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27 lines
562 B
27 lines
562 B
/* |
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@deftypefn Supplemental char* strdup (const char *@var{s}) |
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Returns a pointer to a copy of @var{s} in memory obtained from |
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@code{malloc}, or @code{NULL} if insufficient memory was available. |
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@end deftypefn |
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*/ |
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#include <ansidecl.h> |
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#include <stddef.h> |
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extern size_t strlen (const char*); |
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extern PTR malloc (size_t); |
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extern PTR memcpy (PTR, const PTR, size_t); |
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char * |
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strdup(const char *s) |
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{ |
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size_t len = strlen (s) + 1; |
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char *result = (char*) malloc (len); |
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if (result == (char*) 0) |
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return (char*) 0; |
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return (char*) memcpy (result, s, len); |
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}
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