External Interfaces/API Reference

mxSetCell

Set the value of one cell

C Syntax

• #include "matrix.h"
  void mxSetCell(mxArray *array_ptr, int index, mxArray *value);
  

Arguments

array_ptr
   Pointer to a cell mxArray.

index
   Index from the beginning of the mxArray. Specify the number of elements between the first cell of the mxArray and the cell you want to set. The easiest way to calculate index in a multidimensional cell array is to call mxCalcSingleSubscript.

value
   The new value of the cell. You can put any kind of mxArray into a cell. In fact, you can even put another cell mxArray into a cell.

Description

Call mxSetCell to put the designated value into a particular cell of a cell mxArray. You can assign new values to unpopulated cells or overwrite the value of an existing cell. To do the latter, first use mxDestroyArray to free what is already there and then mxSetCell to assign the new value.

Note    Inputs to a MEX-file are constant read-only mxArrays and should not be modified. Using mxSetCell* or mxSetField* to modify the cells or fields of an argument passed from MATLAB causes unpredictable results.

Examples

See phonebook.c in the refbook subdirectory of the examples directory. For an additional example, see mxcreatecellmatrix.c in the mx subdirectory of the examples directory.

See Also

mxCreateCellArray, mxCreateCellMatrix, mxGetCell, mxIsCell

mxSetAllocFcns

mxSetClassName