Fallback to ecvt if _ecvt_s is not available.
Fallback to ecvt if _ecvt_s is not available.
mojoBrendan/fmt,alabuzhev/fmt,Jopie64/cppformat,mojoBrendan/fmt,lightslife/cppformat,alabuzhev/fmt,dean0x7d/cppformat,mojoBrendan/fmt,cppformat/cppformat,lightslife/cppformat,cppformat/cppformat,cppformat/cppformat,dean0x7d/cppformat,lightslife/cppformat,alabuzhev/fmt,dean0x7d/cppformat,Jopie64/cppformat,Jopie64/cppformat