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229a469f028e991fd3f74a220d31d01dee857d60
[musl]
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iswxdigit.c
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#include <wchar.h>
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#include <wctype.h>
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int iswxdigit(wint_t wc)
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{
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return (unsigned)(wc-'0') < 10 || (unsigned)((wc|32)-'a') < 6;
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}