3 @deftypefn Supplemental char* strdup (const char *@var{s})
5 Returns a pointer to a copy of @var{s} in memory obtained from
6 @code{malloc}, or @code{NULL} if insufficient memory was available.
15 extern size_t strlen (const char*);
16 extern PTR
malloc (size_t);
17 extern PTR
memcpy (PTR
, const PTR
, size_t);
22 size_t len
= strlen (s
) + 1;
23 char *result
= (char*) malloc (len
);
24 if (result
== (char*) 0)
26 return (char*) memcpy (result
, s
, len
);
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