Why does this program crash: passing of std::string between DLLs

Question

I have some trouble figuring out why the following crashes (MSVC9):

//// the following compiles to A.dll with release runtime linked dynamically
//A.h
class          


        

Answer 1

This might be because the DLL and the EXE are compiled with different CRT settings. So when you pass a string, some resource conflict happens. Check your project settings for both the DLL and the executable.