Arg

Calculates the argument of two vectors.

The function interface is declared as follows:

Main functions:

HmppResult HMPPS_Arg_32fc(const Hmpp32fc* pSrc, float* pDst, int32_t len);

Parameters

Parameter	Description	Value Range	Input/Output
pSrc	Pointer to the source vector	The value cannot be NULL.	Input
pDst	Pointer to the destination vector	The value cannot be NULL.	Output
len	Length of the source vector and destination vector	(0, INT_MAX]	Input

Return Value

Success: HMPP_STS_NO_ERR
Failure: An error code is returned.

Error Codes

Error Code	Description
HMPP_STS_NO_ERR	No error occurs.
HMPP_STS_NULL_PTR_ERR	Any of the specified pointers is NULL.
HMPP_STS_SIZE_ERR	The value of srcLen or dstLen is less than or equal to 0.

Example

#define BUFFER_SIZE_T 10
void ArgExample(void)
{
    Hmpp32fc src[BUFFER_SIZE_T] = {1.64, 1.63, -1.09, 0.71, -3.20, -0.43, 0.41, -4.83, 5.36, -4.40};
    float dst[BUFFER_SIZE_T];
    (void)HMPPS_Zero_32f(dst, BUFFER_SIZE_T); // Initialize all elements of dst to 0.
    HmppResult result = HMPPS_Arg_32fc(src, dst, BUFFER_SIZE_T / 2);
    printf("result = %d\n", result);
    if (result != HMPP_STS_NO_ERR) {
        return;
    }
    printf("dst =");
    for (int i = 0; i < BUFFER_SIZE_T; i++) {
        printf(" %.2f", dst[i]);
    }
    printf("\n");
}
int main() {
    ArgExample();
    return 0;
}

Output:

result = 0
dst = 0.78 2.56 -3.01 -1.49 -0.69 0.00 0.00 0.00 0.00 0.00

Parent topic: Basic and Common Calculations