Malloc

Intel® Integrated Performance Primitives (Intel® IPP) Developer Guide and Reference

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ID 790148

Date 4/28/2026

Version

Public

Malloc

Allocates memory aligned to 64-byte boundary.

Syntax

Case 1: Memory allocation for blocks of 32-bit length

Ipp8u* ippsMalloc_8u(int len);

Ipp16u* ippsMalloc_16u(int len);

Ipp32u* ippsMalloc_32u(int len);

Ipp8s* ippsMalloc_8s(int len);

Ipp16s* ippsMalloc_16s(int len);

Ipp32s* ippsMalloc_32s(int len);

Ipp64s* ippsMalloc_64s(int len);

Ipp32f* ippsMalloc_32f(int len);

Ipp64f* ippsMalloc_64f(int len);

Ipp8sc* ippsMalloc_8sc(int len);

Ipp16sc* ippsMalloc_16sc(int len);

Ipp32sc* ippsMalloc_32sc(int len);

Ipp64sc* ippsMalloc_64sc(int len);

Ipp32fc* ippsMalloc_32fc(int len);

Ipp64fc* ippsMalloc_64fc(int len);

Case 2: Memory allocation for platform-aware functions

Ipp8u* ippsMalloc_8u_L(IppSizeL len);

Ipp16u* ippsMalloc_16u_L(IppSizeL len);

Ipp32u* ippsMalloc_32u_L(IppSizeL len);

Ipp8s* ippsMalloc_8s_L(IppSizeL len);

Ipp16s* ippsMalloc_16s_L(IppSizeL len);

Ipp32s* ippsMalloc_32s_L(IppSizeL len);

Ipp64s* ippsMalloc_64s_L(IppSizeL len);

Ipp32f* ippsMalloc_32f_L(IppSizeL len);

Ipp64f* ippsMalloc_64f_L(IppSizeL len);

Ipp8sc* ippsMalloc_8sc_L(IppSizeL len);

Ipp16sc* ippsMalloc_16sc_L(IppSizeL len);

Ipp32sc* ippsMalloc_32sc_L(IppSizeL len);

Ipp64sc* ippsMalloc_64sc_L(IppSizeL len);

Ipp32fc* ippsMalloc_32fc_L(IppSizeL len);

Ipp64fc* ippsMalloc_64fc_L(IppSizeL len);

Include Files

ipps.h

Flavors with the _L suffix: ipps_l.h

Domain Dependencies

Headers: ippcore.h, ippvm.h

Libraries: ippcore.lib, ippvm.lib

Parameters

len

Number of elements to allocate.

Description

This function allocates memory block aligned to 64-byte boundary for elements of different data types.

The function ippsMalloc_<dataType> uses a 32-bit length, allowing it to allocate memory up to approximately 2GB. If a larger memory size is requested, the function will return a NULL pointer. To allocate memory exceeding this limit, use the platform-aware Malloc function (ippsMalloc_<dataType>_L).

NOTE:

Not aligned memory allocation could cause not reproducibleperformance and precision results.

Example

The following example shows how to use the ippsMalloc_8u function:

void func_malloc(void)
{
    Ipp8u* pBuf = ippsMalloc_8u(8*sizeof(Ipp8u));
    if(NULL == pBuf)
      // not enough memory


    ippsFree(pBuf);
}

Return Values

The return value of ippsMalloc is a pointer to an aligned memory block. If no memory is available in the system, then the NULL value is returned. To free this block, use the ippsFree function.

See Also

Free Frees memory allocated by the function ippsMalloc.

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Intel® Integrated Performance Primitives (Intel® IPP) Developer Guide and Reference

Malloc

Syntax

Include Files

Domain Dependencies

Parameters

Description

Example

Return Values