File: strdup.c

package info (click to toggle)
binutils 2.40-2
  • links: PTS, VCS
  • area: main
  • in suites: bookworm, bookworm-backports
  • size: 364,620 kB
  • sloc: ansic: 1,286,348; asm: 715,071; cpp: 215,388; exp: 74,960; makefile: 69,766; sh: 23,124; yacc: 15,309; lisp: 13,258; perl: 12,204; lex: 1,712; ada: 1,681; pascal: 1,446; cs: 879; java: 443; sed: 195; python: 154; xml: 95; awk: 25
file content (27 lines) | stat: -rw-r--r-- 572 bytes parent folder | download | duplicates (23) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
 
/*

@deftypefn Supplemental char* strdup (const char *@var{s})

Returns a pointer to a copy of @var{s} in memory obtained from
@code{malloc}, or @code{NULL} if insufficient memory was available.

@end deftypefn

*/

#include <ansidecl.h>
#include <stddef.h>

extern size_t	strlen (const char*);
extern void *malloc (size_t);
extern void *memcpy (void *, const void *, size_t);

char *
strdup(const char *s)
{
  size_t len = strlen (s) + 1;
  char *result = (char*) malloc (len);
  if (result == (char*) 0)
    return (char*) 0;
  return (char*) memcpy (result, s, len);
}