---
title: Div
description: "两向量相除。"
url: https://www.hikunpeng.com/document/detail/zh/kunpengboostkithistory/240RC1/accel/kunpengaccel_hmpp_06_0058.html
sourcePath: /source/zh/kunpengboostkithistory/240RC1/accel/kunpengaccel_hmpp_06_0058.html
indexId: a3d7b63caf8ac6c57fa035fd9529c6237bccfd36778804b498650e4e8be57fda77
---
# Div

两向量相除。

函数接口声明如下：

- 有缩放的整型数操作：
  HmppResult HMPPS_Div_8u_S(const uint8_t* src1, const uint8_t* src2, uint8_t* dst, int32_t len, double scale);

  HmppResult HMPPS_Div_16u_S(const uint16* src1, const uiuint16_tsrc2, uiuint16_tdst, int32_t len, double scale);

  HmppResult HMPPS_Div_16s_S(const int16_t* src1, const int16_t* src2, int16_t* dst, int32_t len, double scale);

  HmppResult HMPPS_Div_32s_S(const int32_t* src1, const int32_t* src2, int32_t* dst, int32_t len, double scale);

  HmppResult HMPPS_Div_16sc_S(const Hmpp16sc* src1, const Hmpp16sc* src2, Hmpp16sc* dst, int32_t len, double scale);

  HmppResult HMPPS_Div_32s16s_S(const int16_t* src1, const int32_t* src2, int16_t* dst, int32_t len, double scale);

- 浮点数的操作：
  HmppResult HMPPS_Div_32f(const float* src1, const float* src2,float* dst, int32_tlen);

  HmppResult HMPPS_Div_64f(const double* src1, const double* src2,double* dst, int32_t len);

  HmppResult HMPPS_Div_32fc(const Hmpp32fc* src1, const Hmpp32fc* src2,Hmpp32fc* dst, int32_t len);

  HmppResult HMPPS_Div_64fc(const Hmpp64fc* src1, const Hmpp64fc* src2,Hmpp64fc* dst, int32_t len);

- 有缩放的整型数原址操作：
  HmppResult HMPPS_Div_8u_IS(const uint8_t* src, uint8_t* srcDst, int32_t len, double scale);

  HmppResult HMPPS_Div_16u_IS(const uint16_t* src, uint16_t* srcDst, int32_t len, double scale);

  HmppResult HMPPS_Div_16s_IS(const int16_t* src, int16_t* srcDst, int32_t len, double scale);

  HmppResult HMPPS_Div_16sc_IS(const Hmpp16sc* src, Hmpp16sc* srcDst, int32_t len, double scale);

  HmppResult HMPPS_Div_32s_IS(const int32_t* src, int32_t* srcDst, int32_t len, double scale);

- 浮点数的原址操作：
  HmppResult HMPPS_Div_32f_I(const float* src, float* srcDst, int32_t len);

  HmppResult HMPPS_Div_64f_I(const double* src, double* srcDst, int32_t len);

  HmppResult HMPPS_Div_32fc_I(const Hmpp32fc* src, Hmpp32fc* srcDst, int32_t len);

  HmppResult HMPPS_Div_64fc_I(const Hmpp64fc* src, Hmpp64fc* srcDst, int32_t len);


#### 参数

| 参数名 | 描述 | 取值范围 | 输入/输出 |
| --- | --- | --- | --- |
| src1 | 指向除数向量的指针。 | 非空 | 输入 |
| src2 | 指向被除数向量的指针。 | 非空 | 输入 |
| dst | 指向目的向量的指针。 | 非空 | 输出 |
| srcDst | 指向原址操作向量的指针。 | 非空 | 输入/输出 |
| len | 向量长度。 | (0, INT\_MAX] | 输入 |
| scale | 缩放因数。 | (0,INF)且输入为2^n | 输入 |


#### 返回值

- 成功：返回HMPP_STS_NO_ERR。
- 失败：返回错误码。


#### 错误码

| 错误码 | 描述 |
| --- | --- |
| HMPP\_STS\_NULL\_PTR\_ERR | 输入参数中出现空指针，src1、src2、dst、src、srcDst不允许为空。 |
| HMPP\_STS\_SIZE\_ERR | 参数len必须大于0。 |
| HMPP\_STS\_DIV\_BY\_ZERO\_ERR | 除0错误。 |
| HMPP\_STS\_SCALE\_ERR | scale不在(0,INF)范围内或输入为nan。 |


#### 示例

```
#define BUFFER_SIZE_T 10
void DivExample(void)
{
float src1[BUFFER_SIZE_T] = { -1.64, -1.63, -1.09, 0.71, 3.20, -0.43, -0.41, 4.83, 5.36, 4.40};
float src2[BUFFER_SIZE_T] = { 5.20, 9.12, 0.86, 10.13, 5.94, -0.62, 9.19, 11.44, -0.07, 10.23};
float dst[BUFFER_SIZE_T] = {0.00};
int32_t i, result;
result = HMPPS_Div_32f(src1, src2, dst, BUFFER_SIZE_T);
printf("result = %d\n", result);
if (result != HMPP_STS_NO_ERR) {
return;
}
printf("dst =");
for (i = 0; i < BUFFER_SIZE_T; i++) {
printf(" %.2f", dst[i]);
}
printf("\n");
}
```

运行结果：

```
result = 0.
dst = -3.17  -5.60  -0.79  14.27  1.86  1.44  -22.41  2.37  -0.01  2.32
```