vsip_dmput_p - Set Matrix Element

Core

This manual is preliminary and incomplete.
While our Core implementation implements all functions given in the standard we are still working on completing this documentation.

Please refer to the VSIPL standard for a complete function reference of the Core profile until we have completed work on this documentation.

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1.4.5 vsip_dmput_p - Set Matrix Element

void vsip_mput_f(const vsip_mview_f *v, vsip_index i, vsip_index j, vsip_scalar_f vv); 
void vsip_cmput_f(const vsip_cmview_f *v, vsip_index i, vsip_index j, vsip_cscalar_f vv);

Description

This function sets the value of a specific element in a matrix view. The element is identified by its row and column indices (0-based).

Parameters

const vsip_dmview_p* v: Pointer to the matrix view.
vsip_index i: Row index of the element to set (0-based).
vsip_index j: Column index of the element to set (0-based).
vsip_dscalar_p vv: The value to assign to the matrix element.

Example

vsip_mview_f *matrix; 
vsip_index i, j; 
 
// Create a matrix 
matrix = vsip_mcreate_f(5, 5, VSIP_ROW, VSIP_MEM_NONE); 
 
// Set specific elements 
vsip_mput_f(matrix, 0, 0, 1.0f);  // Top-left corner 
vsip_mput_f(matrix, 2, 2, 5.0f);  // Center element 
vsip_mput_f(matrix, 4, 4, 9.0f);  // Bottom-right corner

Notes

The indices are 0-based (first row/column is index 0).
The function does not perform bounds checking and may cause a memory access error.
For submatrix views, the indices are relative to the submatrix, not the parent matrix.

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