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Make sure output of NaN, Infinity and -Infinity is identical on all platforms

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This commit is contained in:
Jeppe Tarp 2019-08-03 13:14:13 +02:00
parent 0122697561
commit 92693d6e60
1 changed files with 25 additions and 1 deletions
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26
include/yaml-cpp/emitter.h
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@ -8,9 +8,11 @@
#endif
#include <cstddef>
#include <limits>
#include <memory>
#include <sstream>
#include <string>
#include <type_traits>
#include "yaml-cpp/binary.h"
#include "yaml-cpp/dll.h"
@ -153,7 +155,29 @@ inline Emitter& Emitter::WriteStreamable(T value) {
std::stringstream stream;
SetStreamablePrecision<T>(stream);
stream << value;
bool special = false;
if (std::is_floating_point_v<T>) {
if ((std::numeric_limits<T>::has_quiet_NaN &&
value == std::numeric_limits<T>::quiet_NaN()) ||
(std::numeric_limits<T>::has_signaling_NaN &&
value == std::numeric_limits<T>::signaling_NaN())) {
special = true;
stream << ".nan";
} else if (std::numeric_limits<T>::has_infinity) {
if (value == std::numeric_limits<T>::infinity()) {
special = true;
stream << ".inf";
} else if (value == -std::numeric_limits<T>::infinity()) {
special = true;
stream << "-.inf";
}
}
}
if (!special) {
stream << value;
}
m_stream << stream.str();
StartedScalar();