coffee/fmt
1
0
Fork 0
mirror of https://github.com/fmtlib/fmt.git synced 2026-02-13 21:59:57 +08:00
Code Issues Packages Projects Releases Wiki Activity

Fix signbit detection (#423)

Browse Source 
(cherry picked from commit def687462c32ec40757e49eb6069f109d50236d6)
This commit is contained in:
Victor Zverovich 2016-11-14 20:14:52 -08:00 committed by Jonathan Müller
parent b9a20d761a
commit baedba07ca
1 changed files with 3 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
fmt/format.h
View File

@ -397,8 +397,10 @@ class numeric_limits<fmt::internal::DummyInt> :
// Portable version of signbit. // Portable version of signbit.
static bool isnegative(double x) { static bool isnegative(double x) {
using namespace fmt::internal; using namespace fmt::internal;
if (const_check(sizeof(signbit(x)) == sizeof(int))) if (const_check(sizeof(signbit(x)) == sizeof(bool) ||
sizeof(signbit(x)) == sizeof(int))) {
return signbit(x) != 0; return signbit(x) != 0;
}
if (x < 0) return true; if (x < 0) return true;
if (!isnotanumber(x)) return false; if (!isnotanumber(x)) return false;
int dec = 0, sign = 0; int dec = 0, sign = 0;