1 files changed, 80 insertions, 0 deletions
diff --git a/Runtime/Serialize/FloatStringConversion.cpp b/Runtime/Serialize/FloatStringConversion.cpp
new file mode 100644
index 0000000..ce057d3
--- /dev/null
+++ b/Runtime/Serialize/FloatStringConversion.cpp
@@ -0,0 +1,80 @@
+#include "UnityPrefix.h"
+
+#if UNITY_EDITOR
+// This are the definitions of std::numeric_limits<>::max_digits10, which we cannot use
+// because it is only in the C++11 standard.
+const int kMaxFloatDigits = std::floor(std::numeric_limits<float>::digits * 3010.0/10000.0 + 2);
+const int kMaxDoubleDigits = std::floor(std::numeric_limits<double>::digits * 3010.0/10000.0 + 2);
+
+#include "External/gdtoa/gdtoa.h"
+
+bool FloatToStringAccurate (float f, char* buffer, size_t maximumSize)
+{
+	return g_ffmt (buffer, (float*)&f, kMaxFloatDigits, maximumSize) != NULL;
+}
+
+bool DoubleToStringAccurate (double f, char* buffer, size_t maximumSize)
+{
+	return g_dfmt (buffer, (double*)&f, kMaxDoubleDigits, maximumSize) != NULL;
+}
+
+bool FloatToStringAccurate (float f, UnityStr& output)
+{
+	char buf[64];
+	if (FloatToStringAccurate (f, buf, 64))
+	{
+		output = buf;
+		return true;
+	}
+	else
+		return false;
+}
+
+bool DoubleToStringAccurate (double f, UnityStr& output)
+{
+	char buf[64];
+	if (DoubleToStringAccurate (f, buf, 64))
+	{
+		output = buf;
+		return true;
+	}
+	else
+		return false;
+}
+
+float StringToFloatAccurate (const char* buffer)
+{
+	return strtof (buffer, NULL);
+}
+
+double StringToDoubleAccurate (const char* buffer)
+{
+	return strtod (buffer, NULL);
+}
+
+#if ENABLE_UNIT_TESTS
+#include "../../External/UnitTest++/src/UnitTest++.h"
+
+SUITE (FloatStringConversionTests)
+{
+TEST(FloatToStringConversion_AccurateWorks)
+{
+	// Make sure no locale is used
+	CHECK_EQUAL (0.0F, StringToFloatAccurate("0,5"));
+	
+	UnityStr buf; 
+
+	FloatToStringAccurate(1.0F, buf);
+	CHECK_EQUAL ("1", buf);
+
+	CHECK_EQUAL (1.0F, StringToFloatAccurate("1.0"));
+
+
+	FloatToStringAccurate(1.5F, buf);
+	CHECK_EQUAL ("1.5", buf);
+	CHECK_EQUAL (1.5F, StringToFloatAccurate("1.5"));
+}
+}
+#endif
+
+#endif