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c++marshallingmanaged-c++

Managed C++ how to convert NOT Null terminated const char * to String ^

In my Native + Managed code project, I need to convert a const char * (Not null terminated) to Managed String ^. Following code works well when the char * is properly null terminated. However it returns crazy strings when the char * is not null terminated.

String^ STAK::CLRServerProxy::ToCLR(const char* str)
{
    return msclr::interop::marshal_as<String^>(str);    
}

Is there a way I can ask it to marshal this native char * to only first 5 characters ? (This native string is always 5 chars long)

Thank you,

Solution 
  • String^ STAK::CLRServerProxy::ToCLR(const char* str)
{
    return Marshal::PtrToStringAnsi((IntPtr) (char *) str, 5)
}

    or if you want to make it more flexible

    String^ STAK::CLRServerProxy::ToCLR(const char* str, size_t n)
{
    return Marshal::PtrToStringAnsi((IntPtr) (char *) str, n)
}

    Calling by passing 5 as the 2nd param