matlab mxsetdata函数语法

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一句话说明: Set pointer to real numeric data elements in array

mxSetData (C and Fortran)

Set pointer to real numeric data elements in array

C Syntax

#include "matrix.h"
void mxSetData(mxArray *pm, void *pr);

Fortran Syntax

subroutine mxSetData(pm, pr)
mwPointer pm, pr



Pointer to an mxArray


Pointer to an array. Each element in the array contains the real component of a value. The array must be in dynamic memory; call mxCalloc to allocate this memory. Do not use the ANSI® C calloc function, which can cause memory alignment issues leading to program termination.


mxSetData is like mxSetPr, except that in C, its second argument is a void *. Use this function on numeric arrays with contents other than double.

This function does not free any memory allocated for existing data that it displaces. To free existing memory, call mxFree on the pointer returned by mxGetData before you call mxSetData.


See the following examples in matlabroot/extern/examples/refbook.

See Also

mxCalloc, mxFree, mxGetData, mxSetPr


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