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/*

@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

*/

char *

strdup(s)

     char *s;

{

    char *result = (char*)malloc(strlen(s) + 1);

    if (result == (char*)0)

        return (char*)0;

    strcpy(result, s);

    return result;

}