VS2010正常，Gcc编译错误，怎么回事啊

C/C++ code

transform(tmp2.begin(), tmp2.end(), tmp2.begin(), tolower); 就是这上面这句代码。提示：error: no matching function for call to 'transform(std::basic_string<char>::iterator, std::basic_string<char>::iterator, std::basic_string<char>::iterator, <unresolved overloaded function type>)'

[解决办法]
static_cast<int (*)(int)>(std::tolower)
http://stackoverflow.com/questions/1350380/problems-using-stl-stdtransform-from-cygwin-g
http://gcc.gnu.org/ml/libstdc++/2002-11/msg00180.html
locale什么的真麻烦……