.com/blog/01/basic-linklist-operations/#comments Sat, 16 Jan 2016 07:07:03 +0000 http://www.emblogic.com/blog/?p=13182 Continue reading →]]> RCS file: header.h,v
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]]> https://www.emblogic.com/blog/01/basic-linklist-operations/feed/ 0 Multiple Data Compressions And Encription Using Iterative Technique https://www.emblogic.com/blog/01/multiple-data-compressions-and-encription-using-iterative-technique/ https://www.emblogic.com/blog/01/multiple-data-compressions-and-encription-using-iterative-technique/#comments Thu, 14 Jan 2016 18:15:45 +0000 http://www.emblogic.com/blog/?p=13155 Continue reading →]]> Logfile of compleated Project

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description:
It includes basic headers which are used in project.
It includes stdio.h, fcntl.h, unistd.h, string.h, stdlib.h
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revision 1.1    locked by: root;
date: 2016/01/03 12:49:49;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: prototypes.h,v
Working file: prototypes.h
head: 1.10
branch:
locks: strict
root: 1.10
access list:
symbolic names:
keyword substitution: kv
total revisions: 10;    selected revisions: 10
description:
It contains the prototypes of functions which are defined and used in project.
It include prototype of openfile(), creatmasterarray(), findcodelength(), writema() functions.
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revision 1.10    locked by: root;
date: 2016/01/03 20:47:30;  author: root;  state: Exp;  lines: +0 -1
The prototype of findchar() is moved to compression.h
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revision 1.9
date: 2016/01/03 18:55:55;  author: root;  state: Exp;  lines: +0 -7
The prototypes of functions which are used oly in compression are removed.
They are added in a seperate file compression.h
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revision 1.8
date: 2016/01/03 17:35:16;  author: root;  state: Exp;  lines: +2 -2
*** empty log message ***
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revision 1.7
date: 2016/01/03 15:59:03;  author: root;  state: Exp;  lines: +1 -1
Name of function changes from index to findindex()
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revision 1.6
date: 2016/01/03 15:57:23;  author: root;  state: Exp;  lines: +2 -0
The prototype of findindex() is added.
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revision 1.5
date: 2016/01/03 14:52:44;  author: root;  state: Exp;  lines: +2 -2
the Prototype of compression() and compress4() is changed.
The return type changes from char to unsigned char.
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revision 1.4
date: 2016/01/03 14:11:16;  author: root;  state: Exp;  lines: +7 -7
Prototype of compression() and compress4() has been changed.
There 1st argument changes from char * to int .
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revision 1.3
date: 2016/01/03 14:00:58;  author: root;  state: Exp;  lines: +7 -0
Prototype of compresss4() has been included.
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revision 1.2
date: 2016/01/03 13:39:18;  author: root;  state: Exp;  lines: +1 -0
The prototype of function compression has been included.
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revision 1.1
date: 2016/01/03 12:51:08;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: compress2.c,v
Working file: compress2.c
head: 1.7
branch:
locks: strict
root: 1.7
access list:
symbolic names:
keyword substitution: kv
total revisions: 7;    selected revisions: 7
description:
compress2() function is created.
1 byte has 4 characters.
4 characters are read in one loop.
Loop breaking statement is added.
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revision 1.7    locked by: root;
date: 2016/01/04 08:27:15;  author: root;  state: Exp;  lines: +1 -1
loop is running from 0 to 3 instead of 1 to 4.
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revision 1.6
date: 2016/01/04 08:20:22;  author: root;  state: Exp;  lines: +3 -2
*** empty log message ***
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revision 1.5
date: 2016/01/04 08:16:10;  author: root;  state: Exp;  lines: +2 -2
Change in finding byte
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revision 1.4
date: 2016/01/04 08:05:17;  author: root;  state: Exp;  lines: +1 -0
Print statement for writing byte is added.
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revision 1.3
date: 2016/01/04 08:03:18;  author: root;  state: Exp;  lines: +1 -1
2nd argument of write instruction is corrected.
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revision 1.2
date: 2016/01/04 08:02:43;  author: root;  state: Exp;  lines: +1 -1
ce
—————————-
revision 1.1
date: 2016/01/04 07:59:09;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: compress3.c,v
Working file: compress3.c
head: 1.18
branch:
locks: strict
root: 1.18
access list:
symbolic names:
keyword substitution: kv
total revisions: 18;    selected revisions: 18
description:
compress3() function is defined here.
It writes 8 characters in 3 bytes.
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revision 1.18    locked by: root;
date: 2016/01/04 07:26:53;  author: root;  state: Exp;  lines: +1 -1
*** empty log message ***
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revision 1.17
date: 2016/01/04 07:25:15;  author: root;  state: Exp;  lines: +3 -3
compilation errors removed.
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revision 1.16
date: 2016/01/04 07:24:08;  author: root;  state: Exp;  lines: +7 -8
Few useless statements were removed.
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revision 1.15
date: 2016/01/04 07:04:27;  author: root;  state: Exp;  lines: +1 -1
Problem of a character is solved.
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revision 1.14
date: 2016/01/04 07:00:38;  author: root;  state: Exp;  lines: +3 -3
Finding problem in byte 2
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revision 1.13
date: 2016/01/04 06:54:02;  author: root;  state: Exp;  lines: +1 -1
*** empty log message ***
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revision 1.12
date: 2016/01/04 06:47:36;  author: root;  state: Exp;  lines: +3 -1
Condition for EOF is correcting.
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revision 1.11
date: 2016/01/04 06:08:48;  author: root;  state: Exp;  lines: +3 -3
Eof
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revision 1.10
date: 2016/01/04 05:54:52;  author: root;  state: Exp;  lines: +3 -3
The EOF is changed.
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revision 1.9
date: 2016/01/04 05:52:12;  author: root;  state: Exp;  lines: +3 -3
Solving problem in 3rd byte.
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revision 1.8
date: 2016/01/04 05:50:02;  author: root;  state: Exp;  lines: +3 -1
Finding problem in compress3()
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revision 1.7
date: 2016/01/04 05:02:45;  author: root;  state: Exp;  lines: +1 -1
No. of characters written is callculated.
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revision 1.6
date: 2016/01/04 04:56:27;  author: root;  state: Exp;  lines: +1 -1
Break condition changed.
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revision 1.5
date: 2016/01/04 04:53:28;  author: root;  state: Exp;  lines: +1 -1
*** empty log message ***
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revision 1.4
date: 2016/01/04 04:52:19;  author: root;  state: Exp;  lines: +1 -1
The print statement is changed.
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revision 1.3
date: 2016/01/04 04:40:34;  author: root;  state: Exp;  lines: +1 -1
*** empty log message ***
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revision 1.2
date: 2016/01/04 04:37:37;  author: root;  state: Exp;  lines: +5 -7
compilation error removed.
No. of characters written at a time corrected.
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revision 1.1
date: 2016/01/04 04:32:23;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: compress4.c,v
Working file: compress4.c
head: 1.45
branch:
locks: strict
root: 1.45
access list:
symbolic names:
keyword substitution: kv
total revisions: 45;    selected revisions: 45
description:
Only Prototype of compress4() is written
And file name is printed.
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revision 1.45    locked by: root;
date: 2016/01/03 21:09:17;  author: root;  state: Exp;  lines: +3 -2
It changes return type from char * to int
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revision 1.44
date: 2016/01/03 20:54:52;  author: root;  state: Exp;  lines: +3 -5
Useless variable is removed.
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revision 1.43
date: 2016/01/03 20:48:37;  author: root;  state: Exp;  lines: +4 -4
The data type of index is changed.
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revision 1.42
date: 2016/01/03 20:40:30;  author: root;  state: Exp;  lines: +1 -1
*** empty log message ***
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revision 1.41
date: 2016/01/03 20:39:53;  author: root;  state: Exp;  lines: +1 -1
*** empty log message ***
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revision 1.40
date: 2016/01/03 20:38:12;  author: root;  state: Exp;  lines: +3 -2
Problem of EOF is solved.
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revision 1.39
date: 2016/01/03 20:36:04;  author: root;  state: Exp;  lines: +1 -1
*** empty log message ***
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revision 1.38
date: 2016/01/03 20:17:44;  author: root;  state: Exp;  lines: +4 -0
Condition for writing End Of File Character.
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revision 1.37
date: 2016/01/03 18:51:56;  author: root;  state: Exp;  lines: +1 -0
*** empty log message ***
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revision 1.36
date: 2016/01/03 17:43:49;  author: root;  state: Exp;  lines: +1 -1
compilation error
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revision 1.35
date: 2016/01/03 17:41:03;  author: root;  state: Exp;  lines: +2 -2
Compressed array is written to compressed file.
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revision 1.34
date: 2016/01/03 17:37:35;  author: root;  state: Exp;  lines: +1 -1
Print statement removed.
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revision 1.33
date: 2016/01/03 17:02:42;  author: root;  state: Exp;  lines: +1 -1
One more argument for writing file descriptor is added.
It is of type int.
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revision 1.32
date: 2016/01/03 16:56:23;  author: root;  state: Exp;  lines: +2 -2
Print statements chanded.
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revision 1.31
date: 2016/01/03 16:55:26;  author: root;  state: Exp;  lines: +4 -2
*** empty log message ***
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revision 1.30
date: 2016/01/03 16:52:37;  author: root;  state: Exp;  lines: +0 -2
*** empty log message ***
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revision 1.29
date: 2016/01/03 16:49:42;  author: root;  state: Exp;  lines: +1 -1
hexa code of compressed charater is printed.
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revision 1.28
date: 2016/01/03 16:47:12;  author: root;  state: Exp;  lines: +4 -3
ANDing is used in place of ORing
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revision 1.27
date: 2016/01/03 16:43:28;  author: root;  state: Exp;  lines: +1 -1
*** empty log message ***
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revision 1.26
date: 2016/01/03 16:40:19;  author: root;  state: Exp;  lines: +1 -1
print statement removed.
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revision 1.25
date: 2016/01/03 16:37:45;  author: root;  state: Exp;  lines: +1 -1
unsigned char is used instead of char
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revision 1.24
date: 2016/01/03 16:36:26;  author: root;  state: Exp;  lines: +5 -5
Typecasting is used instead of sprints.
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revision 1.23
date: 2016/01/03 16:19:41;  author: root;  state: Exp;  lines: +1 -1
Printing statement change
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revision 1.22
date: 2016/01/03 16:18:17;  author: root;  state: Exp;  lines: +1 -1
argument of sprintf() is corrected.
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revision 1.21
date: 2016/01/03 16:17:34;  author: root;  state: Exp;  lines: +1 -1
*** empty log message ***
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revision 1.20
date: 2016/01/03 16:16:27;  author: root;  state: Exp;  lines: +2 -2
character array is used as argument for sprintf instead of char.
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revision 1.19
date: 2016/01/03 16:13:24;  author: root;  state: Exp;  lines: +1 -1
argument of sprintf() is corrected.
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revision 1.18
date: 2016/01/03 16:12:35;  author: root;  state: Exp;  lines: +2 -2
sprintf() is used instead of typecasting.
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revision 1.17
date: 2016/01/03 16:10:56;  author: root;  state: Exp;  lines: +5 -3
typecasting
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revision 1.16
date: 2016/01/03 16:07:46;  author: root;  state: Exp;  lines: +1 -1
typecasting is done.
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revision 1.15
date: 2016/01/03 16:06:16;  author: root;  state: Exp;  lines: +3 -2
index are printed.
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revision 1.14
date: 2016/01/03 15:59:51;  author: root;  state: Exp;  lines: +1 -1
Compilation error resolved.
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revision 1.13
date: 2016/01/03 15:55:02;  author: root;  state: Exp;  lines: +7 -4
Index of character is used instead of character to be written in file.
findindex() function is used for finding index of a character.
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revision 1.12
date: 2016/01/03 15:39:08;  author: root;  state: Exp;  lines: +2 -1
Testing the result
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revision 1.11
date: 2016/01/03 15:34:30;  author: root;  state: Exp;  lines: +1 -1
test statement removed.
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revision 1.10
date: 2016/01/03 15:33:47;  author: root;  state: Exp;  lines: +6 -5
The compressed characters are printed.
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revision 1.9
date: 2016/01/03 15:28:09;  author: root;  state: Exp;  lines: +1 -1
compilation error resolved.
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revision 1.8
date: 2016/01/03 15:24:23;  author: root;  state: Exp;  lines: +5 -2
lseek is used to change the ointer from end to starting.
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revision 1.7
date: 2016/01/03 15:21:52;  author: root;  state: Exp;  lines: +3 -0
Finding the problem
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revision 1.6
date: 2016/01/03 15:17:54;  author: root;  state: Exp;  lines: +1 -0
Read character is printed.
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revision 1.5
date: 2016/01/03 14:59:05;  author: root;  state: Exp;  lines: +2 -2
Compilation Errors.
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revision 1.4
date: 2016/01/03 14:55:14;  author: root;  state: Exp;  lines: +2 -2
Compilation error due to ; has been resolved.
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revision 1.3
date: 2016/01/03 14:50:11;  author: root;  state: Exp;  lines: +60 -2
Compression is done using bitshift operators -left shift and right shift.
2 characters are ORing into 1 and written to compressed array.
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revision 1.2
date: 2016/01/03 14:08:20;  author: root;  state: Exp;  lines: +3 -1
1st argument of compress4() has been change from char * to int type.
Now it will accept the fd of opened file i.i textfile.
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revision 1.1
date: 2016/01/03 14:00:13;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: compress5.c,v
Working file: compress5.c
head: 1.20
branch:
locks: strict
root: 1.20
access list:
symbolic names:
keyword substitution: kv
total revisions: 20;    selected revisions: 20
description:
compress5() dunction is defined.
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revision 1.20    locked by: root;
date: 2016/01/04 00:09:36;  author: root;  state: Exp;  lines: +1 -1
Printing changes
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revision 1.19
date: 2016/01/04 00:08:26;  author: root;  state: Exp;  lines: +7 -5
test is removed.
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revision 1.18
date: 2016/01/04 00:06:28;  author: root;  state: Exp;  lines: +1 -1
Unneccesort print statement removed.
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revision 1.17
date: 2016/01/04 00:04:31;  author: root;  state: Exp;  lines: +1 -2
No. of written character sis counted.
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revision 1.16
date: 2016/01/04 00:00:02;  author: root;  state: Exp;  lines: +31 -11
All the characters are written in file.
The ch=255 is written as EOF character.
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revision 1.15
date: 2016/01/03 23:47:52;  author: root;  state: Exp;  lines: +3 -3
ce
—————————-
revision 1.14
date: 2016/01/03 23:45:12;  author: root;  state: Exp;  lines: +1 -1
ce
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revision 1.13
date: 2016/01/03 23:42:38;  author: root;  state: Exp;  lines: +35 -2
5 bytes are written for 8 characters.
1 byte is written for 1 character.
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revision 1.12
date: 2016/01/03 22:54:23;  author: root;  state: Exp;  lines: +4 -2
*** empty log message ***
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revision 1.11
date: 2016/01/03 22:53:10;  author: root;  state: Exp;  lines: +3 -0
*** empty log message ***
—————————-
revision 1.10
date: 2016/01/03 22:51:42;  author: root;  state: Exp;  lines: +1 -1
*** empty log message ***
—————————-
revision 1.9
date: 2016/01/03 22:50:34;  author: root;  state: Exp;  lines: +1 -1
*** empty log message ***
—————————-
revision 1.8
date: 2016/01/03 22:48:58;  author: root;  state: Exp;  lines: +2 -0
break statement added.
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revision 1.7
date: 2016/01/03 22:47:34;  author: root;  state: Exp;  lines: +2 -1
*** empty log message ***
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revision 1.6
date: 2016/01/03 22:45:51;  author: root;  state: Exp;  lines: +1 -1
*** empty log message ***
—————————-
revision 1.5
date: 2016/01/03 22:45:01;  author: root;  state: Exp;  lines: +1 -1
compilation error resolved.
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revision 1.4
date: 2016/01/03 22:43:56;  author: root;  state: Exp;  lines: +1 -0
Read character is printed.
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revision 1.3
date: 2016/01/03 22:42:57;  author: root;  state: Exp;  lines: +65 -66
Formatting of program is done
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revision 1.2
date: 2016/01/03 22:38:18;  author: root;  state: Exp;  lines: +45 -56
characters of textfile are read 1 by 1
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revision 1.1
date: 2016/01/03 22:18:57;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: compress6.c,v
Working file: compress6.c
head: 1.6
branch:
locks: strict
root: 1.6
access list:
symbolic names:
keyword substitution: kv
total revisions: 6;    selected revisions: 6
description:
compress6() is defined here.
3 bytes contain 4 characters.
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revision 1.6    locked by: root;
date: 2016/01/04 09:56:51;  author: root;  state: Exp;  lines: +1 -0
*** empty log message ***
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revision 1.5
date: 2016/01/04 09:52:59;  author: root;  state: Exp;  lines: +1 -1
Print statements modified.
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revision 1.4
date: 2016/01/04 09:51:46;  author: root;  state: Exp;  lines: +2 -2
Change in print statements.
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revision 1.3
date: 2016/01/04 09:47:19;  author: root;  state: Exp;  lines: +1 -1
No. of times characters read at a time dec.
for this no. of times loop run dec.
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revision 1.2
date: 2016/01/04 09:44:50;  author: root;  state: Exp;  lines: +1 -1
ce in printf resolved.
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revision 1.1
date: 2016/01/04 09:43:08;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: compress7.c,v
Working file: compress7.c
head: 1.3
branch:
locks: strict
root: 1.3
access list:
symbolic names:
keyword substitution: kv
total revisions: 3;    selected revisions: 3
description:
compress7() is defined.
7bytes written for 8 characcters read.
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revision 1.3    locked by: root;
date: 2016/01/06 07:42:20;  author: root;  state: Exp;  lines: +1 -1
Terminating condition changed.
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revision 1.2
date: 2016/01/06 06:36:23;  author: root;  state: Exp;  lines: +28 -11
Bytes written are printed
Error conditions are added.
Comments are added of the process of Program.
—————————-
revision 1.1
date: 2016/01/06 06:22:08;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: compress.c,v
Working file: compress.c
head: 1.13
branch:
locks: strict
root: 1.13
access list:
symbolic names:
keyword substitution: kv
total revisions: 13;    selected revisions: 13
description:
Writing a common function which can replace all the compress2() to compress7() using single function.
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revision 1.13    locked by: root;
date: 2016/01/06 13:46:41;  author: root;  state: Exp;  lines: +1 -1
*** empty log message ***
—————————-
revision 1.12
date: 2016/01/06 13:41:46;  author: root;  state: Exp;  lines: +1 -1
*** empty log message ***
—————————-
revision 1.11
date: 2016/01/06 13:30:15;  author: root;  state: Exp;  lines: +4 -4
*** empty log message ***
—————————-
revision 1.10
date: 2016/01/06 13:24:41;  author: root;  state: Exp;  lines: +1 -1
*** empty log message ***
—————————-
revision 1.9
date: 2016/01/06 13:24:16;  author: root;  state: Exp;  lines: +1 -0
*** empty log message ***
—————————-
revision 1.8
date: 2016/01/06 13:22:18;  author: root;  state: Exp;  lines: +3 -1
Breaking condition added.
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revision 1.7
date: 2016/01/06 13:20:18;  author: root;  state: Exp;  lines: +2 -2
*** empty log message ***
—————————-
revision 1.6
date: 2016/01/06 13:18:29;  author: root;  state: Exp;  lines: +1 -1
*** empty log message ***
—————————-
revision 1.5
date: 2016/01/06 13:17:59;  author: root;  state: Exp;  lines: +1 -0
*** empty log message ***
—————————-
revision 1.4
date: 2016/01/06 13:14:55;  author: root;  state: Exp;  lines: +6 -4
*** empty log message ***
—————————-
revision 1.3
date: 2016/01/06 13:05:55;  author: root;  state: Exp;  lines: +1 -1
ce
—————————-
revision 1.2
date: 2016/01/06 13:05:29;  author: root;  state: Exp;  lines: +5 -4
ce
—————————-
revision 1.1
date: 2016/01/06 13:01:17;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: compression.c,v
Working file: compression.c
head: 1.18
branch:
locks: strict
root: 1.18
access list:
symbolic names:
keyword substitution: kv
total revisions: 18;    selected revisions: 18
description:
Defination of compression() has been started.
Only Prototype is written.
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revision 1.18    locked by: root;
date: 2016/01/06 13:02:05;  author: root;  state: Exp;  lines: +5 -4
compress() is called in place of compress2() and compress4().
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revision 1.17
date: 2016/01/06 06:22:40;  author: root;  state: Exp;  lines: +1 -1
compress7() is called.
—————————-
revision 1.16
date: 2016/01/04 09:43:37;  author: root;  state: Exp;  lines: +1 -1
compress6() is included.
—————————-
revision 1.15
date: 2016/01/04 08:00:43;  author: root;  state: Exp;  lines: +7 -10
compress2() is called.
—————————-
revision 1.14
date: 2016/01/04 04:34:13;  author: root;  state: Exp;  lines: +1 -1
compress3() is called.
—————————-
revision 1.13
date: 2016/01/03 22:19:12;  author: root;  state: Exp;  lines: +1 -1
compress5() function is called for code length 5.
—————————-
revision 1.12
date: 2016/01/03 22:10:52;  author: root;  state: Exp;  lines: +1 -1
A variable is initialized by 1
—————————-
revision 1.11
date: 2016/01/03 21:09:57;  author: root;  state: Exp;  lines: +2 -2
It returns no. of integers written in compressed file.
—————————-
revision 1.10
date: 2016/01/03 18:52:09;  author: root;  state: Exp;  lines: +1 -0
*** empty log message ***
—————————-
revision 1.9
date: 2016/01/03 17:42:11;  author: root;  state: Exp;  lines: +2 -1
fd and wfd are closed.
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revision 1.8
date: 2016/01/03 17:03:20;  author: root;  state: Exp;  lines: +2 -2
One more argument of type int is added.
It is wfd in which write file descriptor in which compressed file has to be written.
—————————-
revision 1.7
date: 2016/01/03 14:51:23;  author: root;  state: Exp;  lines: +2 -2
return type changes from char to extern unsigned char.
—————————-
revision 1.6
date: 2016/01/03 14:09:27;  author: root;  state: Exp;  lines: +7 -7
1st argument of compress4() has been change from char * to int type.
>> Now it will accept the fd of opened file i.i textfile.
—————————-
revision 1.5
date: 2016/01/03 14:03:13;  author: root;  state: Exp;  lines: +1 -1
The arguments of function call compress4() has been corrected.
—————————-
revision 1.4
date: 2016/01/03 14:00:45;  author: root;  state: Exp;  lines: +6 -1
compress4() has been called.
—————————-
revision 1.3
date: 2016/01/03 13:52:20;  author: root;  state: Exp;  lines: +5 -5
print statement has been added in corresponding cases of different code lenght just to chech the proper functioning.
—————————-
revision 1.2
date: 2016/01/03 13:49:28;  author: root;  state: Exp;  lines: +46 -2
codelenght is find out usinf findcodelength() function.
Then the corresponding copress function will be called like compress2(), compress4() etc. using switch statement.
It returns 0 on failure.
—————————-
revision 1.1
date: 2016/01/03 13:36:50;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: creatma.c,v
Working file: creatma.c
head: 1.10
branch:
locks: strict
root: 1.10
access list:
symbolic names:
keyword substitution: kv
total revisions: 10;    selected revisions: 10
description:
it defines the function creatmasterarray()
It has only one argument int fd which is file descriptor of open file which is to be compressed.
—————————-
revision 1.10    locked by: root;
date: 2016/01/04 08:10:54;  author: root;  state: Exp;  lines: +1 -1
*** empty log message ***
—————————-
revision 1.9
date: 2016/01/04 08:08:10;  author: root;  state: Exp;  lines: +2 -1
Textfile buffer is printed.
—————————-
revision 1.8
date: 2016/01/03 21:16:12;  author: root;  state: Exp;  lines: +1 -1
free() is used to free the memory allocated to buffer.
—————————-
revision 1.7
date: 2016/01/03 18:37:45;  author: root;  state: Exp;  lines: +1 -1
*** empty log message ***
—————————-
revision 1.6
date: 2016/01/03 18:36:49;  author: root;  state: Exp;  lines: +1 -1
Master array is created.
—————————-
revision 1.5
date: 2016/01/03 18:35:00;  author: root;  state: Exp;  lines: +1 -1
print statements added.
—————————-
revision 1.4
date: 2016/01/03 13:37:46;  author: root;  state: Exp;  lines: +0 -2
The file descriptor of opensed file (textfile) is not closed .
i.e close() statement is removed.
As it will be used by the compression function.
—————————-
revision 1.3
date: 2016/01/03 13:17:31;  author: root;  state: Exp;  lines: +20 -0
Error conditions for malloc and realloc are added.
exit() function is used for sending failure condition instead of using return 0.
—————————-
revision 1.2
date: 2016/01/03 13:08:27;  author: root;  state: Exp;  lines: +24 -4
It includes function creatmasterarray().
It has prototype extern char * creatmasterarray(int)
It has only one argument which is the file descriptor of file which is already opened in read only mode.
It returns pointer to master array on success.
It returns 0 on failure.
—————————-
revision 1.1
date: 2016/01/03 12:19:48;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: decompress2.c,v
Working file: decompress2.c
head: 1.5
branch:
locks: strict
root: 1.5
access list:
symbolic names:
keyword substitution: kv
total revisions: 5;    selected revisions: 5
description:
decompress2() is defined
1 byteread has 4 characters in it.
—————————-
revision 1.5    locked by: root;
date: 2016/01/04 09:04:47;  author: root;  state: Exp;  lines: +1 -0
Characters are printed.
—————————-
revision 1.4
date: 2016/01/04 09:02:43;  author: root;  state: Exp;  lines: +1 -0
i is declared.
—————————-
revision 1.3
date: 2016/01/04 09:02:03;  author: root;  state: Exp;  lines: +2 -2
compilation error resolving.
—————————-
revision 1.2
date: 2016/01/04 09:00:17;  author: root;  state: Exp;  lines: +15 -30
EOF character is finded.
Breaking condition is applied.
—————————-
revision 1.1
date: 2016/01/04 08:35:57;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: decompress3.c,v
Working file: decompress3.c
head: 1.13
branch:
locks: strict
root: 1.13
access list:
symbolic names:
keyword substitution: kv
total revisions: 13;    selected revisions: 13
description:
decompress3() function is defined here.
It writes 8 characters from 3 bytes read.
—————————-
revision 1.13    locked by: root;
date: 2016/01/04 07:13:55;  author: root;  state: Exp;  lines: +1 -1
*** empty log message ***
—————————-
revision 1.12
date: 2016/01/04 07:12:46;  author: root;  state: Exp;  lines: +1 -1
EOF character is written to decompressed file
—————————-
revision 1.11
date: 2016/01/04 07:12:11;  author: root;  state: Exp;  lines: +2 -0
*** empty log message ***
—————————-
revision 1.10
date: 2016/01/04 06:41:28;  author: root;  state: Exp;  lines: +2 -2
5th and 6th characters are corrrected.
—————————-
revision 1.9
date: 2016/01/04 06:31:15;  author: root;  state: Exp;  lines: +1 -1
Prnting the index.
—————————-
revision 1.8
date: 2016/01/04 06:29:05;  author: root;  state: Exp;  lines: +1 -1
*** empty log message ***
—————————-
revision 1.7
date: 2016/01/04 06:28:15;  author: root;  state: Exp;  lines: +1 -0
Problem inbyte 2 is resolving.
—————————-
revision 1.6
date: 2016/01/04 06:20:35;  author: root;  state: Exp;  lines: +3 -1
*** empty log message ***
—————————-
revision 1.5
date: 2016/01/04 06:10:56;  author: root;  state: Exp;  lines: +1 -1
Passing argument to findindex() is changed.
—————————-
revision 1.4
date: 2016/01/04 05:34:42;  author: root;  state: Exp;  lines: +3 -1
Terminating condition is changed.
—————————-
revision 1.3
date: 2016/01/04 05:31:18;  author: root;  state: Exp;  lines: +20 -24
*** empty log message ***
—————————-
revision 1.2
date: 2016/01/04 05:28:28;  author: root;  state: Exp;  lines: +1 -1
*** empty log message ***
—————————-
revision 1.1
date: 2016/01/04 05:26:06;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: decompress4.c,v
Working file: decompress4.c
head: 1.25
branch:
locks: strict
root: 1.25
access list:
symbolic names:
keyword substitution: kv
total revisions: 25;    selected revisions: 25
description:
Character corresponding to index is findout using findchar().
One byte has 2 characters.
—————————-
revision 1.25    locked by: root;
date: 2016/01/04 08:40:40;  author: root;  state: Exp;  lines: +1 -1
ce
—————————-
revision 1.24
date: 2016/01/04 08:36:26;  author: root;  state: Exp;  lines: +7 -5
*** empty log message ***
—————————-
revision 1.23
date: 2016/01/04 01:38:09;  author: root;  state: Exp;  lines: +2 -2
argument of findchar() changed
—————————-
revision 1.22
date: 2016/01/04 01:31:40;  author: root;  state: Exp;  lines: +2 -2
One more argument is added to findchar() which is type of decompression i.e.5
—————————-
revision 1.21
date: 2016/01/03 21:21:16;  author: root;  state: Exp;  lines: +3 -2
Print staements removed(which are unnneccesary).
—————————-
revision 1.20
date: 2016/01/03 21:19:02;  author: root;  state: Exp;  lines: +4 -3
Print statements are removed.
The decompressed characters are printed.
—————————-
revision 1.19
date: 2016/01/03 21:02:00;  author: root;  state: Exp;  lines: +1 -1
Last digit problem is resolved.
—————————-
revision 1.18
date: 2016/01/03 20:14:12;  author: root;  state: Exp;  lines: +2 -1
The problem of last byte is to be solved.
—————————-
revision 1.17
date: 2016/01/03 20:10:38;  author: root;  state: Exp;  lines: +1 -1
finding Problem.
—————————-
revision 1.16
date: 2016/01/03 20:01:47;  author: root;  state: Exp;  lines: +2 -2
*** empty log message ***
—————————-
revision 1.15
date: 2016/01/03 20:00:55;  author: root;  state: Exp;  lines: +1 -0
Detecting Problem.
—————————-
revision 1.14
date: 2016/01/03 19:59:45;  author: root;  state: Exp;  lines: +2 -2
*** empty log message ***
—————————-
revision 1.13
date: 2016/01/03 19:58:48;  author: root;  state: Exp;  lines: +1 -0
*** empty log message ***
—————————-
revision 1.12
date: 2016/01/03 19:57:06;  author: root;  state: Exp;  lines: +2 -2
*** empty log message ***
—————————-
revision 1.11
date: 2016/01/03 19:55:55;  author: root;  state: Exp;  lines: +2 -1
Detecting error.
—————————-
revision 1.10
date: 2016/01/03 19:53:04;  author: root;  state: Exp;  lines: +8 -2
Error check statements added.
—————————-
revision 1.9
date: 2016/01/03 19:50:56;  author: root;  state: Exp;  lines: +4 -0
break condition added.
—————————-
revision 1.8
date: 2016/01/03 19:49:34;  author: root;  state: Exp;  lines: +1 -1
*** empty log message ***
—————————-
revision 1.7
date: 2016/01/03 19:43:00;  author: root;  state: Exp;  lines: +2 -0
*** empty log message ***
—————————-
revision 1.6
date: 2016/01/03 19:40:45;  author: root;  state: Exp;  lines: +2 -0
Print statements added for troubleshooting.
—————————-
revision 1.5
date: 2016/01/03 19:37:27;  author: root;  state: Exp;  lines: +1 -0
*** empty log message ***
—————————-
revision 1.4
date: 2016/01/03 19:36:29;  author: root;  state: Exp;  lines: +1 -1
*** empty log message ***
—————————-
revision 1.3
date: 2016/01/03 19:35:30;  author: root;  state: Exp;  lines: +1 -1
defination of index  is removed.
—————————-
revision 1.2
date: 2016/01/03 19:33:44;  author: root;  state: Exp;  lines: +3 -3
Compilation error resolved.
—————————-
revision 1.1
date: 2016/01/03 19:30:37;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: decompress5.c,v
Working file: decompress5.c
head: 1.27
branch:
locks: strict
root: 1.27
access list:
symbolic names:
keyword substitution: kv
total revisions: 27;    selected revisions: 27
description:
decompress5() function is written.
% bytes are read at ones.
5 bytes are read at ones and it breaks at ch=255.
5 bytes means 8 characters.
—————————-
revision 1.27    locked by: root;
date: 2016/01/04 09:11:50;  author: root;  state: Exp;  lines: +3 -2
Print statement modified.
EOF is corrected.
—————————-
revision 1.26
date: 2016/01/04 09:10:03;  author: root;  state: Exp;  lines: +1 -1
*** empty log message ***
—————————-
revision 1.25
date: 2016/01/04 07:13:56;  author: root;  state: Exp;  lines: +1 -1
*** empty log message ***
—————————-
revision 1.24
date: 2016/01/04 07:13:08;  author: root;  state: Exp;  lines: +1 -1
EOF character is written to decompressed file.
—————————-
revision 1.23
date: 2016/01/04 07:12:14;  author: root;  state: Exp;  lines: +8 -10
*** empty log message ***
—————————-
revision 1.22
date: 2016/01/04 05:31:21;  author: root;  state: Exp;  lines: +25 -21
*** empty log message ***
—————————-
revision 1.21
date: 2016/01/04 05:26:55;  author: root;  state: Exp;  lines: +21 -25
*** empty log message ***
—————————-
revision 1.20
date: 2016/01/04 02:17:12;  author: root;  state: Exp;  lines: +1 -1
Breaking condition changed.
—————————-
revision 1.19
date: 2016/01/04 02:16:12;  author: root;  state: Exp;  lines: +1 -2
ce
—————————-
revision 1.18
date: 2016/01/04 02:14:58;  author: root;  state: Exp;  lines: +3 -47
Unneccesory code is deleted.
—————————-
revision 1.17
date: 2016/01/04 02:10:06;  author: root;  state: Exp;  lines: +11 -7
*** empty log message ***
—————————-
revision 1.16
date: 2016/01/04 02:04:53;  author: root;  state: Exp;  lines: +1 -0
*** empty log message ***
—————————-
revision 1.15
date: 2016/01/04 02:02:00;  author: root;  state: Exp;  lines: +3 -1
EOF problem resolving.
—————————-
revision 1.14
date: 2016/01/04 01:55:46;  author: root;  state: Exp;  lines: +1 -4
*** empty log message ***
—————————-
revision 1.13
date: 2016/01/04 01:55:09;  author: root;  state: Exp;  lines: +9 -2
Eof condition checked.
—————————-
revision 1.12
date: 2016/01/04 01:50:09;  author: root;  state: Exp;  lines: +9 -6
a variable is added.
—————————-
revision 1.11
date: 2016/01/04 01:38:33;  author: root;  state: Exp;  lines: +1 -1
argument of findchar() changed
—————————-
revision 1.10
date: 2016/01/04 01:32:16;  author: root;  state: Exp;  lines: +1 -1
ne more argument is added to findchar() which is type of decompression i
—————————-
revision 1.9
date: 2016/01/04 01:23:13;  author: root;  state: Exp;  lines: +0 -5
*** empty log message ***
—————————-
revision 1.8
date: 2016/01/04 01:22:01;  author: root;  state: Exp;  lines: +1 -1
*** empty log message ***
—————————-
revision 1.7
date: 2016/01/04 01:20:46;  author: root;  state: Exp;  lines: +5 -0
Eof condition testing.
—————————-
revision 1.6
date: 2016/01/04 01:17:13;  author: root;  state: Exp;  lines: +7 -7
ce
—————————-
revision 1.5
date: 2016/01/04 01:15:45;  author: root;  state: Exp;  lines: +17 -0
Condition for EOF is finding.
—————————-
revision 1.4
date: 2016/01/04 01:06:21;  author: root;  state: Exp;  lines: +1 -1
ce
—————————-
revision 1.3
date: 2016/01/04 01:05:37;  author: root;  state: Exp;  lines: +4 -3
*** empty log message ***
—————————-
revision 1.2
date: 2016/01/04 01:02:42;  author: root;  state: Exp;  lines: +1 -1
ce
—————————-
revision 1.1
date: 2016/01/04 00:59:24;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: decompress6.c,v
Working file: decompress6.c
head: 1.6
branch:
locks: strict
root: 1.6
access list:
symbolic names:
keyword substitution: kv
total revisions: 6;    selected revisions: 6
description:
decompress6() is defined .
It writes 4 characters for 3 bytes read.
EOF condition is also checked.
—————————-
revision 1.6    locked by: root;
date: 2016/01/04 10:31:58;  author: root;  state: Exp;  lines: +2 -1
Print statement changed.
—————————-
revision 1.5
date: 2016/01/04 10:30:46;  author: root;  state: Exp;  lines: +1 -1
The no. of characters read at once changed from 5 to 3.
—————————-
revision 1.4
date: 2016/01/04 10:23:59;  author: root;  state: Exp;  lines: +1 -1
*** empty log message ***
—————————-
revision 1.3
date: 2016/01/04 10:23:08;  author: root;  state: Exp;  lines: +1 -1
Finding problem in decompression..
—————————-
revision 1.2
date: 2016/01/04 10:14:50;  author: root;  state: Exp;  lines: +1 -1
name of function is corrected.
—————————-
revision 1.1
date: 2016/01/04 10:13:10;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: decompress7.c,v
Working file: decompress7.c
head: 1.14
branch:
locks: strict
root: 1.14
access list:
symbolic names:
keyword substitution: kv
total revisions: 14;    selected revisions: 14
description:
decompress7() is defined.
—————————-
revision 1.14    locked by: root;
date: 2016/01/06 08:22:34;  author: root;  state: Exp;  lines: +6 -0
Correcting problem of last character in 7th byte.
—————————-
revision 1.13
date: 2016/01/06 08:14:50;  author: root;  state: Exp;  lines: +1 -1
*** empty log message ***
—————————-
revision 1.12
date: 2016/01/06 08:08:02;  author: root;  state: Exp;  lines: +4 -0
Initializing index with 0.
—————————-
revision 1.11
date: 2016/01/06 08:00:01;  author: root;  state: Exp;  lines: +1 -1
*** empty log message ***
—————————-
revision 1.10
date: 2016/01/06 07:58:16;  author: root;  state: Exp;  lines: +1 -1
There are 8 index at a time than 7
—————————-
revision 1.9
date: 2016/01/06 07:49:16;  author: root;  state: Exp;  lines: +4 -1
EOF condition finding.
—————————-
revision 1.8
date: 2016/01/06 07:44:08;  author: root;  state: Exp;  lines: +1 -1
Print statement for printing index is removed.
—————————-
revision 1.7
date: 2016/01/06 07:43:15;  author: root;  state: Exp;  lines: +1 -1
Reading one byte at ones.
The read character is assigned to bytes[i]
—————————-
revision 1.6
date: 2016/01/06 07:42:51;  author: root;  state: Exp;  lines: +2 -1
*** empty log message ***
—————————-
revision 1.5
date: 2016/01/06 07:08:35;  author: root;  state: Exp;  lines: +1 -1
Printing the index and character.
—————————-
revision 1.4
date: 2016/01/06 07:06:09;  author: root;  state: Exp;  lines: +6 -7
Testing break of loop.
—————————-
revision 1.3
date: 2016/01/06 07:00:34;  author: root;  state: Exp;  lines: +2 -2
compilation error resolved.
—————————-
revision 1.2
date: 2016/01/06 06:57:07;  author: root;  state: Exp;  lines: +22 -34
8 characters are written for 7 bytes read.
Terminating condition is written.
EOF character is written.
—————————-
revision 1.1
date: 2016/01/06 06:41:01;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: decompression.c,v
Working file: decompression.c
head: 1.12
branch:
locks: strict
root: 1.12
access list:
symbolic names:
keyword substitution: kv
total revisions: 12;    selected revisions: 12
description:
It finds codelength using findcodelength() function.
switch case is used for various decompress functions of diferrent code lengths.
—————————-
revision 1.12    locked by: root;
date: 2016/01/06 06:41:12;  author: root;  state: Exp;  lines: +27 -2
decompress7() is called
return value of decompress2() ,decompress3() ,decompress4(),decompress5(),decompress6() and decompress7() are checked.
They show error when the return value less than 0.
—————————-
revision 1.11
date: 2016/01/04 10:18:31;  author: root;  state: Exp;  lines: +1 -2
*** empty log message ***
—————————-
revision 1.10
date: 2016/01/04 10:17:26;  author: root;  state: Exp;  lines: +1 -1
Prototype of function call decompress6() is corrected.
—————————-
revision 1.9
date: 2016/01/04 10:16:04;  author: root;  state: Exp;  lines: +1 -1
decompress6() is called for code length =6.
—————————-
revision 1.8
date: 2016/01/04 08:36:30;  author: root;  state: Exp;  lines: +3 -3
decompress2() has been called.
—————————-
revision 1.7
date: 2016/01/04 05:27:04;  author: root;  state: Exp;  lines: +2 -2
decompress3() is called.
—————————-
revision 1.6
date: 2016/01/04 01:00:28;  author: root;  state: Exp;  lines: +1 -1
decompress5() is called.
—————————-
revision 1.5
date: 2016/01/03 21:23:35;  author: root;  state: Exp;  lines: +1 -1
Unnecessory Print statements removed.
—————————-
revision 1.4
date: 2016/01/03 19:31:21;  author: root;  state: Exp;  lines: +7 -1
decompress4() is called.
—————————-
revision 1.3
date: 2016/01/03 19:04:00;  author: root;  state: Exp;  lines: +2 -2
conflicting data types.
—————————-
revision 1.2
date: 2016/01/03 18:59:42;  author: root;  state: Exp;  lines: +1 -1
ce
—————————-
revision 1.1
date: 2016/01/03 18:52:35;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: findchar.c,v
Working file: findchar.c
head: 1.13
branch:
locks: strict
root: 1.13
access list:
symbolic names:
keyword substitution: kv
total revisions: 13;    selected revisions: 13
description:
findchar() is defined.
It will return the character corresponding to index in master array.
—————————-
revision 1.13    locked by: root;
date: 2016/01/04 09:00:43;  author: root;  state: Exp;  lines: +3 -1
condition for code length 2 is added.
—————————-
revision 1.12
date: 2016/01/04 01:36:29;  author: root;  state: Exp;  lines: +5 -5
*** empty log message ***
—————————-
revision 1.11
date: 2016/01/04 01:32:49;  author: root;  state: Exp;  lines: +11 -3
Prototype includes one more integer typeargument which is type of argument.
—————————-
revision 1.10
date: 2016/01/03 21:19:31;  author: root;  state: Exp;  lines: +1 -1
The print statement is removed.
—————————-
revision 1.9
date: 2016/01/03 20:08:58;  author: root;  state: Exp;  lines: +2 -2
Detecting errors.
—————————-
revision 1.8
date: 2016/01/03 20:06:43;  author: root;  state: Exp;  lines: +2 -2
Detecting problem
—————————-
revision 1.7
date: 2016/01/03 20:03:55;  author: root;  state: Exp;  lines: +1 -0
Finding Problem
—————————-
revision 1.6
date: 2016/01/03 19:58:50;  author: root;  state: Exp;  lines: +1 -1
*** empty log message ***
—————————-
revision 1.5
date: 2016/01/03 19:49:42;  author: root;  state: Exp;  lines: +2 -2
*** empty log message ***
—————————-
revision 1.4
date: 2016/01/03 19:45:09;  author: root;  state: Exp;  lines: +2 -0
atoi is used.
—————————-
revision 1.3
date: 2016/01/03 19:41:01;  author: root;  state: Exp;  lines: +1 -1
Print statements added to find error.
—————————-
revision 1.2
date: 2016/01/03 19:35:42;  author: root;  state: Exp;  lines: +0 -1
*** empty log message ***
—————————-
revision 1.1
date: 2016/01/03 19:32:01;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: findcl.c,v
Working file: findcl.c
head: 1.2
branch:
locks: strict
root: 1.2
access list:
symbolic names:
keyword substitution: kv
total revisions: 2;    selected revisions: 2
description:
it defines function findcodelength()
It has one argument of char * type.
This argument is for string whose codelenghth is to be found.
Codelength is no. of minimum bits required to represent all the characters in a different way.
it has return type integer which returns the code lenghth on success and returns -1 for failure.
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revision 1.2    locked by: root;
date: 2016/01/04 04:46:58;  author: root;  state: Exp;  lines: +9 -9
Code length fn. is changed.
Now code length =2^n has codelength n.
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revision 1.1
date: 2016/01/03 12:22:02;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: findindex.c,v
Working file: findindex.c
head: 1.12
branch:
locks: strict
root: 1.12
access list:
symbolic names:
keyword substitution: kv
total revisions: 12;    selected revisions: 12
description:
This function is used to find the index of Any character in the master array.
It has 2 arguments
1st is tthe character
2nd argument is pointer to master array.
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revision 1.12    locked by: root;
date: 2016/01/04 09:55:59;  author: root;  state: Exp;  lines: +1 -1
*** empty log message ***
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revision 1.11
date: 2016/01/04 08:17:00;  author: root;  state: Exp;  lines: +1 -1
Print statement added for resolving compress2() function.
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revision 1.10
date: 2016/01/04 07:16:54;  author: root;  state: Exp;  lines: +1 -1
print statement removed.
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revision 1.9
date: 2016/01/04 06:54:06;  author: root;  state: Exp;  lines: +2 -2
Prototype changed from char to unsigned char for 1st argument.
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revision 1.8
date: 2016/01/04 06:06:51;  author: root;  state: Exp;  lines: +1 -1
data type of index changed.
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revision 1.7
date: 2016/01/04 00:06:45;  author: root;  state: Exp;  lines: +1 -1
nneccesort print statement removed.
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revision 1.6
date: 2016/01/03 20:56:08;  author: root;  state: Exp;  lines: +1 -1
function is corrected.
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revision 1.5
date: 2016/01/03 20:49:43;  author: root;  state: Exp;  lines: +1 -1
Typecasting is used.
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revision 1.4
date: 2016/01/03 20:46:03;  author: root;  state: Exp;  lines: +6 -4
The return type of findindex() changed from unsigned int to unsigned char.
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revision 1.3
date: 2016/01/03 16:02:28;  author: root;  state: Exp;  lines: +5 -2
if-else condition is added.
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revision 1.2
date: 2016/01/03 15:58:47;  author: root;  state: Exp;  lines: +1 -1
name of function changes from index to findindex.
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revision 1.1
date: 2016/01/03 15:55:52;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: mdc.c,v
Working file: mdc.c
head: 1.14
branch:
locks: strict
root: 1.14
access list:
symbolic names:
keyword substitution: kv
total revisions: 14;    selected revisions: 14
description:
It is the main file in which all the prossesing takes place.
It has the function main()
It contains all the function calls.
A file “textfile” is open.
Unique/Master array of this file is created by using function creatmasterarray() and return the starting address of the unique array.
Before this a file textfile is open in read-only mode using function openfile()
which return the fd of opened file.
codelength of the master array is find out using function findcodelength().
The unique array is written to a file “keyfile” using function writema().
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revision 1.14    locked by: root;
date: 2016/01/04 07:15:45;  author: root;  state: Exp;  lines: +3 -1
findcodelength() function removed.
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revision 1.13
date: 2016/01/03 22:11:18;  author: root;  state: Exp;  lines: +1 -1
*** empty log message ***
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revision 1.12
date: 2016/01/03 21:40:55;  author: root;  state: Exp;  lines: +3 -6
Terminal arguments are given in main() function as argv for name of files to open,read, write.
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revision 1.11
date: 2016/01/03 21:16:35;  author: root;  state: Exp;  lines: +1 -0
The no. of bytes written to decompressed file is printed.
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revision 1.10
date: 2016/01/03 21:10:24;  author: root;  state: Exp;  lines: +2 -2
Data type of ca changes from char* to int
In function compression()
It takes no. of integers written to compressedfile.
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revision 1.9
date: 2016/01/03 18:54:05;  author: root;  state: Exp;  lines: +2 -2
compressioon.h is included.
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revision 1.8
date: 2016/01/03 17:36:33;  author: root;  state: Exp;  lines: +2 -1
wfd is passes to compression(0
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revision 1.7
date: 2016/01/03 17:35:13;  author: root;  state: Exp;  lines: +7 -1
*** empty log message ***
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revision 1.6
date: 2016/01/03 14:51:53;  author: root;  state: Exp;  lines: +1 -1
the data type of compressed array i.e. ca is changed from char to unsigned char.
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revision 1.5
date: 2016/01/03 14:09:37;  author: root;  state: Exp;  lines: +1 -1
In function call compression() 1st expression changes from “textfile” (name of file to be compressed.) to fd (which is file descriptor of file already opened).
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revision 1.4
date: 2016/01/03 13:41:41;  author: root;  state: Exp;  lines: +5 -0
Error condition of compression function added.
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revision 1.3
date: 2016/01/03 13:40:03;  author: root;  state: Exp;  lines: +1 -1
There is a compilation error due to non placing ;
It is put there.
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revision 1.2
date: 2016/01/03 13:39:02;  author: root;  state: Exp;  lines: +3 -1
The function compression() has been called.
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revision 1.1
date: 2016/01/03 12:37:58;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: mddc.c,v
Working file: mddc.c
head: 1.14
branch:
locks: strict
root: 1.14
access list:
symbolic names:
keyword substitution: kv
total revisions: 14;    selected revisions: 14
description:
It is The main file for decompression.
It opens the compressedfile and keyfile in Read Only mode
And decompressed file in Write Only Mode.
The unique array is retrieved.
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revision 1.14    locked by: root;
date: 2016/01/04 05:39:39;  author: root;  state: Exp;  lines: +2 -0
Master array is printed
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revision 1.13
date: 2016/01/03 21:45:42;  author: root;  state: Exp;  lines: +1 -1
Compilation error resolved.
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revision 1.12
date: 2016/01/03 21:44:54;  author: root;  state: Exp;  lines: +3 -3
Command line arguments are used for file names.
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revision 1.11
date: 2016/01/03 21:21:55;  author: root;  state: Exp;  lines: +0 -7
findcodelength() function is removed.
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revision 1.10
date: 2016/01/03 18:54:23;  author: root;  state: Exp;  lines: +3 -2
decompression.h is included.
Decompression function is called.
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revision 1.9
date: 2016/01/03 18:40:16;  author: root;  state: Exp;  lines: +1 -1
Compilation errors resolved.
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revision 1.8
date: 2016/01/03 18:39:32;  author: root;  state: Exp;  lines: +12 -7
Error statements are added (if any arise
)
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revision 1.7
date: 2016/01/03 18:31:57;  author: root;  state: Exp;  lines: +5 -5
*** empty log message ***
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revision 1.6
date: 2016/01/03 18:30:48;  author: root;  state: Exp;  lines: +6 -0
Print statements added
—————————-
revision 1.5
date: 2016/01/03 18:26:30;  author: root;  state: Exp;  lines: +1 -1
Print statement corrected.
—————————-
revision 1.4
date: 2016/01/03 18:25:40;  author: root;  state: Exp;  lines: +1 -0
*** empty log message ***
—————————-
revision 1.3
date: 2016/01/03 18:23:20;  author: root;  state: Exp;  lines: +1 -1
Print statement added.
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revision 1.2
date: 2016/01/03 18:16:21;  author: root;  state: Exp;  lines: +2 -2
Compilation error corrected.
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revision 1.1
date: 2016/01/03 18:13:28;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: readfile.c,v
Working file: readfile.c
head: 1.1
branch:
locks: strict
root: 1.1
access list:
symbolic names:
keyword substitution: kv
total revisions: 1;    selected revisions: 1
description:
It has function openfile().
Its prototype is extern int openfile(char *)
It opens a file in read only mode and return the file descriptor of opened file.
It returns -1 on failure.
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revision 1.1    locked by: root;
date: 2016/01/03 12:44:11;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: writema.c,v
Working file: writema.c
head: 1.1
branch:
locks: strict
root: 1.1
access list:
symbolic names:
keyword substitution: kv
total revisions: 1;    selected revisions: 1
description:
It defines function writema().
This function has prototype : extern int writema(char *,char *)
It has 2 arguments,1st is address of unique array to be written and other is name of file in which it s to be written.
It open the file in write only mode and write master array to it.
It returns 0 on success and -1 on failure.
—————————-
revision 1.1    locked by: root;
date: 2016/01/03 12:46:33;  author: root;  state: Exp;
Initial revision
=============================================================================

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