Typed Data Access in C MEX Files

The functions mxGetPr and mxGetPi in the C and Fortran Matrix APIs read data elements in mxArrays of type mxDOUBLE_CLASS. However, these functions do not verify the array type of the input argument. For type-safe data access, use the C mxGetDoubles and mxGetComplexDoubles functions or the Fortran mxGetDoubles and mxGetComplexDoubles functions. There are typed data access functions for each numeric mxArray type, as shown in this table.

The typed data access functions are part of the interleaved complex C and Fortran Matrix APIs; use the mex -R2018a option to build the MEX functions.

MATLAB® mxArray Types	C Typed Data Access Functions	Fortran Typed Data Access Functions
mxDOUBLE_CLASS	mxGetDoubles mxSetDoubles mxGetComplexDoubles mxSetComplexDoubles	mxGetDoubles mxSetDoubles mxGetComplexDoubles mxSetComplexDoubles
mxSINGLE_CLASS	mxGetSingles mxSetSingles mxGetComplexSingles mxSetComplexSingles	mxGetSingles mxSetSingles mxGetComplexSingles mxSetComplexSingles
mxINT8_CLASS	mxGetInt8s mxSetInt8s mxGetComplexInt8s mxSetComplexInt8s	mxGetInt8s mxSetInt8s mxGetComplexInt8s mxSetComplexInt8s
mxUINT8_CLASS	mxGetUint8s mxSetUint8s mxGetComplexUint8s mxSetComplexUint8s	mxGetUint8s mxSetUint8s mxGetComplexUint8s mxSetComplexUint8s
mxINT16_CLASS	mxGetInt16s mxSetInt16s mxGetComplexInt16s mxSetComplexInt16s	mxGetInt16s mxSetInt16s mxGetComplexInt16s mxSetComplexInt16s
mxUINT16_CLASS	mxGetUint16s mxSetUint16s mxGetComplexUint16s mxSetComplexUint16s	mxGetUint16s mxSetUint16s mxGetComplexUint16s mxSetComplexUint16s
mxINT32_CLASS	mxGetInt32s mxSetInt32s mxGetComplexInt32s mxSetComplexInt32s	mxGetInt32s mxSetInt32s mxGetComplexInt32s mxSetComplexInt32s
mxUINT32_CLASS	mxGetUint32s mxSetUint32s mxGetComplexUint32s mxSetComplexUint32s	mxGetUint32s mxSetUint32s mxGetComplexUint32s mxSetComplexUint32s
mxINT64_CLASS	mxGetInt64s mxSetInt64s mxGetComplexInt64s mxSetComplexInt64s	mxGetInt64s mxSetInt64s mxGetComplexInt64s mxSetComplexInt64s
mxUINT64_CLASS	mxGetUint64s mxSetUint64s mxGetComplexUint64s mxSetComplexUint64s	mxGetUint64s mxSetUint64s mxGetComplexUint64s mxSetComplexUint64s