Fix unreachable code warning when signbit returns bool

This commit is contained in:
Victor Zverovich 2018-02-10 07:21:17 -08:00
parent 403ae0a23b
commit 61065e1a5c

View File

@ -249,10 +249,8 @@ class numeric_limits<fmt::internal::dummy_int> :
using namespace fmt::internal;
// The resolution "priority" is:
// isinf macro > std::isinf > ::isinf > fmt::internal::isinf
if (const_check(sizeof(isinf(x)) == sizeof(bool) ||
sizeof(isinf(x)) == sizeof(int))) {
if (const_check(sizeof(isinf(x)) != sizeof(fmt::internal::dummy_int)))
return isinf(x) != 0;
}
return !_finite(static_cast<double>(x));
}
@ -260,20 +258,16 @@ class numeric_limits<fmt::internal::dummy_int> :
template <typename T>
static bool isnotanumber(T x) {
using namespace fmt::internal;
if (const_check(sizeof(isnan(x)) == sizeof(bool) ||
sizeof(isnan(x)) == sizeof(int))) {
if (const_check(sizeof(isnan(x)) != sizeof(fmt::internal::dummy_int)))
return isnan(x) != 0;
}
return _isnan(static_cast<double>(x)) != 0;
}
// Portable version of signbit.
static bool isnegative(double x) {
using namespace fmt::internal;
if (const_check(sizeof(signbit(x)) == sizeof(bool) ||
sizeof(signbit(x)) == sizeof(int))) {
if (const_check(sizeof(signbit(x)) != sizeof(fmt::internal::dummy_int)))
return signbit(x) != 0;
}
if (x < 0) return true;
if (!isnotanumber(x)) return false;
int dec = 0, sign = 0;