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#include <wchar.h>
#include <stdlib.h>
#include <inttypes.h>
#include <errno.h>
#include <limits.h>
unsigned long wcstoul(const wchar_t *s, wchar_t **p, int base)
{
intmax_t x;
if (sizeof(intmax_t) == sizeof(long))
return wcstoumax(s, p, base);
x = wcstoimax(s, p, base);
if (-x > ULONG_MAX || x > ULONG_MAX) {
errno = ERANGE;
return ULONG_MAX;
}
return x;
}
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