warning about __strndup

[Bruno Haible]

In glibc-2000-04-28, programs using 'strndup' get annoying warnings.

$ cat foo.c
#define _GNU_SOURCE /* so that <string.h> declares strndup */
#include <string.h>
char *call_strdup (char *s) { return strdup(s); }
char *call_strndup (char *s) { return strndup(s,4); }

$ gcc -O -S -Wall foo.c
foo.c: In function `call_strndup':
foo.c:4: warning: implicit declaration of function `__strndup'
foo.c:4: warning: pointer/integer type mismatch in conditional expression

Here is a fix:


2000-04-30  Bruno Haible  <haible@clisp.cons.org>

	* string/string.h: Add declaration of __strndup.

*** string/string.h.bak	Sun Apr 30 23:37:16 2000
--- string/string.h	Mon May  1 00:20:01 2000
***************
*** 120,125 ****
--- 120,127 ----
     resultant string is terminated even if no null terminator
     appears before STRING[N].  */
  #if defined __USE_GNU
+ extern char *__strndup (__const char *__string, size_t __n)
+      __THROW __attribute_malloc__;
  extern char *strndup (__const char *__string, size_t __n)
       __THROW __attribute_malloc__;
  #endif