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Implement signbit for MSVC.

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This commit is contained in:
Victor Zverovich 2012-12-28 09:08:29 -08:00
parent ce60483833
commit 10108c75a5
1 changed files with 10 additions and 0 deletions
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10
format.cc
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@ -135,6 +135,16 @@ void FormatDecimal(char *buffer, uint64_t value, unsigned num_digits) {
buffer[1] = DIGITS[index + 1];
buffer[0] = DIGITS[index];
}
#ifdef _MSC_VER
int signbit(double value) {
if (value < 0) return 1;
if (!isnan(value)) return 0;
int dec = 0, sign = 0;
ecvt(value, 0, &dec, &sign);
return sign;
}
#endif
}
void BasicFormatter::operator<<(int value) {