On 15 December 2016 at 07:33, g arumugam wrote: > I am using gcc 4.9.3. i saw this compiler is using C++11. when i use > one of C++11 feature it throws that is available only in C++11. so i > remodified the command to use std=c++11 but then it throws me list of > standard errors.as mentioned below > > ^ > c:\mingw\lib\gcc\mingw32\4.9.3\include\c++\bits\basic_string.h: In > function 'std::string std::to_string(long long unsigned int)': > c:\mingw\lib\gcc\mingw32\4.9.3\include\c++\bits\basic_string.h:2927:45: > error: 'vsnprintf' is not a member of 'std' The 4.9 release is no longer supported. but I think this is fixed in more recent versions of GCC.