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

In addition to what has been said above, make sure that the Platform Toolset (under Properties->General) is identical in both projects. Otherwise the string content at the arriving side might be bogus.

That happened to me when a console application project with v100 toolset version consumed a library that was set to v90.