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;
}

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>;
*/

——————————–

——————————–
RCS file: header.h,v
Working file: header.h
head: 1.1
branch:
locks: strict
root: 1.1
access list:
symbolic names:
keyword substitution: kv
total revisions: 1;    selected revisions: 1
description:
It includes basic headerfiles for FIFOs.
It contains stdio.h, fcntl.h, unistd.h, sys/types.h, sys/stat.h
It contains #ifndef HEADERS to avoid multiple declaration of heders by differnt files.
—————————-
revision 1.1    locked by: root;
date: 2015/12/21 04:54:01;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: request.h,v
Working file: request.h
head: 1.7
branch:
locks: strict
root: 1.7
access list:
symbolic names:
keyword substitution: kv
total revisions: 7;    selected revisions: 7
description:
It contains struct request
It is format of basic client request.
It contains client PID, 2 objects,operation to be performed.
—————————-
revision 1.7    locked by: root;
date: 2015/12/21 05:56:59;  author: root;  state: Exp;  lines: +1 -1
*** empty log message ***
—————————-
revision 1.6
date: 2015/12/21 05:52:10;  author: root;  state: Exp;  lines: +1 -1
*** empty log message ***
—————————-
revision 1.5
date: 2015/12/21 05:50:03;  author: root;  state: Exp;  lines: +1 -1
*** empty log message ***
—————————-
revision 1.4
date: 2015/12/21 05:46:10;  author: root;  state: Exp;  lines: +1 -1
*** empty log message ***
—————————-
revision 1.3
date: 2015/12/21 05:32:51;  author: root;  state: Exp;  lines: +1 -1
*** empty log message ***
—————————-
revision 1.2
date: 2015/12/21 05:27:31;  author: root;  state: Exp;  lines: +1 -1
Macro of REQUESTFIFO is redefined which contains a %d which will be its PID.
—————————-
revision 1.1
date: 2015/12/21 04:56:38;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: adder.c,v
Working file: adder.c
head: 1.1
branch:
locks: strict
root: 1.1
access list:
symbolic names:
keyword substitution: kv
total revisions: 1;    selected revisions: 1
description:
adder has command line arguments which contains File Descriptors of pipe.
adder read request from server for adding 2 objects
adder write result(int) into server.
—————————-
revision 1.1    locked by: root;
date: 2015/12/21 04:40:12;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: client1.c,v
Working file: client1.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 open the requestfifo
Write request for addition using struct request to server
Then, it reads result(int) from server.
Before reading result “resultfifo” is being created by client.
Different clients uses same requestfifo but they have unique resultfifo which is created by client itself.
—————————-
revision 1.14    locked by: root;
date: 2015/12/21 06:16:33;  author: root;  state: Exp;  lines: +1 -1
*** empty log message ***
—————————-
revision 1.13
date: 2015/12/21 06:11:20;  author: root;  state: Exp;  lines: +7 -7
name of arr changes to client_fifo
—————————-
revision 1.12
date: 2015/12/21 05:59:17;  author: root;  state: Exp;  lines: +1 -1
*** empty log message ***
—————————-
revision 1.11
date: 2015/12/21 05:56:32;  author: root;  state: Exp;  lines: +3 -3
arr data type changes from char * to string.
—————————-
revision 1.10
date: 2015/12/21 05:52:06;  author: root;  state: Exp;  lines: +2 -2
*** empty log message ***
—————————-
revision 1.9
date: 2015/12/21 05:50:02;  author: root;  state: Exp;  lines: +2 -2
*** empty log message ***
—————————-
revision 1.8
date: 2015/12/21 05:46:08;  author: root;  state: Exp;  lines: +2 -2
*** empty log message ***
—————————-
revision 1.7
date: 2015/12/21 05:41:58;  author: root;  state: Exp;  lines: +1 -1
*** empty log message ***
—————————-
revision 1.6
date: 2015/12/21 05:39:43;  author: root;  state: Exp;  lines: +2 -2
*** empty log message ***
—————————-
revision 1.5
date: 2015/12/21 05:35:20;  author: root;  state: Exp;  lines: +2 -2
*** empty log message ***
—————————-
revision 1.4
date: 2015/12/21 05:34:03;  author: root;  state: Exp;  lines: +1 -1
*** empty log message ***
—————————-
revision 1.3
date: 2015/12/21 05:32:47;  author: root;  state: Exp;  lines: +1 -0
*** empty log message ***
—————————-
revision 1.2
date: 2015/12/21 05:27:08;  author: root;  state: Exp;  lines: +3 -1
sprintf() is used for creating client address.
—————————-
revision 1.1
date: 2015/12/21 04:42:31;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: client2.c,v
Working file: client2.c
head: 1.2
branch:
locks: strict
root: 1.2
access list:
symbolic names:
keyword substitution: kv
total revisions: 2;    selected revisions: 2
description:
client2 request for subtraction from the server.
It writes its request from requestfifo.
And it creates the resultfifo.
And it reads result from server through resultfifo.
—————————-
revision 1.2    locked by: root;
date: 2015/12/21 06:36:30;  author: root;  state: Exp;  lines: +7 -4
client_fifo is introduced.
—————————-
revision 1.1
date: 2015/12/21 05:09:19;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: client3.c,v
Working file: client3.c
head: 1.3
branch:
locks: strict
root: 1.3
access list:
symbolic names:
keyword substitution: kv
total revisions: 3;    selected revisions: 3
description:
This client request for multiplication.
It writes request to server through requestfifo.
It creates resultfifo.
It reads result from server through resultfifo.
—————————-
revision 1.3    locked by: root;
date: 2015/12/21 06:37:03;  author: root;  state: Exp;  lines: +7 -4
client_fifo is introduced.
—————————-
revision 1.2
date: 2015/12/21 05:16:34;  author: root;  state: Exp;  lines: +1 -1
Values of objects changed.
—————————-
revision 1.1
date: 2015/12/21 05:14:09;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: multiplier.c,v
Working file: multiplier.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 read request from server from pipe for multiplication purpose.
It prosses the request and get the result.
result is written to server through pipe.
—————————-
revision 1.1    locked by: root;
date: 2015/12/21 04:46:24;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: server.c,v
Working file: server.c
head: 1.6
branch:
locks: strict
root: 1.6
access list:
symbolic names:
keyword substitution: kv
total revisions: 6;    selected revisions: 6
description:
Ii can handle only 1 client in this revision.
requestfifo is created.
It reads the request from client.
A pipe is created by server.
This pipe is used to send request to adder.
Then, it read result(int) from adder.
through pipe.
It writes result to the client using resultfifo (of respectice client).
—————————-
revision 1.6    locked by: root;
date: 2015/12/21 06:18:23;  author: root;  state: Exp;  lines: +1 -1
client_fifo data type changes from char to string.
—————————-
revision 1.5
date: 2015/12/21 06:16:43;  author: root;  state: Exp;  lines: +1 -1
sprintf() is used for getting RESULTFIFO name.
—————————-
revision 1.4
date: 2015/12/21 06:11:34;  author: root;  state: Exp;  lines: +3 -1
client_fifo is used for RESULT_FIFO.
—————————-
revision 1.3
date: 2015/12/21 05:06:34;  author: root;  state: Exp;  lines: +3 -3
+,-,* are replaced by ‘+’,’-’,’*’ respectively in switch case of operation.
—————————-
revision 1.2
date: 2015/12/21 05:04:10;  author: root;  state: Exp;  lines: +13 -3
execl() for subtractor and multiplier are also included along with addition in a switch case which depend on operand of the request by the client.
—————————-
revision 1.1
date: 2015/12/21 04:47:51;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: subtractor.c,v
Working file: subtractor.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 reads request from server through pipe for subtraction purpose.
It processes the request and get the result.
result is send to server by the pipe.
—————————-
revision 1.1    locked by: root;
date: 2015/12/21 04:52:26;  author: root;  state: Exp;
Initial revision
=============================================================================

————————————

————————————
RCS file: header.h,v
Working file: header.h
head: 1.2
branch:
locks: strict
root: 1.2
access list:
symbolic names:
keyword substitution: kv
total revisions: 2;    selected revisions: 2
description:
It contains basic header files for communication using FIFO.
—————————-
revision 1.2    locked by: root;
date: 2015/12/20 23:20:47;  author: root;  state: Exp;  lines: +2 -2
It is prevented from multiple declarations.
—————————-
revision 1.1
date: 2015/12/20 23:18:12;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: request.h,v
Working file: request.h
head: 1.5
branch:
locks: strict
root: 1.5
access list:
symbolic names:
keyword substitution: kv
total revisions: 5;    selected revisions: 5
description:
This is format of client request.
it contains client pid, operator and 2 objects(int).
—————————-
revision 1.5    locked by: root;
date: 2015/12/21 04:27:36;  author: root;  state: Exp;  lines: +2 -2
*** empty log message ***
—————————-
revision 1.4
date: 2015/12/21 04:26:40;  author: root;  state: Exp;  lines: +2 -2
*** empty log message ***
—————————-
revision 1.3
date: 2015/12/21 03:53:15;  author: root;  state: Exp;  lines: +3 -0
macro REQUESTFIFO and RESULTFIFO are defined.
—————————-
revision 1.2
date: 2015/12/21 01:32:02;  author: root;  state: Exp;  lines: +1 -1
name of cpid changes to pid.
—————————-
revision 1.1
date: 2015/12/20 23:18:41;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: adder.c,v
Working file: adder.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 is a function for adding.
It reads request from server as struct request and write result to server in int format through pipe.
—————————-
revision 1.1    locked by: root;
date: 2015/12/21 02:02:20;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: client1.c,v
Working file: client1.c
head: 1.22
branch:
locks: strict
root: 1.22
access list:
symbolic names:
keyword substitution: kv
total revisions: 22;    selected revisions: 22
description:
client open the requestfifo.
client writes some text into i.
—————————-
revision 1.22    locked by: root;
date: 2015/12/21 04:29:45;  author: root;  state: Exp;  lines: +4 -4
*** empty log message ***
—————————-
revision 1.21
date: 2015/12/21 04:09:45;  author: root;  state: Exp;  lines: +1 -1
*** empty log message ***
—————————-
revision 1.20
date: 2015/12/21 04:08:24;  author: root;  state: Exp;  lines: +1 -1
*** empty log message ***
—————————-
revision 1.19
date: 2015/12/21 04:07:12;  author: root;  state: Exp;  lines: +2 -2
ce
—————————-
revision 1.18
date: 2015/12/21 03:57:01;  author: root;  state: Exp;  lines: +4 -4
*** empty log message ***
—————————-
revision 1.17
date: 2015/12/21 03:52:08;  author: root;  state: Exp;  lines: +6 -6
requestfifo is replaced by REQUESTFIFO
resultfifo is replaced by RESULTFIFO
—————————-
revision 1.16
date: 2015/12/21 03:17:55;  author: root;  state: Exp;  lines: +10 -1
Now, client creates resultfifo.
resultfifo is open in mode 666.
—————————-
revision 1.15
date: 2015/12/21 02:52:59;  author: root;  state: Exp;  lines: +1 -1
sleep time increse from 4 to 8.
—————————-
revision 1.14
date: 2015/12/21 02:49:55;  author: root;  state: Exp;  lines: +2 -2
name of requestfifo corrected to resultfifo.
—————————-
revision 1.13
date: 2015/12/21 02:42:57;  author: root;  state: Exp;  lines: +1 -1
sleep time reduced to 4 from 10.
—————————-
revision 1.12
date: 2015/12/21 02:34:15;  author: root;  state: Exp;  lines: +2 -1
sleep(10) added.
—————————-
revision 1.11
date: 2015/12/21 02:24:59;  author: root;  state: Exp;  lines: +31 -6
Client reads result from server.
—————————-
revision 1.10
date: 2015/12/21 01:33:51;  author: root;  state: Exp;  lines: +1 -1
buff is removed.
—————————-
revision 1.9
date: 2015/12/21 01:31:01;  author: root;  state: Exp;  lines: +13 -4
Server reading request.
—————————-
revision 1.8
date: 2015/12/21 01:12:53;  author: root;  state: Exp;  lines: +2 -1
*** empty log message ***
—————————-
revision 1.7
date: 2015/12/21 00:03:08;  author: root;  state: Exp;  lines: +1 -0
*** empty log message ***
—————————-
revision 1.6
date: 2015/12/21 00:00:49;  author: root;  state: Exp;  lines: +2 -2
*** empty log message ***
—————————-
revision 1.5
date: 2015/12/20 23:59:50;  author: root;  state: Exp;  lines: +2 -1
*** empty log message ***
—————————-
revision 1.4
date: 2015/12/20 23:56:41;  author: root;  state: Exp;  lines: +2 -3
A character is written to FIF
O.
—————————-
revision 1.3
date: 2015/12/20 23:45:04;  author: root;  state: Exp;  lines: +2 -0
*** empty log message ***
—————————-
revision 1.2
date: 2015/12/20 23:39:19;  author: root;  state: Exp;  lines: +2 -2
some print statements added.
—————————-
revision 1.1
date: 2015/12/20 23:11:52;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: server.c,v
Working file: server.c
head: 1.37
branch:
locks: strict
root: 1.37
access list:
symbolic names:
keyword substitution: kv
total revisions: 37;    selected revisions: 37
description:
Server creates requestfifo using mkfifo() function.
—————————-
revision 1.37    locked by: root;
date: 2015/12/21 04:29:53;  author: root;  state: Exp;  lines: +2 -2
*** empty log message ***
—————————-
revision 1.36
date: 2015/12/21 04:24:47;  author: root;  state: Exp;  lines: +2 -2
*** empty log message ***
—————————-
revision 1.35
date: 2015/12/21 04:09:47;  author: root;  state: Exp;  lines: +1 -1
*** empty log message ***
—————————-
revision 1.34
date: 2015/12/21 04:08:25;  author: root;  state: Exp;  lines: +1 -1
*** empty log message ***
—————————-
revision 1.33
date: 2015/12/21 04:07:16;  author: root;  state: Exp;  lines: +2 -2
ce
—————————-
revision 1.32
date: 2015/12/21 03:57:02;  author: root;  state: Exp;  lines: +6 -6
*** empty log message ***
—————————-
revision 1.31
date: 2015/12/21 03:52:55;  author: root;  state: Exp;  lines: +11 -11
requestfifo is replaced by REQUESTFIFO
>> resultfifo is replaced by RESULTFIFO
>> .
—————————-
revision 1.30
date: 2015/12/21 03:18:28;  author: root;  state: Exp;  lines: +4 -0
server write result into resultfifo.
server do not create resultfifo from now.
—————————-
revision 1.29
date: 2015/12/21 02:55:05;  author: root;  state: Exp;  lines: +1 -1
printing changes.
—————————-
revision 1.28
date: 2015/12/21 02:41:37;  author: root;  state: Exp;  lines: +3 -0
adding print statements.
—————————-
revision 1.27
date: 2015/12/21 02:37:45;  author: root;  state: Exp;  lines: +1 -1
ce
—————————-
revision 1.26
date: 2015/12/21 02:34:32;  author: root;  state: Exp;  lines: +1 -1
sleep(1) added.
—————————-
revision 1.25
date: 2015/12/21 02:28:43;  author: root;  state: Exp;  lines: +1 -1
Problem in passing argument to write.
It is an address.
—————————-
revision 1.24
date: 2015/12/21 02:28:08;  author: root;  state: Exp;  lines: +2 -2
ce
—————————-
revision 1.23
date: 2015/12/21 02:27:11;  author: root;  state: Exp;  lines: +1 -1
ce
—————————-
revision 1.22
date: 2015/12/21 02:25:30;  author: root;  state: Exp;  lines: +4 -3
Server writes result to client.
—————————-
revision 1.21
date: 2015/12/21 02:12:44;  author: root;  state: Exp;  lines: +1 -1
sleep(1) is added between writing request and reading result from adder.
—————————-
revision 1.20
date: 2015/12/21 02:11:10;  author: root;  state: Exp;  lines: +1 -1
data type of char rfd,wfd changes to char rfd[4],wfd[4]
—————————-
revision 1.19
date: 2015/12/21 02:09:06;  author: root;  state: Exp;  lines: +1 -1
rfd and wfd of pipe which are to be send to adder using execl .
Ther data type corrected from int to char.
—————————-
revision 1.18
date: 2015/12/21 02:07:13;  author: root;  state: Exp;  lines: +1 -1
data type of arr is corrected.
arr is array of pipe.
It changes from char to int.
—————————-
revision 1.17
date: 2015/12/21 02:03:54;  author: root;  state: Exp;  lines: +62 -11
Server writes request to adder() for calculation.
It creates a pipe using pipe() and execl()
It reads result from adder() after calculation.
—————————-
revision 1.16
date: 2015/12/21 01:31:12;  author: root;  state: Exp;  lines: +5 -3
Server reading request and client writing request.
—————————-
revision 1.15
date: 2015/12/21 01:14:24;  author: root;  state: Exp;  lines: +1 -1
wrfifo open in read mode.
—————————-
revision 1.14
date: 2015/12/21 01:12:55;  author: root;  state: Exp;  lines: +1 -0
*** empty log message ***
—————————-
revision 1.13
date: 2015/12/21 01:07:00;  author: root;  state: Exp;  lines: +2 -2
open() command given to requestfifo()
—————————-
revision 1.12
date: 2015/12/21 01:01:40;  author: root;  state: Exp;  lines: +1 -1
sleep changes from 2 to 10.
—————————-
revision 1.11
date: 2015/12/21 00:04:48;  author: root;  state: Exp;  lines: +1 -1
*** empty log message ***
—————————-
revision 1.10
date: 2015/12/21 00:03:10;  author: root;  state: Exp;  lines: +1 -1
*** empty log message ***
—————————-
revision 1.9
date: 2015/12/20 23:57:01;  author: root;  state: Exp;  lines: +3 -3
A character is read from fifo.
—————————-
revision 1.8
date: 2015/12/20 23:53:41;  author: root;  state: Exp;  lines: +1 -1
mode changes from 666 to 777.
—————————-
revision 1.7
date: 2015/12/20 23:46:29;  author: root;  state: Exp;  lines: +1 -1
mode of requestfifo is corrected.
—————————-
revision 1.6
date: 2015/12/20 23:41:16;  author: root;  state: Exp;  lines: +1 -0
sleep(2) is given before read.
—————————-
revision 1.5
date: 2015/12/20 23:31:17;  author: root;  state: Exp;  lines: +1 -1
*** empty log message ***
—————————-
revision 1.4
date: 2015/12/20 23:26:07;  author: root;  state: Exp;  lines: +2 -2
Spelling mistake corrected
acces changes to access()
—————————-
revision 1.3
date: 2015/12/20 23:23:11;  author: root;  state: Exp;  lines: +1 -1
; mistake.
—————————-
revision 1.2
date: 2015/12/20 23:22:31;  author: root;  state: Exp;  lines: +2 -2
*** empty log message ***
—————————-
revision 1.1
date: 2015/12/20 23:12:38;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: request.h,v
Working file: request.h
head: 1.1
branch:
locks: strict
root: 1.1
access list:
symbolic names:
keyword substitution: kv
total revisions: 1;    selected revisions: 1
description:
It contains structure of request.
—————————-
revision 1.1    locked by: root;
date: 2015/12/20 20:01:44;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: adder.c,v
Working file: adder.c
head: 1.4
branch:
locks: strict
root: 1.4
access list:
symbolic names:
keyword substitution: kv
total revisions: 4;    selected revisions: 4
description:
A function for adding obj1 and obj2 which is contained in request received.
—————————-
revision 1.4    locked by: root;
date: 2015/12/20 21:52:27;  author: root;  state: Exp;  lines: +4 -4
Printing changes.
—————————-
revision 1.3
date: 2015/12/20 21:32:16;  author: root;  state: Exp;  lines: +1 -0
Printing mistake corrected.
—————————-
revision 1.2
date: 2015/12/20 21:22:32;  author: root;  state: Exp;  lines: +12 -4
Result is sent to server.
—————————-
revision 1.1
date: 2015/12/20 21:06:23;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: client1.c,v
Working file: client1.c
head: 1.13
branch:
locks: strict
root: 1.13
access list:
symbolic names:
keyword substitution: kv
total revisions: 13;    selected revisions: 13
description:
request.h , stdio.h, fcntl.h included.
argc has 3 arguments
argv has rfdp,wfdp.
Client writes the message.
—————————-
revision 1.13    locked by: root;
date: 2015/12/20 21:52:27;  author: root;  state: Exp;  lines: +9 -12
Printing Changes
—————————-
revision 1.12
date: 2015/12/20 21:46:04;  author: root;  state: Exp;  lines: +2 -2
obj1 and obj2 value changes
—————————-
revision 1.11
date: 2015/12/20 21:43:02;  author: root;  state: Exp;  lines: +1 -1
Printing change.
—————————-
revision 1.10
date: 2015/12/20 21:41:10;  author: root;  state: Exp;  lines: +13 -2
Client reading result from server
—————————-
revision 1.9
date: 2015/12/20 20:50:38;  author: root;  state: Exp;  lines: +1 -1
Request printed.
—————————-
revision 1.8
date: 2015/12/20 20:48:04;  author: root;  state: Exp;  lines: +1 -1
Request sent
—————————-
revision 1.7
date: 2015/12/20 20:41:57;  author: root;  state: Exp;  lines: +1 -1
argv changed to argv[]
—————————-
revision 1.6
date: 2015/12/20 20:40:43;  author: root;  state: Exp;  lines: +5 -5
*** empty log message ***
—————————-
revision 1.5
date: 2015/12/20 20:38:04;  author: root;  state: Exp;  lines: +1 -1
*** empty log message ***
—————————-
revision 1.4
date: 2015/12/20 20:33:54;  author: root;  state: Exp;  lines: +1 -2
Debugging
—————————-
revision 1.3
date: 2015/12/20 20:32:04;  author: root;  state: Exp;  lines: +2 -1
argc is printed.
—————————-
revision 1.2
date: 2015/12/20 20:27:40;  author: root;  state: Exp;  lines: +1 -0
print statement at starting is added.
—————————-
revision 1.1
date: 2015/12/20 19:55:46;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: client2.c,v
Working file: client2.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 requests for subtration from server.
—————————-
revision 1.1    locked by: root;
date: 2015/12/20 22:11:46;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: client3.c,v
Working file: client3.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 is function for multiplication.
—————————-
revision 1.1    locked by: root;
date: 2015/12/20 22:29:00;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: multiplier.c,v
Working file: multiplier.c
head: 1.1
branch:
locks: strict
root: 1.1
access list:
symbolic names:
keyword substitution: kv
total revisions: 1;    selected revisions: 1
description:
Function for multiplier
—————————-
revision 1.1    locked by: root;
date: 2015/12/20 22:09:30;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: server.c,v
Working file: server.c
head: 1.29
branch:
locks: strict
root: 1.29
access list:
symbolic names:
keyword substitution: kv
total revisions: 29;    selected revisions: 29
description:
Server includes header.h,request.h
server creates a pipe(Half duplex)
Server then creates a child.
child is replaced by client.
When pipe(arr) is called , arr[0] has read file descriptor and arr[1]
has write file descriptor.
rfdp and wfdp are passed to child.
server reads the  data written by pipe.
—————————-
revision 1.29    locked by: root;
date: 2015/12/20 22:21:29;  author: root;  state: Exp;  lines: +1 -1
*** empty log message ***
—————————-
revision 1.28
date: 2015/12/20 22:19:00;  author: root;  state: Exp;  lines: +1 -1
*** empty log message ***
—————————-
revision 1.27
date: 2015/12/20 22:16:05;  author: root;  state: Exp;  lines: +1 -1
*** empty log message ***
—————————-
revision 1.26
date: 2015/12/20 22:14:36;  author: root;  state: Exp;  lines: +1 -2
*** empty log message ***
—————————-
revision 1.25
date: 2015/12/20 22:07:12;  author: root;  state: Exp;  lines: +18 -2
Subtractor and multiplier and adder are available operations.
—————————-
revision 1.24
date: 2015/12/20 21:56:07;  author: root;  state: Exp;  lines: +2 -2
Printing changes.
—————————-
revision 1.23
date: 2015/12/20 21:54:17;  author: root;  state: Exp;  lines: +2 -2
Printing changes.
—————————-
revision 1.22
date: 2015/12/20 21:44:51;  author: root;  state: Exp;  lines: +3 -3
Printing change
—————————-
revision 1.21
date: 2015/12/20 21:42:22;  author: root;  state: Exp;  lines: +2 -2
count4 declared.
—————————-
revision 1.20
date: 2015/12/20 21:41:10;  author: root;  state: Exp;  lines: +12 -2
Server writing result to client.
—————————-
revision 1.19
date: 2015/12/20 21:32:16;  author: root;  state: Exp;  lines: +2 -2
*** empty log message ***
—————————-
revision 1.18
date: 2015/12/20 21:30:26;  author: root;  state: Exp;  lines: +12 -5
server read the result and print it.
—————————-
revision 1.17
date: 2015/12/20 21:16:59;  author: root;  state: Exp;  lines: +2 -2
logical error
—————————-
revision 1.16
date: 2015/12/20 21:12:16;  author: root;  state: Exp;  lines: +1 -0
ce
—————————-
revision 1.15
date: 2015/12/20 21:07:57;  author: root;  state: Exp;  lines: +1 -1
fret2 is declared.
—————————-
revision 1.14
date: 2015/12/20 21:06:23;  author: root;  state: Exp;  lines: +35 -5
adder is callled using another pipe and fork.
—————————-
revision 1.13
date: 2015/12/20 20:52:39;  author: root;  state: Exp;  lines: +1 -1
*** empty log message ***
—————————-
revision 1.12
date: 2015/12/20 20:51:47;  author: root;  state: Exp;  lines: +1 -1
*** empty log message ***
—————————-
revision 1.11
date: 2015/12/20 20:50:38;  author: root;  state: Exp;  lines: +1 -1
Request printed.
—————————-
revision 1.10
date: 2015/12/20 20:48:04;  author: root;  state: Exp;  lines: +1 -1
Request received.
—————————-
revision 1.9
date: 2015/12/20 20:44:58;  author: root;  state: Exp;  lines: +2 -2
*** empty log message ***
—————————-
revision 1.8
date: 2015/12/20 20:29:14;  author: root;  state: Exp;  lines: +2 -1
ret=wait()
—————————-
revision 1.7
date: 2015/12/20 20:27:40;  author: root;  state: Exp;  lines: +2 -1
print statement at starting is added.
—————————-
revision 1.6
date: 2015/12/20 20:24:08;  author: root;  state: Exp;  lines: +1 -1
client1 is replaced by client (name change in execl).
—————————-
revision 1.5
date: 2015/12/20 20:22:45;  author: root;  state: Exp;  lines: +4 -1
*** empty log message ***
—————————-
revision 1.4
date: 2015/12/20 20:20:38;  author: root;  state: Exp;  lines: +1 -1
Pipe is created before fork.
—————————-
revision 1.3
date: 2015/12/20 20:19:46;  author: root;  state: Exp;  lines: +4 -2
Some print statements added.
—————————-
revision 1.2
date: 2015/12/20 20:16:56;  author: root;  state: Exp;  lines: +1 -0
*** empty log message ***
—————————-
revision 1.1
date: 2015/12/20 19:55:46;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: subtractor.c,v
Working file: subtractor.c
head: 1.1
branch:
locks: strict
root: 1.1
access list:
symbolic names:
keyword substitution: kv
total revisions: 1;    selected revisions: 1
description:
Function for subtraction.
—————————-
revision 1.1    locked by: root;
date: 2015/12/20 22:09:30;  author: root;  state: Exp;
Initial revision
=============================================================================

int main()
{
int *a,n,i,j,c,temp;
printf(“Enter number of numbers you want to sort?\n”);
scanf(“%d”,&n);
a = input(a,n);
a = sort(a,n);
display(a,n);
}
int * input(int *a,int n)
{
int i;
printf(“Enter %d elements\n”,n);
a = (int *)malloc(sizeof(int)*n);
for(i=0;i<n;i++)
scanf(“%d”,&a[i]);
return a;
}
void display(int*a,int n )
{
int i;
printf(“Sorted list\n”);
for(i=0;i<n;i++)
printf(“%d\n”,a[i]);
}

int * sort(int *a,int n)
{    int i,j,temp;
if(n==0)
return a;
for(i=0;i<n-1;i++)
if(*(a+i)>*(a+i+1))
{
temp = *(a+i);
*(a+i) = *(a+i+1);
*(a+i+1) = temp;
}
sort(a,n-1);
}

RCS file: prototypes.h,v
Working file: prototypes.h
head: 1.7
branch:
locks: strict
root: 1.7
access list:
symbolic names:
keyword substitution: kv
total revisions: 7;    selected revisions: 7
description:
All Prototypes are defined.
—————————-
revision 1.7    locked by: root;
date: 2015/07/08 16:13:29;  author: root;  state: Exp;  lines: +2 -2
prototypes of fileread() and readma() are changed.
—————————-
revision 1.6
date: 2015/07/08 16:00:04;  author: root;  state: Exp;  lines: +1 -1
prototype of decompress is changed.
fd is removed.
—————————-
revision 1.5
date: 2015/07/08 15:13:00;  author: root;  state: Exp;  lines: +1 -1
find_pos() is included.
—————————-
revision 1.4
date: 2015/07/08 14:47:12;  author: root;  state: Exp;  lines: +1 -1
*** empty log message ***
—————————-
revision 1.3
date: 2015/07/08 14:01:48;  author: root;  state: Exp;  lines: +1 -1
*** empty log message ***
—————————-
revision 1.2
date: 2015/07/08 14:00:40;  author: root;  state: Exp;  lines: +2 -2
*** empty log message ***
—————————-
revision 1.1
date: 2015/07/08 13:35:11;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: mddc.c,v
Working file: mddc.c
head: 1.6
branch:
locks: strict
root: 1.6
access list:
symbolic names:
keyword substitution: kv
total revisions: 6;    selected revisions: 6
description:
file1 is compressed file
file2 is encryption key.
both files are open and read.
ndc and cl are found.
decompress() fn. is called.
—————————-
revision 1.6    locked by: root;
date: 2015/07/08 17:55:59;  author: root;  state: Exp;  lines: +1 -1
*** empty log message ***
—————————-
revision 1.5
date: 2015/07/08 16:28:38;  author: root;  state: Exp;  lines: +1 -1
characteris recovered.
—————————-
revision 1.4
date: 2015/07/08 16:12:57;  author: root;  state: Exp;  lines: +7 -12
comand line arguments are removed.
fileread() and readma() are redefined.
—————————-
revision 1.3
date: 2015/07/08 15:59:32;  author: root;  state: Exp;  lines: +1 -1
prototype of decompress is changed.
now,fd is not opening here.
—————————-
revision 1.2
date: 2015/07/08 14:51:55;  author: root;  state: Exp;  lines: +1 -1
*** empty log message ***
—————————-
revision 1.1
date: 2015/07/08 14:48:57;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: decompression.c,v
Working file: decompression.c
head: 1.11
branch:
locks: strict
root: 1.11
access list:
symbolic names:
keyword substitution: kv
total revisions: 11;    selected revisions: 11
description:
decompression() is defined.
using ndc ,cl is find out.
cl is used to call decompress2(),decompress3(),decompress4(),decompress5(),decompress6() or decompress7() function.
—————————-
revision 1.11    locked by: root;
date: 2015/07/08 16:13:55;  author: root;  state: Exp;  lines: +1 -1
file is read here with ne prototypes excluding command line argument.
—————————-
revision 1.10
date: 2015/07/08 16:01:46;  author: root;  state: Exp;  lines: +1 -1
fd is now declared also.
—————————-
revision 1.9
date: 2015/07/08 16:00:27;  author: root;  state: Exp;  lines: +2 -1
fd is now declared here.
file is opened here for reading.
—————————-
revision 1.8
date: 2015/07/08 15:44:33;  author: root;  state: Exp;  lines: +1 -1
*** empty log message ***
—————————-
revision 1.7
date: 2015/07/08 15:35:47;  author: root;  state: Exp;  lines: +1 -1
*** empty log message ***
—————————-
revision 1.6
date: 2015/07/08 15:13:12;  author: root;  state: Exp;  lines: +1 -1
decompress4() is being developed.
—————————-
revision 1.5
date: 2015/07/08 14:59:14;  author: root;  state: Exp;  lines: +2 -1
*** empty log message ***
—————————-
revision 1.4
date: 2015/07/08 14:56:11;  author: root;  state: Exp;  lines: +1 -1
decompress4() is called.
—————————-
revision 1.3
date: 2015/07/08 14:53:59;  author: root;  state: Exp;  lines: +14 -14
decompress keyword is usedinstead of compress()
—————————-
revision 1.2
date: 2015/07/08 14:39:16;  author: root;  state: Exp;  lines: +1 -1
*** empty log message ***
—————————-
revision 1.1
date: 2015/07/08 13:24:08;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: decompress2.c,v
Working file: decompress2.c
head: 1.1
branch:
locks: strict
root: 1.1
access list:
symbolic names:
keyword substitution: kv
total revisions: 1;    selected revisions: 1
description:
decompress2() is defined .
Macro is printed.
—————————-
revision 1.1    locked by: root;
date: 2015/07/08 13:24:08;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: decompress3.c,v
Working file: decompress3.c
head: 1.1
branch:
locks: strict
root: 1.1
access list:
symbolic names:
keyword substitution: kv
total revisions: 1;    selected revisions: 1
description:
decompress3() is defined.
macro is used to print function name .
—————————-
revision 1.1    locked by: root;
date: 2015/07/08 13:24:08;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: decompress4.c,v
Working file: decompress4.c
head: 1.49
branch:
locks: strict
root: 1.49
access list:
symbolic names:
keyword substitution: kv
total revisions: 49;    selected revisions: 49
description:
decompress4() is defined.
only name of fn. is printed using macro __func__
—————————-
revision 1.49    locked by: root;
date: 2015/07/09 01:31:38;  author: root;  state: Exp;  lines: +3 -3
*** empty log message ***
—————————-
revision 1.48
date: 2015/07/08 21:47:52;  author: root;  state: Exp;  lines: +2 -2
*** empty log message ***
—————————-
revision 1.47
date: 2015/07/08 21:46:54;  author: root;  state: Exp;  lines: +4 -5
*** empty log message ***
—————————-
revision 1.46
date: 2015/07/08 21:43:14;  author: root;  state: Exp;  lines: +2 -2
*** empty log message ***
—————————-
revision 1.45
date: 2015/07/08 21:41:03;  author: root;  state: Exp;  lines: +2 -1
*** empty log message ***
—————————-
revision 1.44
date: 2015/07/08 21:39:45;  author: root;  state: Exp;  lines: +1 -1
*** empty log message ***
—————————-
revision 1.43
date: 2015/07/08 21:39:20;  author: root;  state: Exp;  lines: +7 -4
*** empty log message ***
—————————-
revision 1.42
date: 2015/07/08 21:35:58;  author: root;  state: Exp;  lines: +1 -1
*** empty log message ***
—————————-
revision 1.41
date: 2015/07/08 21:26:35;  author: root;  state: Exp;  lines: +2 -2
*** empty log message ***
—————————-
revision 1.40
date: 2015/07/08 21:20:53;  author: root;  state: Exp;  lines: +2 -2
*** empty log message ***
—————————-
revision 1.39
date: 2015/07/08 21:13:05;  author: root;  state: Exp;  lines: +1 -1
*** empty log message ***
—————————-
revision 1.38
date: 2015/07/08 21:12:43;  author: root;  state: Exp;  lines: +1 -1
*** empty log message ***
—————————-
revision 1.37
date: 2015/07/08 21:10:53;  author: root;  state: Exp;  lines: +1 -1
*** empty log message ***
—————————-
revision 1.36
date: 2015/07/08 20:21:48;  author: root;  state: Exp;  lines: +1 -1
*** empty log message ***
—————————-
revision 1.35
date: 2015/07/08 20:02:57;  author: root;  state: Exp;  lines: +4 -0
Brek on c=15
—————————-
revision 1.34
date: 2015/07/08 20:01:31;  author: root;  state: Exp;  lines: +1 -1
breaking condition is given.
—————————-
revision 1.33
date: 2015/07/08 18:21:10;  author: root;  state: Exp;  lines: +2 -1
*** empty log message ***
—————————-
revision 1.32
date: 2015/07/08 18:10:01;  author: root;  state: Exp;  lines: +1 -1
*** empty log message ***
—————————-
revision 1.31
date: 2015/07/08 18:07:49;  author: root;  state: Exp;  lines: +8 -2
2 files are written at a time
—————————-
revision 1.30
date: 2015/07/08 17:34:04;  author: root;  state: Exp;  lines: +3 -3
Unnecesory printf statements are removed.
—————————-
revision 1.29
date: 2015/07/08 17:32:31;  author: root;  state: Exp;  lines: +1 -0
*** empty log message ***
—————————-
revision 1.28
date: 2015/07/08 17:28:53;  author: root;  state: Exp;  lines: +1 -1
*** empty log message ***
—————————-
revision 1.27
date: 2015/07/08 16:41:21;  author: root;  state: Exp;  lines: +1 -1
c is again made const instead of comst char
—————————-
revision 1.26
date: 2015/07/08 16:40:21;  author: root;  state: Exp;  lines: +3 -2
c is made comst char type instead of char.
—————————-
revision 1.25
date: 2015/07/08 16:36:51;  author: root;  state: Exp;  lines: +1 -1
*** empty log message ***
—————————-
revision 1.24
date: 2015/07/08 16:25:55;  author: root;  state: Exp;  lines: +2 -1
*** empty log message ***
—————————-
revision 1.23
date: 2015/07/08 16:23:31;  author: root;  state: Exp;  lines: +1 -1
*** empty log message ***
—————————-
revision 1.22
date: 2015/07/08 15:56:24;  author: root;  state: Exp;  lines: +1 -1
*** empty log message ***
—————————-
revision 1.21
date: 2015/07/08 15:54:46;  author: root;  state: Exp;  lines: +1 -0
*** empty log message ***
—————————-
revision 1.20
date: 2015/07/08 15:53:26;  author: root;  state: Exp;  lines: +1 -1
no. of times loop run is printed.
—————————-
revision 1.19
date: 2015/07/08 15:47:59;  author: root;  state: Exp;  lines: +2 -1
*** empty log message ***
—————————-
revision 1.18
date: 2015/07/08 15:46:44;  author: root;  state: Exp;  lines: +1 -2
*** empty log message ***
—————————-
revision 1.17
date: 2015/07/08 15:45:18;  author: root;  state: Exp;  lines: +1 -1
*** empty log message ***
—————————-
revision 1.16
date: 2015/07/08 15:44:36;  author: root;  state: Exp;  lines: +1 -1
/
—————————-
revision 1.15
date: 2015/07/08 15:35:02;  author: root;  state: Exp;  lines: +1 -1
*** empty log message ***
—————————-
revision 1.14
date: 2015/07/08 15:33:57;  author: root;  state: Exp;  lines: +1 -1
*** empty log message ***
—————————-
revision 1.13
date: 2015/07/08 15:32:40;  author: root;  state: Exp;  lines: +1 -0
*** empty log message ***
—————————-
revision 1.12
date: 2015/07/08 15:31:15;  author: root;  state: Exp;  lines: +3 -4
*** empty log message ***
—————————-
revision 1.11
date: 2015/07/08 15:30:02;  author: root;  state: Exp;  lines: +1 -1
*** empty log message ***
—————————-
revision 1.10
date: 2015/07/08 15:29:16;  author: root;  state: Exp;  lines: +2 -1
*** empty log message ***
—————————-
revision 1.9
date: 2015/07/08 15:27:41;  author: root;  state: Exp;  lines: +1 -1
*** empty log message ***
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revision 1.8
date: 2015/07/08 15:21:14;  author: root;  state: Exp;  lines: +2 -1
limiting condition inside loop is defined.
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revision 1.7
date: 2015/07/08 15:18:39;  author: root;  state: Exp;  lines: +1 -1
argument of atoi() is changed to pointer.
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revision 1.6
date: 2015/07/08 15:15:16;  author: root;  state: Exp;  lines: +2 -2
redeclaration of fd is removed
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revision 1.5
date: 2015/07/08 15:13:29;  author: root;  state: Exp;  lines: +19 -1
find_pos() is called to find unique character.
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revision 1.4
date: 2015/07/08 14:59:54;  author: root;  state: Exp;  lines: +1 -1
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revision 1.3
date: 2015/07/08 14:59:16;  author: root;  state: Exp;  lines: +0 -2
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revision 1.2
date: 2015/07/08 14:56:23;  author: root;  state: Exp;  lines: +3 -49
macro is printed.
it is now removed code of compress4()
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revision 1.1
date: 2015/07/08 13:24:08;  author: root;  state: Exp;
Initial revision
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RCS file: decompress5.c,v
Working file: decompress5.c
head: 1.1
branch:
locks: strict
root: 1.1
access list:
symbolic names:
keyword substitution: kv
total revisions: 1;    selected revisions: 1
description:
decompress5() is defined.
Name of fn. is printed using __func__ macro.
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revision 1.1    locked by: root;
date: 2015/07/08 13:24:08;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: decompress6.c,v
Working file: decompress6.c
head: 1.1
branch:
locks: strict
root: 1.1
access list:
symbolic names:
keyword substitution: kv
total revisions: 1;    selected revisions: 1
description:
decompress6() is defined.
name of fn. is printed using __func__
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revision 1.1    locked by: root;
date: 2015/07/08 13:24:08;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: decompress7.c,v
Working file: decompress7.c
head: 1.1
branch:
locks: strict
root: 1.1
access list:
symbolic names:
keyword substitution: kv
total revisions: 1;    selected revisions: 1
description:
decompress7() has been defined here.
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revision 1.1    locked by: root;
date: 2015/07/08 13:24:08;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: find_pos.c,v
Working file: find_pos.c
head: 1.15
branch:
locks: strict
root: 1.15
access list:
symbolic names:
keyword substitution: kv
total revisions: 15;    selected revisions: 15
description:
Position is find out of the character in master array.
integer corresponding to unique character is returned.
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revision 1.15    locked by: root;
date: 2015/07/08 18:11:12;  author: root;  state: Exp;  lines: +2 -2
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revision 1.14
date: 2015/07/08 17:53:37;  author: root;  state: Exp;  lines: +1 -1
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revision 1.13
date: 2015/07/08 17:42:53;  author: root;  state: Exp;  lines: +1 -1
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revision 1.12
date: 2015/07/08 17:35:52;  author: root;  state: Exp;  lines: +3 -2
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revision 1.11
date: 2015/07/08 17:32:33;  author: root;  state: Exp;  lines: +2 -13
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revision 1.10
date: 2015/07/08 16:43:33;  author: root;  state: Exp;  lines: +1 -1
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revision 1.9
date: 2015/07/08 16:33:36;  author: root;  state: Exp;  lines: +2 -0
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revision 1.8
date: 2015/07/08 16:28:51;  author: root;  state: Exp;  lines: +1 -2
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revision 1.7
date: 2015/07/08 15:51:44;  author: root;  state: Exp;  lines: +1 -1
Compilation error is removed.
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revision 1.6
date: 2015/07/08 15:50:42;  author: root;  state: Exp;  lines: +5 -1
prototypes.h is included.
ch is nowassigned the character value .
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revision 1.5
date: 2015/07/08 15:44:40;  author: root;  state: Exp;  lines: +2 -2
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revision 1.4
date: 2015/07/08 15:20:12;  author: root;  state: Exp;  lines: +1 -1
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revision 1.3
date: 2015/07/08 15:16:50;  author: root;  state: Exp;  lines: +1 -1
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revision 1.2
date: 2015/07/08 15:13:50;  author: root;  state: Exp;  lines: +4 -6
Position corresponding to character is matched.
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revision 1.1
date: 2015/07/08 13:24:08;  author: root;  state: Exp;
Initial revision
=============================================================================