vand
实数向量逻辑与运算。
函数接口声明如下:
bool型数的操作:
void (vsip_vand_bl)(const vsip_vview_bl *a, const vsip_vview_bl *b, const vsip_vview_bl *r);
参数
参数名 |
描述 |
取值范围 |
输入/输出 |
---|---|---|---|
a |
指向源向量的指针。 |
非空 |
输入 |
b |
指向源向量的指针。 |
非空 |
输入 |
r |
指向目的向量的指针。 |
非空 |
输出 |
异常输入
空指针输入时,函数直接返回。
示例
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 | #include <stdio.h> #include <stdlib.h> #include <stdint.h> #include "kvsip.h" #include "vsip.h" #include "vsip_type.h" #define BUFFER_SIZE_T 10 void VandExample() { int32_t src1[BUFFER_SIZE_T] = {1, 6, -1, 0, 3, -4, 0, 9, -5, 2}; int32_t src2[BUFFER_SIZE_T] = {-1, 0, 4, -18, 13, 0, 0, -3, 5, 0}; int32_t dst[BUFFER_SIZE_T]; int64_t stride = 1; uint64_t offset = 0; vsip_block_bl *block_a = vsip_blockbind_bl(src1, BUFFER_SIZE_T, VSIP_MEM_NONE); vsip_block_bl *block_b = vsip_blockbind_bl(src2, BUFFER_SIZE_T, VSIP_MEM_NONE); vsip_block_bl *block_r = vsip_blockbind_bl(dst, BUFFER_SIZE_T, VSIP_MEM_NONE); vsip_vview_bl *a = vsip_vbind_bl(block_a, offset, stride, BUFFER_SIZE_T); vsip_blockadmit_bl(block_a, VSIP_TRUE); vsip_vview_bl *b = vsip_vbind_bl(block_b, offset, stride, BUFFER_SIZE_T); vsip_blockadmit_bl(block_b, VSIP_TRUE); vsip_vview_bl *r = vsip_vbind_bl(block_r, offset, stride, BUFFER_SIZE_T); vsip_blockadmit_bl(block_r, VSIP_TRUE); vsip_vand_bl(a, b, r); vsip_valldestroy_bl(a); vsip_valldestroy_bl(b); vsip_valldestroy_bl(r); printf("src1:\n"); for (int32_t i = 0; i < BUFFER_SIZE_T; ++i) { printf("%d ", src1[i]); } printf("\nsrc2:\n"); for (int32_t i = 0; i < BUFFER_SIZE_T; ++i) { printf("%d ", src2[i]); } printf("\ndst:\n"); for (int32_t i = 0; i < BUFFER_SIZE_T; ++i) { printf("%d ", dst[i]); } printf("\n"); } int main(void) { VandExample(); return 0; } |
运行结果:
1 2 3 4 5 6 | src1: 1 6 -1 0 3 -4 0 9 -5 2 src2: -1 0 4 -18 13 0 0 -3 5 0 dst: 1 0 1 0 1 0 0 1 1 0 |
父主题: 向量运算函数