在ATL中使用STL的问题!

lwg7603 2001-05-22 11:11:00

我在ATL中使用了STL中的string字符串类,编译通过，但有几个warning，不知是何原因？
请高手指教.warning如下:
d:\visual c++\vc98\include\istream(547) : warning C4530: C++ exception handler used, but unwind semantics are not enabled. Specify -GX
d:\visual c++\vc98\include\ostream(234) : warning C4530: C++ exception handler used, but unwind semantics are not enabled. Specify -GX
d:\visual c++\vc98\include\ostream(229) : while compiling class-template member function 'class std::basic_ostream<char,struct std::char_traits<char> > &__thiscall std::basic_ostream<char,struct std::char_traits<char> >::put(char)'
d:\visual c++\vc98\include\ostream(234) : warning C4530: C++ exception handler used, but unwind semantics are not enabled. Specify -GX
d:\visual c++\vc98\include\ostream(229) : while compiling class-template member function 'class std::basic_ostream<unsigned short,struct std::char_traits<unsigned short> > &__thiscall std::basic_ostream<unsigned short,struct std::char_traits
<unsigned short> >::put(unsigned short)'
d:\visual c++\vc98\include\istream(46) : warning C4530: C++ exception handler used, but unwind semantics are not enabled. Specify -GX
d:\visual c++\vc98\include\istream(41) : while compiling class-template member function 'bool __thiscall std::basic_istream<char,struct std::char_traits<char> >::ipfx(bool)'
d:\visual c++\vc98\include\istream(46) : warning C4530: C++ exception handler used, but unwind semantics are not enabled. Specify -GX
d:\visual c++\vc98\include\istream(41) : while compiling class-template member function 'bool __thiscall std::basic_istream<unsigned short,struct std::char_traits<unsigned short> >::ipfx(bool)'
d:\visual c++\vc98\include\xstring(525) : warning C4530: C++ exception handler used, but unwind semantics are not enabled. Specify -GX
d:\visual c++\vc98\include\xstring(521) : while compiling class-template member function 'void __thiscall std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >::_Copy(unsigned int)'

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