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Link issue when solution contains C++ projects
NeilMacMullen
#1 Posted : Friday, November 8, 2019 2:01:55 PM(UTC)
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I have a multi-project solution which includes a C++ DLL that is called by some C# unit tests.

I notice that Ncrunch tends to get confused if I edit the C++ source. This is quite easy to reproduce when editing header files that contain structure definitions. For example, adding a field to this C++ structure...

Quote:

typedef struct
{
uint32_t number_of_initialisable_profiles; //add this field while Ncrunch is running
uint32_t active_profile;
uint32_t last_successful_profile;
uint32_t roam_threshold;
} cell_profile_selection_info_t;

causes this error....


Quote:
NCrunch: This project was built on server '(local)'
CellProfileWrapper.obj (0, 0): metadata operation failed (8013118D) : Inconsistent layout information in duplicated types (cell_profile_selection_info_t): (0x02000157).
LINK (0, 0): link failed because of metadata errors


(In case it's relevant, CellProfileWrapper.cpp contains a managed 'ref' class which is used to provide a shim to the C# unit tests and the structure is being consumed by both managed C++ and 'normal' C++.)

I accept this is a bit of a corner case for Ncrunch but it would nice if there was an easier way to work around it. At the moment it seems that:

* "reload and rebuild the project" doesn't fix it
* Disabling then re-enabling Ncrunch usually fixes it
* It's sometimes necessary to shut down and restart VS completely.




Remco
#2 Posted : Friday, November 8, 2019 10:48:27 PM(UTC)
Rank: NCrunch Developer

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Hi, thanks for sharing this issue.

C++ isn't a supported language for NCrunch. We've done no real testing on usage of NCrunch with C++ based assemblies and cannot warrant that the product will work correctly with it. Any success with you have with it is entirely incidental.

Does compatibility mode make any difference here?
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