Extern C doubt #ifndef __INCvxWorksh # __INCvxWorksh #ifdef __cplusplus Extern "C" ( #endif /*...*/ #ifdef __cplusplus } #endif #endif LEAVES OF 13 SPECIES OF LAURACEAE __INCvxWorksh */ Now unclear #ifdef __cplusplus Extern "C" ( #endif #ifdef __cplusplus } #endif What is the role? We look to experts to advise? Then another module in the C language to be used in the preparation of the first document, the overall number of variables and functions, the use of what form? The first direct #include paper work? Why not Google? I said very clearly inside the blog : Http://www.cppblog.com/converse/archive/2006/01/14/2733.html [ Closed window ]