EmbLogic » Pankaj Suryawanshi

What is bss (Block Storage Start) ?

Pankaj Suryawanshi — Tue, 16 Aug 2016 19:14:21 +0000

The .bss segment stores all uninitialized global, static, and external variables (declared with extern keyword). Global, external, and static variable are by default initialized to zero. This section occupies no actual space in the object file. it is merely a place holder. uninitialized variables do not have to occupy any actual disk space in the object file.
The use of the term .bss to denote uninitialized data is universal. It Stands “Block Storage Start”.

Matrix Addition using 2D Array with Pointers

Pankaj Suryawanshi — Sun, 14 Aug 2016 19:39:04 +0000

#include
#include

int main()
{
int r,c,k;
printf(“enter the size of rows\n”);
scanf(“%d”,&r);
printf(“enter the size of columns\n”);
scanf(“%d”,&c);
int **a,**b,**d,i,j;
a=(int **)malloc(sizeof(int*)*3);
if(!a)
{
perror(“malloc”);
goto x;
}
for(i=0;i<3;i++)
*(a+i)=(int *)malloc(sizeof(int)*3);
if(!(*(a+i)))
{
perror("malloc");
goto x;
}
b=(int **)malloc(sizeof(int*)*3);
if(!b)
{
perror("malloc");
goto x;
}
for(i=0;i<3;i++)
*(b+i)=(int *)malloc(sizeof(int)*3);
if(!(*(b+i)))
{
perror("malloc");
goto x;
}
d=(int **)malloc(sizeof(int*)*3);
if(!d)
{
perror("malloc");
goto x;
}
for(i=0;i<3;i++)
*(d+i)=(int *)malloc(sizeof(int)*3);
if(!(*(d+i)))
{
perror("malloc");
goto x;
}

printf("enter the element of 1st matrix\n");
for(i=0;i {
for(j=0;j {
scanf("%d",*(a+i)+j);
}
}

printf("enter the element of 2nd matrix\n");
for(i=0;i {
for(j=0;j {
scanf("%d",*(b+i)+j);
}
}

printf("the element of 1st matrix\n");
for(i=0;i {
for(j=0;j {
printf("%d\t",*(*(a+i)+j));
}
printf("\n");
}

printf("\nthe element of 2nd matrix\n");
for(i=0;i {
for(j=0;j {
printf("%d\t",*(*(b+i)+j));
}
printf("\n");
}

for(i=0;i {

for(j=0;j

{
*((*(d+i)+j)) = *((*(a+i))+j) + *((*(b+i))+j);

}
}

printf("\naddition is\n");

for(i=0;i {
for(j=0;j

{
printf("%d\t",*((*(d+i))+j));
}
printf("\n");
}
return 0;
x:
return -1;
}

write a program for selection sort

Pankaj Suryawanshi — Wed, 03 Aug 2016 16:39:33 +0000

#include

int main()
{
int a[5];
int i,j,loc,smallest,temp;
printf(“enter array element”);
for(i=0;i<5;i++)
{
scanf(“%d”,&a[i]);
}
for(j=0;j<5;j++)
{
smallest=a[j];
for(i=j+1;i<5;i++)
{
if(a[i] {
smallest=a[i];
loc=i;
temp=a[j];
a[j]=a[loc];
a[loc]=temp;

}

}
printf(“sorted array is[%d]=%d\n”,j,a[j]);
}
return 0;
}