mirror/fmt
1
0
Fork 0
mirror of https://github.com/fmtlib/fmt.git synced 2024-11-08 02:28:15 +00:00
Code Issues Packages Projects Releases Wiki Activity

Fix signbit detection (#423)

Browse Source
This commit is contained in:
Victor Zverovich 2016-11-14 20:14:52 -08:00
parent 25f8ad13dd
commit def687462c
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.
static bool isnegative(double x) {
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;
}
if (x < 0) return true;
if (!isnotanumber(x)) return false;
int dec = 0, sign = 0;