cmfill

Perform filling operations on complex matrices.

The function interface declaration is as follows:

Operations on numbers of the float type:

void (vsip_cmfill_f)(vsip_cscalar_f alpha, const vsip_cmview_f *r);

Parameters

Parameter	Description	Value Range	Input/Output
alpha	Complex scalar	Unlimited	Input
r	Pointer to the destination complex matrix	The value cannot be NULL.	Output

Abnormal Input

When a null pointer is input, the function directly returns a result.

Example

#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include "kvsip.h"
#include "vsip.h"
#include "vsip_type.h"

void CmfillExample()
{
    vsip_cscalar_f alpha = {1.1f, -1.2f};
    int32_t row = 4;
    int32_t col = 3;
    int64_t rowStride = 1;
    int64_t colStride = row * rowStride;
    uint64_t offset = 0;
    int32_t len = 2 * (col * colStride + offset);
    float *dst = (float *)malloc(len * sizeof(float));

    vsip_cblock_f *block_r = vsip_cblockbind_f(dst, NULL, len, VSIP_MEM_NONE);
    vsip_cmview_f *r = vsip_cmbind_f(block_r, offset, colStride, col, rowStride, row);
    vsip_cblockadmit_f(block_r, VSIP_TRUE);

    vsip_cmfill_f(alpha, r);

    vsip_cmalldestroy_f(r);

    printf("alpha: %.2f %.2f\n", alpha.r, alpha.i);
    printf("dst:\n");
    for (int32_t i = 0; i < col; ++i) {
        for (int32_t j = 0; j < row; ++j) {
            printf("%.2f ", dst[i * row * 2 + j * 2]);
            printf("%.2f    ", dst[i * row * 2 + j * 2 + 1]);
        }
        printf("\n");
    }
    free(dst);
}

int main(void) {
    CmfillExample();
    return 0;
}

Output:

alpha: 1.10 -1.20
dst:
1.10 -1.20    1.10 -1.20    1.10 -1.20    1.10 -1.20
1.10 -1.20    1.10 -1.20    1.10 -1.20    1.10 -1.20
1.10 -1.20    1.10 -1.20    1.10 -1.20    1.10 -1.20

Parent topic: Matrix Operation Functions