Funzionalità C++ 11 con MinGW

Question

Provo ad utilizzare la funzione emplace() per unorded_map e il compilatore dice che non esiste tale funzione.

ho messo -std=c+11 e dice cc1plus.exe: error: unrecognized command line option '-std=c+11'

Posso in qualche modo utilizzare C++ 11 funzionalità con MinGW?

Answer 1

Dal GCC documentation

C++0x was the working name of a new ISO C++ standard, which was then released in 2011 as C++11 and introduces a host of new features into the standard C++ language and library. This project seeks to implement new C++11 features in GCC and to make it one of the first compilers to bring C++11 to C++ programmers.

C++11 features are available as part of the "mainline" GCC compiler in the trunk of GCC's Subversion repository and in GCC 4.3 and later. To enable C++0x support, add the command-line parameter -std=c++0x to your g++ command line. Or, to enable GNU extensions in addition to C++0x extensions, add -std=gnu++0x to your g++ command line. GCC 4.7 and later support -std=c++11 and -std=gnu++11 as well.

Così, per gcc 4.3 tramite 4.6 uso -std = C++ 0x, per poi utilizzare la versione -std = C++ 11. Il supporto per la libreria per map::emplace è stato aggiunto in gcc 4.8