问题
I am using Eclipse on windows with the MinGW tool chain (g++, etc.). I have a program that I built on darwin that reads and writes to files using wifstream and wofstream. The program comiles and works find using eclipse on darwin (Mac)...no for my problem.
When I move the code over to windows and try to build in using the MinGW tool chain and eclipse, I get a compile error on wifstream, wofstream, and wcout. Variables defined as wstring compile just fine.
For example:
wifstream inFile; inFile.open(argv[2], ios_base::in);
results in a compile error
..\src\pdConv.cpp:31: error: `wifstream' was not declared in this scope
which seems to indicate that the compiler thinks wifstream is a variable. I did notice that the _GLIBCXX_USE_WCHAR_T directive is not enabled in the include files. Do I need to define this myself or is something in the environment supposed to know this? If I define it manually then it appears I cant use both wide and narrow implementations in the same program.
This is probably obvious but I have been stuck in this problem for to long...lol..What am I missing here?
回答1:
Basically, this isn't supported with MinGW. See this link I suppose it's possible the the very latest gcc (4.4.0) that is available for MinGW solves this, but I wouldn't count on it. Looks like using STLPorts might be your only option if you need to stick with MinGW.
来源：https://stackoverflow.com/questions/1316962/iostream-wifstream-and-eclipse-g-on-windows