如何在MinGW中更改区域设置

example found here 即使系统区域设置为加拿大,也没有添加逗号。

#include <iostream>
#include <locale>

int main()
{
    std::wcout << "User-preferred locale setting is " << std::locale("").name().c_str() << '\n';
    // on startup, the global locale is the "C" locale
    std::wcout << 1000.01 << '\n';
    // replace the C++ global locale as well as the C locale with the user-preferred locale
    std::locale::global(std::locale(""));
    // use the new global locale for future wide character output
    std::wcout.imbue(std::locale());
    // output the same number again
    std::wcout << 1000.01 << '\n';
}

输出为

User-preferred locale setting is C
100000
100000

我试过了 std::locale("en-CA") locale::facet::_S_create_c_locale name not valid 在运行时。我使用g++从CMD编译。我在运行64位Windows10。

此外,我试图编译这个程序中发现的接受答案在这里,并得到编译器错误 'LOCALE_ALL' was not declared in this scope .