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MinEvery

Obtains the minimum value of each pair of elements in two vectors.

The function interface declaration is as follows:

  • Operations on floating-point numbers:

    HmppResult HMPPS_MinEvery_32f(const float *src1, const float *src2, float *dst, int32_t len);

    HmppResult HMPPS_MinEvery_64f(const double *src1, const double *src2, double *dst, int32_t len);

  • In-place operations on integers:

    HmppResult HMPPS_MinEvery_16s_I(const int16_t *src, int16_t *srcDst, int32_t len);

    HmppResult HMPPS_MinEvery_32s_I(const int32_t *src, int32_t *srcDst, int32_t len);

  • In-place operations on floating-point numbers:

    HmppResult HMPPS_MinEvery_32f_I(const float *src, float *srcDst, int32_t len);

    HmppResult HMPPS_MinEvery_64f_I(const double *src, double *srcDst, int32_t len);

Parameters

Parameter

Description

Value Range

Input/Output

src1

Pointer to the first source vector

The value cannot be NULL.

Input

src2

Pointer to the second source vector

The value cannot be NULL.

Input

dst

Pointer to the destination vector

The value cannot be NULL.

Output

src

Pointer to the source vector for in-place operations

The value cannot be NULL.

Input

srcDst

Pointer to the destination vector for in-place operations

The value cannot be NULL.

Input/Output

len

Vector length

(0, INT_MAX]

Input

Return Value

  • Success: HMPP_STS_NO_ERR
  • Failure: An error code is returned.

Error Codes

Error Code

Description

HMPP_STS_NULL_PTR_ERR

The value of src1, src2, dst, src, or srcDst is NULL.

HMPP_STS_SIZE_ERR

The value of len is less than or equal to 0.

Note

The len input parameter is of the unsigned type. If a negative value is transferred, len will be changed to a large value, causing an unknown error.

Example

#define BUFFER_SIZE_T 10

void MinEveryExample(void)
{
    float src1[BUFFER_SIZE_T] = {3.25, 0.45, 2.23, -8.11, 3.10, 15.56, 26.53, -31.13, 1.44, 23.18};
    float src2[BUFFER_SIZE_T] = {0.32, 0.56, -12.45, 45.67, 12.10, -2.11, -7.60, 6.78, 8.88, 1.24};
    float dst[BUFFER_SIZE_T];
    (void)HMPPS_Zero_32f(dst, BUFFER_SIZE_T); //Initialize all elements of dst to 0.
    HmppResult result = HMPPS_MinEvery_32f(src1, src2, dst, BUFFER_SIZE_T);
    printf("result = %d\n", result);
    if (result != HMPP_STS_NO_ERR) {
        return;
    }
    printf("The min vector is:");
    for (int i = 0; i < BUFFER_SIZE_T; i++) {
        printf("  %.2f", dst[i]);
    }
    printf("\n");
}

Output:

result = 0
The min vector is:  0.32  0.45  -12.45  -8.11  3.10  -2.11  -7.60  -31.13  1.44  1.24