MinMax
Obtains the maximum and minimum values of a vector.
The function interface declaration is as follows:
- Operations on integers:
HmppResult HMPPS_MinMax_16s(const int16_t* src, int32_t len, int16_t* min, int16_t* max);
HmppResult HMPPS_MinMax_32s(const int32_t* src, int32_t len, int32_t* min, int32_t* max);
HmppResult HMPPS_MinMax_8u(const uint8_t* src, int32_t len, uint8_t* min, uint8_t* max);
HmppResult HMPPS_MinMax_16u(const uint16_t* src, int32_t len, uint16_t* min, uint16_t* max);
HmppResult HMPPS_MinMax_32u(const uint32_t* src, int32_t len, uint32_t* min, uint32_t* max);
- Operations on floating-point numbers:
HmppResult HMPPS_MinMax_32f(const float* src, int32_t len, float* min, float* max);
HmppResult HMPPS_MinMax_64f(const double* src, int32_t len, double* min, double* max);
Parameters
Parameter |
Description |
Value Range |
Input/Output |
|---|---|---|---|
src |
Pointer to the source vector |
The value cannot be NULL. |
Input |
len |
Vector length |
(0, INT_MAX] |
Input |
min |
Pointer to the minimum value |
The value cannot be NULL. |
Output |
max |
Pointer to the maximum value |
The value cannot be NULL. |
Output |
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 src, min, or max is NULL. |
HMPP_STS_SIZE_ERR |
The value of len is less than or equal to 0. |
Example
#define BUFFER_SIZE_T 10
void MinMaxExample(void)
{
int16_t src[BUFFER_SIZE_T] = {3, 0, 2, -8, 3, 15, 26, -31, 1, 23};
int16_t min;
int16_t max;
HmppResult result = HMPPS_MinMax_16s(src, BUFFER_SIZE_T, &min, &max);
printf("result = %d\n", result);
if (result != HMPP_STS_NO_ERR) {
return;
}
printf("min = %d, max = %d\n", min, max);
}
Output:
result = 0 min = -31, max = 26