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mxGetNumberOfElements (C and Fortran) - Number of elements in mxArray

C Syntax

#include "matrix.h"
size_t mxGetNumberOfElements(const mxArray *pm);

Fortran Syntax

mwPointer mxGetNumberOfElements(pm)
mwPointer pm

Arguments

pm

Pointer to an mxArray

Returns

Number of elements in the specified mxArray

Description

mxGetNumberOfElements tells you how many elements an array has. For example, if the dimensions of an array are 3-by-5-by-10, mxGetNumberOfElements returns the number 150.

Note   Fortran does not have an equivalent of size_t. mwPointer is a preprocessor macro that provides the appropriate Fortran type. The value returned by this function, however, is not a pointer.

C Examples

See findnz.c and phonebook.c in the matlabroot/extern/examples/refbook folder .

Additional examples:

• explore.c in the matlabroot/extern/examples/mex folder

• mxcalcsinglesubscript.c, mxgeteps.c, mxgetinf.c, mxisfinite.c, and mxsetdimensions.c in the matlabroot/extern/examples/mx folder

See Also

mxGetDimensions, mxGetM, mxGetN, mxGetClassID, mxGetClassName

mxGetNumberOfDimensions (C and Fortran)

mxGetNumberOfFields (C and Fortran)

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