Hi guys, im working on my project again and I found an interesting error. Ive already solved what it is I just need help finding another way of doing what I want. Basicly im passing a pointer around for a string that I call name_ptr. char name[16]; char *name_ptr = name; now in a function that i passed the pointer of name to im trying to do an fgets on it. fgets(name_ptr, size(name_ptr), stdin); Now when I do this, if i use name_ptr as the sizeof it returns what ever the sizeof the datatype which is a pointer, basicly not really more then 2 most times. and if I do *name_ptr theres no data in name_ptr yet so its always zero. Is there any way to pass to sizeof the actuall string size of 16chars with out declaring a fixed string in side of the function thats doing this fgets?

Quote:Original post by Xloner12
Now when I do this, if i use name_ptr as the sizeof it returns what ever the sizeof the datatype which is a pointer, basicly not really more then 2 most times. and if I do *name_ptr theres no data in name_ptr yet so its always zero. Is there any way to pass to sizeof the actuall string size of 16chars with out declaring a fixed string in side of the function thats doing this fgets?

Nope. If you're using C++, use std::string or std::vector or std::tr1::array. If you're in C, you need to pass the size of the array around explicitly when you pass the pointer.

If I go with the null at start and end of the array is there any draw backs, because I like that idea.

Nvm, I realized that when I fill up the string the point is still only pointing to that first char slot and not the entire string. I'll just pass around the int equivlent for the size of the string.

Well cool. Thanks guys.