venuaccha

how to complile and execute a c pro in editplus

Can anyone tell me whether it is allowed to use a Semaphore in a Reentrant function.

Hi, I am trying to implement the sizeof() programe main() { int a,res; a = sizeOf(a); printf("size=5d\n",res); } int sizeOf( void var) { void *ptr; ptr = &var; return((char*)&ptr[1] - (char*)&ptr[0]); } But this is giving error , so plz check and correct it

I want to pass a 2D matrix to a function in C which modifies the elements of the matrix and the modifications should be effective in the calling function. How to achieve this in C.