wcsdup() not defined 1

[JediDan]

Hello all,

I'm working with wide characters and need to use the wcsdup function to replace some code that was using normal characters and the strdup function.

I'm including <wchar.h> and have had no problems with the wchar_t type itself nor with wcscpy, but when I try to compile when using wcsdup, I get: 'wcsdup' undeclared.

If I look inside wchar.h, I can see wcsdup declared as an extern function.

I realize the solution to this problem may be platform, compiler dependent, but I would appreciate any help at all.
I'm running on Red Hat Enterprise with gcc 2.96 (yes, it's old, and out of my control).

Thanks,

Dan

 

[chipperMDW]

Is the wcsdup declaration #ifdefed out? With what?

I'll bet you need to do:

#define _GNU_SOURCE
#include <wchar.h>

to make the declaration visible to your code.

 

[JediDan]

It was __USE_GNU, but you got me in the right direction. Thx