MinGW main()

MinGW没有wmain入口函数，为了获取宽字符的参数，可以用系统API函数GetCommandLineW。

main.cpp

#include <iostream>
#include <windows.h>
using namespace std;

int main(int argc, const char *argv[], const char *evn[]) {
    // print w_char
    ios::sync_with_stdio(false);
    locale::global(locale(""));
    setlocale(LC_CTYPE, "");
    wcout.imbue(locale(""));
    wcout << L"This is a test! 这是一个测试！" << endl << endl;

    //print args
    wcout << "argc: " << argc << endl;
    wchar_t **argv1 = CommandLineToArgvW(GetCommandLineW(), &argc); // MinGW w_char args
    for (int i = 0; i < argc; ++i) {
        wcout << "argv[" << i << "]: " << argv1[i] << endl;
    }
    LocalFree(argv1);
    wcout << endl;

    // print evn
    for (int i = 0; evn[i]!=NULL; ++i) {
        wcout << "evn[" << i << "]: " << evn[i] << endl;
    }

    return EXIT_SUCCESS;
}

编译输出：

D:>g++ main.cpp -o test.exe

D:>test.exe File1 -o File2 汉字 "a b c"
This is a test! 这是一个测试！

argc: 6
argv[0]: test.exe
argv[1]: File1
argv[2]: -o
argv[3]: File2
argv[4]: 汉字
argv[5]: a b c

evn[0]: ALLUSERSPROFILE=C:ProgramData
evn[1]: APPDATA=C:UsersYKAppDataRoaming
evn[2]: CommonProgramFiles=C:Program Files (x86)Common Files
evn[3]: CommonProgramFiles(x86)=C:Program Files (x86)Common Files
evn[4]: CommonProgramW6432=C:Program FilesCommon Files
evn[5]: COMPUTERNAME=YK-PC
evn[6]: ComSpec=C:Windowssystem32cmd.exe
evn[7]: FP_NO_HOST_CHECK=NO
evn[8]: HOMEDRIVE=C:
evn[9]: HOMEPATH=UsersYK
evn[10]: LOCALAPPDATA=C:UsersYKAppDataLocal
evn[11]: LOGONSERVER=\YK-PC
evn[12]: NUMBER_OF_PROCESSORS=4
evn[13]: OS=Windows_NT
evn[14]: Path=C:Windowssystem32;C:Windows;C:WindowsSystem32Wbem;C:Windows
System32WindowsPowerShellv1.0;C:Program Files (x86)IntelOpenCL SDK2.0i
nx86;C:Program Files (x86)IntelOpenCL SDK2.0inx64;C:MinGWin
evn[15]: PATHEXT=.COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH;.MSC
evn[16]: PROCESSOR_ARCHITECTURE=x86
evn[17]: PROCESSOR_ARCHITEW6432=AMD64
evn[18]: PROCESSOR_IDENTIFIER=Intel64 Family 6 Model 42 Stepping 7, GenuineIntel
evn[19]: PROCESSOR_LEVEL=6
evn[20]: PROCESSOR_REVISION=2a07
evn[21]: ProgramData=C:ProgramData
evn[22]: ProgramFiles=C:Program Files (x86)
evn[23]: ProgramFiles(x86)=C:Program Files (x86)
evn[24]: ProgramW6432=C:Program Files
evn[25]: PROMPT=$P$G
evn[26]: PSModulePath=C:Windowssystem32WindowsPowerShellv1.0Modules
evn[27]: PUBLIC=C:UsersPublic
evn[28]: SystemDrive=C:
evn[29]: SystemRoot=C:Windows
evn[30]: TEMP=C:UsersYKAppDataLocalTemp
evn[31]: TMP=C:UsersYKAppDataLocalTemp
evn[32]: USERDOMAIN=YK-PC
evn[33]: USERNAME=YK
evn[34]: USERPROFILE=C:UsersYK
evn[35]: windir=C:Windows
evn[36]: windows_tracing_flags=3
evn[37]: windows_tracing_logfile=C:BVTBinTestsinstallpackagecsilogfile.log

D:>