error, C++ (gcc) - rextester

error

Language: Layout:

Show compiler warnings [ + ] Compiler args [ + ] Show input
Compilation time: 0.41 sec, absolute service time: 0,51 sec

edit mode | history | discussion

Error(s):

22129230/source.cpp: In function ‘int main()’:
22129230/source.cpp:5:8: error: ‘if constexpr’ only available with -std=c++1z or -std=gnu++1z [-Werror]
     if constexpr(sizeof(int) > 0)
        ^~~~~~~~~
cc1plus: all warnings being treated as errors