How do I enable C++17 in Xcode (9.4.1) on OSX High Sierra (10.13.5)?
Steps to use C++17 in Xcode (9.4.1) on OSX High Sierra (10.13.5):
Verification steps:
Now when I output __cplusplus, I see 201703, and I am able to compile C++17 features, such as if constexpr.
template<class T>
int compute(T x) {
if constexpr( supportsAPI(T{}) ) {
// only gets compiled if the condition is true
return x.Method();
} else {
return 0;
}
}
int main(){
cout << __cplusplus << endl;
return 0;
}
Output:
201703
Program ended with exit code: 0