External Interfaces Reference

mxSetPr

Set new real data for mxArray

C Syntax

• #include "matrix.h"
  void mxSetPr(mxArray *array_ptr, double *pr);
  

Arguments

array_ptr
   Pointer to a full (nonsparse) mxArray.

pr
   Pointer to the first element of 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 dynamic memory. If pr points to static memory, then memory leaks and other memory errors may result.

Description

Use mxSetPr to set the real data of the specified mxArray.

All mxCreate calls allocate heap space to hold real data. Therefore, you do not ordinarily use mxSetPr to initialize the real elements of a freshly-created mxArray. Rather, you call mxSetPr to replace the initial real values with new ones.

Examples

See mxsetnzmax.c in the mx subdirectory of the examples directory.

See Also

mxGetPr, mxGetPi, mxSetPi

mxSetPi

C MEX-Functions

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