HI !

I implemented the modulus of a matrix as this, but it fails to compile :

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const double dPI = std::acos( double(-1.) );
using baseSpaceVd = Matrix<double, 4, 1>;
baseSpaceVd  M(0,1,2,3);

M = M.unaryExpr( []( const baseSpaceVd::Scalar x ) { return x%(2*dPI); } );


Compilation error message is :

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../src/COpdCtrl.cpp: In lambda function:
../src/COpdCtrl.cpp:187:85: error: invalid operands of types ‘const Scalar {aka const double}’ and ‘double’ to binary ‘operator%’
   curGDerr = curGDerr.unaryExpr( []( const baseSpaceVd::Scalar x ) { return x%(2*dPI); } );


This fix works but I'am afraid it degrades the perfs :

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M = M.unaryExpr( []( const baseSpaceVd::Scalar x ) { return fmod( x, (2*dPI); } );


Thanks for your help.

Sylvain