CODEWITHSUNDEEP
c++matlabmex
Leo
Leo

Reputation: 1223

Mex compilation macro

I wish to include a certain header file only when my code is compiled via the mex command in Matlab. If it's compiled directly with Visual Studio I do not want it included.

Is there a macro that can help with that?

I'd like to do something of this sort:

#ifdef MEX_COMPILE_FLAG
#include "mexDependent.h"
#end

Upvotes: 3

Views: 1407

Answers (3)

aschepler
aschepler

Reputation: 72463

You can use the macro MATLAB_MEX_FILE for this. To get mex.h to work properly, this macro must be defined if and only if the compiled object will eventually be linked into a mex file. So the mex command makes sure to always define it when it calls the compiler.

Upvotes: 4

DUman
DUman

Reputation: 2590

As far as I know, mex just calls some other compiler without reliably setting a preprocessor macro. However, if your Matlab build script does set MEX_COMPILE_FLAG, then your proposal will work, except that #end needs to be #endif.

Upvotes: 0

stijn
stijn

Reputation: 35911

You can do this manually:

mex -DMEX_COMPILE_FLAG ...

Upvotes: 4

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