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#include <stdlib.h>
#include <inttypes.h>
#include <errno.h>
#include <limits.h>
unsigned long long strtoull(const char *s, char **p, int base)
{
intmax_t x;
if (sizeof(intmax_t) == sizeof(long long))
return strtoumax(s, p, base);
x = strtoimax(s, p, base);
if (-x > ULLONG_MAX || x > ULLONG_MAX) {
errno = ERANGE;
return ULLONG_MAX;
}
return x;
}
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