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