// printf, and stop using snprintf here.
char FloatBuffer[32];
#if SANITIZER_WINDOWS
- sprintf_s(FloatBuffer, sizeof(FloatBuffer), "%Lg", (long double)A.Float);
+ // On MSVC platforms, long doubles are equal to regular doubles.
+ // In MinGW environments on x86, long doubles are 80 bit, but here,
+ // we're calling an MS CRT provided printf function which considers
+ // long doubles to be 64 bit. Just cast the float value to a regular
+ // double to avoid the potential ambiguity in MinGW mode.
+ sprintf_s(FloatBuffer, sizeof(FloatBuffer), "%g", (double)A.Float);
#else
snprintf(FloatBuffer, sizeof(FloatBuffer), "%Lg", (long double)A.Float);
#endif