Yes I do,but it seems that those solutions are useless , I even think that it is the codeblocks whick brings this error ,this really makes me crazy !! I picked up the compiler from VC++ 6.0 directly ,it works fine with VC++ 6.0 ,but I really can't see what causes the error in Codeblocks ...Maybe the compiler do not support other IDE ..Maybe I got some compiler parameters lost .....I woule appreciate it if some can help me ..Here is the VC++ 6.0 compiler I am working with .. link removed