eclipse shows unrecognizable characters in the console

I have installed Eclipse IDE for C/C++ Developers. I found the compilation message output in the console window contains some unrecognizable characters such below.

**** Build of configuration Debug for project test ****

make all 
Bui开发者_如何学编程lding file: ../a.cpp
Invoking: Cygwin C++ Compiler
g++ -O0 -g3 -Wall -c -fmessage-length=0 -MMD -MP -MF"a.d" -MT"a.d" -o"a.o" "../a.cpp"
../a.cpp:4: error: non-member function 鈥榲oid f(bool&)鈥?cannot have cv-qualifier
make: *** [a.o] Error 1

Could anyone please let me know how to correct this problem?

Thanks a lot!

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You should check the encoding of the individual files that you are compiling. In addition to a default workspace encoding (mentioned by @adam_0), there can be overridden encodings on each file.

Right click on the file and goto properties. You should see the file encoding there. My guess is that you have at least one of your source files set to a encoding that is incompatible with the compiler. Try setting everything to UTF8 and see if that helps.