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< a href = "#func-members" > Functions</ a > </ div >
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< div class = "headertitle" >< div class = "title" > Aligned Allocation</ div ></ div >
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</ div > <!--header-->
< div class = "contents" >
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< p > Allocating aligned memory blocks.
< a href = "#details" > More...</ a ></ p >
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< tr class = "heading" >< td colspan = "2" >< h2 class = "groupheader" >< a id = "func-members" name = "func-members" ></ a >
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Functions</ h2 ></ td ></ tr >
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< tr class = "memitem:ga69578ff1a98ca16e1dcd02c0995cd65c" id = "r_ga69578ff1a98ca16e1dcd02c0995cd65c" >< td class = "memItemLeft" align = "right" valign = "top" > void *  </ td >< td class = "memItemRight" valign = "bottom" >< a class = "el" href = "#ga69578ff1a98ca16e1dcd02c0995cd65c" > mi_malloc_aligned</ a > (size_t size, size_t alignment)</ td ></ tr >
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< tr class = "memdesc:ga69578ff1a98ca16e1dcd02c0995cd65c" >< td class = "mdescLeft" >   </ td >< td class = "mdescRight" > Allocate < em class = "arg" > size</ em > bytes aligned by < em class = "arg" > alignment</ em > . < br /></ td ></ tr >
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< tr class = "memdesc:ga2022f71b95a7cd6cce1b6e07752ae8ca" >< td class = "mdescLeft" >   </ td >< td class = "mdescRight" > Allocate < em class = "arg" > size</ em > bytes aligned by < em class = "arg" > alignment</ em > at a specified < em class = "arg" > offset</ em > . < br /></ td ></ tr >
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< tr class = "memitem:ga7c1778805ce50ebbf02ccbd5e39d5dba" id = "r_ga7c1778805ce50ebbf02ccbd5e39d5dba" >< td class = "memItemLeft" align = "right" valign = "top" > void *  </ td >< td class = "memItemRight" valign = "bottom" >< a class = "el" href = "#ga7c1778805ce50ebbf02ccbd5e39d5dba" > mi_zalloc_aligned_at</ a > (size_t size, size_t alignment, size_t offset)</ td ></ tr >
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< a name = "details" id = "details" ></ a >< h2 class = "groupheader" > Detailed Description</ h2 >
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< p > Allocating aligned memory blocks. </ p >
< p > Note that < code > alignment</ code > always follows < code > size</ code > for consistency with the unaligned allocation API, but unfortunately this differs from < code > posix_memalign</ code > and < code > aligned_alloc</ code > in the C library. </ p >
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< h2 class = "groupheader" > Function Documentation</ h2 >
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< a id = "ga424ef386fb1f9f8e0a86ab53f16eaaf1" name = "ga424ef386fb1f9f8e0a86ab53f16eaaf1" ></ a >
< h2 class = "memtitle" >< span class = "permalink" >< a href = "#ga424ef386fb1f9f8e0a86ab53f16eaaf1" > ◆  </ a ></ span > mi_calloc_aligned()</ h2 >
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< td > (</ td >
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< td class = "paramtype" > size_t</ td > < td class = "paramname" >< span class = "paramname" >< em > count</ em ></ span > , </ td >
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< td class = "paramkey" ></ td >
< td ></ td >
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< td class = "paramtype" > size_t</ td > < td class = "paramname" >< span class = "paramname" >< em > size</ em ></ span > , </ td >
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< td class = "paramkey" ></ td >
< td ></ td >
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< td class = "paramtype" > size_t</ td > < td class = "paramname" >< span class = "paramname" >< em > alignment</ em ></ span >   )</ td >
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< a id = "ga977f96bd2c5c141bcd70e6685c90d6c3" name = "ga977f96bd2c5c141bcd70e6685c90d6c3" ></ a >
< h2 class = "memtitle" >< span class = "permalink" >< a href = "#ga977f96bd2c5c141bcd70e6685c90d6c3" > ◆  </ a ></ span > mi_calloc_aligned_at()</ h2 >
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< td class = "memname" > void * mi_calloc_aligned_at </ td >
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< td > (</ td >
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< td class = "paramtype" > size_t</ td > < td class = "paramname" >< span class = "paramname" >< em > count</ em ></ span > , </ td >
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< td class = "paramkey" ></ td >
< td ></ td >
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< td class = "paramtype" > size_t</ td > < td class = "paramname" >< span class = "paramname" >< em > size</ em ></ span > , </ td >
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< td class = "paramkey" ></ td >
< td ></ td >
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< td class = "paramtype" > size_t</ td > < td class = "paramname" >< span class = "paramname" >< em > alignment</ em ></ span > , </ td >
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< td class = "paramkey" ></ td >
< td ></ td >
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< td class = "paramtype" > size_t</ td > < td class = "paramname" >< span class = "paramname" >< em > offset</ em ></ span >   )</ td >
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< h2 class = "memtitle" >< span class = "permalink" >< a href = "#ga69578ff1a98ca16e1dcd02c0995cd65c" > ◆  </ a ></ span > mi_malloc_aligned()</ h2 >
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< td > (</ td >
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< td class = "paramtype" > size_t</ td > < td class = "paramname" >< span class = "paramname" >< em > size</ em ></ span > , </ td >
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< td ></ td >
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< p > Allocate < em class = "arg" > size</ em > bytes aligned by < em class = "arg" > alignment</ em > . </ p >
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< dl class = "params" >< dt > Parameters</ dt >< dd >
< table class = "params" >
< tr >< td class = "paramname" > size</ td >< td > number of bytes to allocate. </ td ></ tr >
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< tr >< td class = "paramname" > alignment</ td >< td > the minimal alignment of the allocated memory. </ td ></ tr >
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</ table >
</ dd >
</ dl >
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< dl class = "section return" >< dt > Returns</ dt >< dd > pointer to the allocated memory or < em class = "arg" > NULL</ em > if out of memory, or if the alignment is not a power of 2 (including 0). The < em class = "arg" > size</ em > is unrestricted (and does not have to be an integral multiple of the < em class = "arg" > alignment</ em > ). The returned pointer is aligned by < em class = "arg" > alignment</ em > , i.e. < code > (uintptr_t)p % alignment == 0</ code > . Returns a unique pointer if called with < em class = "arg" > size</ em > 0.</ dd ></ dl >
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< p > Note that < code > alignment</ code > always follows < code > size</ code > for consistency with the unaligned allocation API, but unfortunately this differs from < code > posix_memalign</ code > and < code > aligned_alloc</ code > in the C library.</ p >
< dl class = "section see" >< dt > See also</ dt >< dd >< a href = "https://en.cppreference.com/w/c/memory/aligned_alloc" > aligned_alloc</ a > (in the standard C11 library, with switched arguments!) </ dd >
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< dd >
< a href = "https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/aligned-malloc?view=vs-2017" > _aligned_malloc</ a > (on Windows) </ dd >
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< dd >
< a href = "http://man.openbsd.org/reallocarray" > aligned_alloc</ a > (on BSD, with switched arguments!) </ dd >
< dd >
< a href = "https://linux.die.net/man/3/posix_memalign" > posix_memalign</ a > (on Posix, with switched arguments!) </ dd >
< dd >
< a href = "https://linux.die.net/man/3/posix_memalign" > memalign</ a > (on Linux, with switched arguments!) </ dd ></ dl >
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< h2 class = "memtitle" >< span class = "permalink" >< a href = "#ga2022f71b95a7cd6cce1b6e07752ae8ca" > ◆  </ a ></ span > mi_malloc_aligned_at()</ h2 >
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< td class = "memname" > void * mi_malloc_aligned_at </ td >
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< td > (</ td >
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< td class = "paramtype" > size_t</ td > < td class = "paramname" >< span class = "paramname" >< em > size</ em ></ span > , </ td >
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</ tr >
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< td class = "paramkey" ></ td >
< td ></ td >
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< td class = "paramtype" > size_t</ td > < td class = "paramname" >< span class = "paramname" >< em > alignment</ em ></ span > , </ td >
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< td class = "paramkey" ></ td >
< td ></ td >
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< td class = "paramtype" > size_t</ td > < td class = "paramname" >< span class = "paramname" >< em > offset</ em ></ span >   )</ td >
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</ tr >
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< p > Allocate < em class = "arg" > size</ em > bytes aligned by < em class = "arg" > alignment</ em > at a specified < em class = "arg" > offset</ em > . </ p >
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< dl class = "params" >< dt > Parameters</ dt >< dd >
< table class = "params" >
< tr >< td class = "paramname" > size</ td >< td > number of bytes to allocate. </ td ></ tr >
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< tr >< td class = "paramname" > alignment</ td >< td > the minimal alignment of the allocated memory at < em class = "arg" > offset</ em > . </ td ></ tr >
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< tr >< td class = "paramname" > offset</ td >< td > the offset that should be aligned. </ td ></ tr >
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< dl class = "section return" >< dt > Returns</ dt >< dd > pointer to the allocated memory or < em class = "arg" > NULL</ em > if out of memory, or if the alignment is not a power of 2 (including 0). The < em class = "arg" > size</ em > is unrestricted (and does not have to be an integral multiple of the < em class = "arg" > alignment</ em > ). The returned pointer is aligned by < em class = "arg" > alignment</ em > , i.e. < code > (uintptr_t)p % alignment == 0</ code > . Returns a unique pointer if called with < em class = "arg" > size</ em > 0.</ dd ></ dl >
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< dl class = "section see" >< dt > See also</ dt >< dd >< a href = "https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/aligned-offset-malloc?view=vs-2017" > _aligned_offset_malloc</ a > (on Windows) </ dd ></ dl >
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