when fstream doesn't work...

Recently I was bumped into a problem with std::fstream. It doesn't work with Chinese text directory by default. For example when a file is located at a directory with a Chinese characters, fstream cannot read it and calling fail() function returns true.

After trying to search for it, I found a good answer from this link: http://blog.csdn.net/akof1314/article/details/5198537

So, it's about locale settings, after setting the locale everything runs fine.