[thirdparty/gcc.git] / libiberty / xstrdup.c

/* xstrdup.c -- Duplicate a string in memory, using xmalloc.
   This trivial function is in the public domain.
   Ian Lance Taylor, Cygnus Support, December 1995.  */

/*

@deftypefn Replacement char* xstrdup (const char *@var{s})

Duplicates a character string without fail, using @code{xmalloc} to
obtain memory.

@end deftypefn

*/

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <sys/types.h>
#ifdef HAVE_STRING_H
#include <string.h>
#else
# ifdef HAVE_STRINGS_H
#  include <strings.h>
# endif
#endif
#include "ansidecl.h"
#include "libiberty.h"

char *
xstrdup (const char *s)
{
  register size_t len = strlen (s) + 1;
  register char *ret = XNEWVEC (char, len);
  return (char *) memcpy (ret, s, len);
}
Commit	Line	Data
6599da04 JM	1	/* xstrdup.c -- Duplicate a string in memory, using xmalloc.
	2	This trivial function is in the public domain.
	3	Ian Lance Taylor, Cygnus Support, December 1995. */
	4
aaa5f039 DD	5	/*
	6
	7	@deftypefn Replacement char* xstrdup (const char *@var{s})
	8
	9	Duplicates a character string without fail, using @code{xmalloc} to
	10	obtain memory.
	11
	12	@end deftypefn
	13
	14	*/
	15
7e4311a3 KG	16	#ifdef HAVE_CONFIG_H
	17	#include "config.h"
	18	#endif
0c9e8424	19	#include <sys/types.h>
7e4311a3 KG	20	#ifdef HAVE_STRING_H
7e4311a3 KG	21	#include <string.h>
bb99744f KG	22	#else
	23	# ifdef HAVE_STRINGS_H
	24	# include <strings.h>
	25	# endif
7e4311a3	26	#endif
6599da04 JM	27	#include "ansidecl.h"
	28	#include "libiberty.h"
	29
	30	char *
7a17ef5e	31	xstrdup (const char *s)
6599da04	32	{
7e4311a3	33	register size_t len = strlen (s) + 1;
d7cf8390	34	register char *ret = XNEWVEC (char, len);
bb99744f	35	return (char *) memcpy (ret, s, len);
6599da04	36	}