Malloc and Free

Allocate memory aligned to a specified byte:
void* HMPP_Malloc(int32_t len);

Release memory:
void HMPP_Free(void* ptr);

Parameters

Parameter	Description	Value Range	Input/Output
len	Byte length (HMPP_Malloc function) Array length (HMPPS_Malloc_xxx function)	> 0	Input
ptr	Pointer to the memory block to be released (Free function)	The value cannot be NULL.	Input

Parameter

Description

Value Range

Input/Output

len

Byte length (HMPP_Malloc function)

Array length (HMPPS_Malloc_xxx function)

> 0

Input

ptr

Pointer to the memory block to be released (Free function)

The value cannot be NULL.

Input

Return Value

HMPP_Malloc function:

Success: The start pointer to the allocated memory is returned.
Failure: NULL

Note

The input parameter of the Free function must be the return value of the Malloc function.

Example

#define BUFFER_SIZE 100
void Malloc_Free_Example() {
    void *ptr = HMPP_Malloc(BUFFER_SIZE);
    int suc = (ptr != NULL);
    HMPP_Free(ptr);
    uint8_t *ptrs = HMPPS_Malloc_8u(BUFFER_SIZE);
    suc = suc & (ptrs != NULL);
    HMPPS_Free(ptrs);
    printf("%d", suc);
}

Output:

Parent topic: Basic Functions