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update for HEAD-2003091401
[reactos.git]
/
lib
/
msvcrt
/
stdlib
/
wtoi64.c
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#include <msvcrt/ctype.h>
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#include <msvcrt/stdlib.h>
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/*
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* @implemented
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*/
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__int64 _wtoi64(const wchar_t* nptr)
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{
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wchar_t* s = (wchar_t*)nptr;
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__int64 acc = 0;
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int neg = 0;
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while (iswspace((int)*s))
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s++;
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if (*s == '-') {
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neg = 1;
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s++;
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}
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else if (*s == '+')
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s++;
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while (iswdigit((int)*s)) {
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acc = 10 * acc + ((int)*s - '0');
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s++;
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}
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if (neg)
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acc *= -1;
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return acc;
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}