Proper way to initialize a string in C

Question

I\'ve seen people\'s code as:

char *str = NULL;

and I\'ve seen this is as well,

char *str;

I\'m wonder, what

Answer 1

It depends entirely on how you're going to use it. In the following, it makes more sense not to initialize the variable:

int count;
while ((count = function()) > 0)
{
}