ruby/missing/strtol.c

28 строки
462 B
C

/* public domain rewrite of strtol(3) */
#include "ruby/missing.h"
#include <ctype.h>
long
strtol(const char *nptr, char **endptr, int base)
{
long result;
const char *p = nptr;
while (isspace(*p)) {
p++;
}
if (*p == '-') {
p++;
result = -strtoul(p, endptr, base);
}
else {
if (*p == '+') p++;
result = strtoul(p, endptr, base);
}
if (endptr != 0 && *endptr == p) {
*endptr = (char *)nptr;
}
return result;
}