Thread: Realloc Problem

Hi everyone,

I know its a basic problem, but realloc doesnt seem to be resizing my array to the right size.

Code:

char* nickBuf=NULL;
int reallocLength = 1024 + nickLength +1;
              printf("size of reallocLength is: %d\n", reallocLength);		
void *_tmp = realloc(nickBuf, reallocLength); 
nickBuf=(char*)_tmp;
              printf("size of bufPlusNick inside if loop is: %d\n", sizeof(nickBuf));
              //nickBuf is freed later on in code

various printf statements i have have printed out the following

size of reallocLength is: 2045
size of nickBuf inside if loop is: 4
size of nickLength is: 1020
size of nickBuf is: 4

im unsure how realloc can resize the array to only 4, when an int of 2045 is given as the argument

thanks for any help

Question 7.28

Size of nickBuf returns 4 because you are asking for the size of the pointer.