Compiler error: warning: implicit declaration of function 'strdup'

[TalonStriker]

Hi guys,

When I compile this code, I'm getting the following error:
warning: implicit declaration of function 'strdup'

I've included <string.h> and <wchar.h> so I shouldn't be getting the error right?

The line of code in question is:

//some declarations inside a static function
simple_path = strdup(path);
 

The part thats confusing me is that I use strdup in other parts of my program, but the compiler isn't complaining about that.

Any help is appreciated.

Thanks

[Ganon11]

What variable types are path and simple_path?

[TalonStriker]

What variable types are path and simple_path?

Both are pointers to char.

[weaknessforcats]

Post the function. please.

[TalonStriker]

Post the function. please.

The function doesn't do anything special until that line... here it is

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <wchar.h>
 
/* some other functions*/
 
static Item * parse(Item * const root, Item * const curr, char * path)
{
    char *simple_path;
    char *a, *b;
    char temp[80] = {0};
    Item * true_item = NULL;
    int finished = 0;
 
    simple_path = strdup(path); //error here
//blah blah
 

[TalonStriker]

Actually, I need to clarify one thing. I mentioned in my original post that the compiler wasn't complaining about my other uses of strdup. I was incorrect, the compiler (gcc) seems to be assuming that the function is returning an int and is spitting out warnings about assigning an int to a pointer without casting.

However, the compiler isn't complaining about the other uses of functions in string.h