#include <inttypes.h>
#include <stdlib.h>

#if __INTMAX_WIDTH__ == __LONG_WIDTH__
# define __strtoumax strtoul
#elif __INTMAX_WIDTH__ == __LONG_LONG_WIDTH__
# define __strtoumax strtoull
#else
# error How is uintmax_t neither unsigned long nor unsigned long long?
#endif

uintmax_t strtoumax(char const * restrict ptr, char ** restrict endptr,
	int base)
{
	return __strtoumax(ptr, endptr, base);
}