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align.h
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1 //
2 // Copyright 2016 Pixar
3 //
4 // Licensed under the Apache License, Version 2.0 (the "Apache License")
5 // with the following modification; you may not use this file except in
6 // compliance with the Apache License and the following modification to it:
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14 // You may obtain a copy of the Apache License at
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24 #ifndef ARCH_ALIGN_H
25 #define ARCH_ALIGN_H
26 
30 
31 #if !defined(__cplusplus)
32 #error This include file can only be included in C++ programs.
33 #endif
34 
35 #include "pxr/pxr.h"
36 #include "pxr/base/arch/defines.h"
37 #include <cstddef>
38 #include <cstdint>
39 
40 PXR_NAMESPACE_OPEN_SCOPE
41 
44 
52 inline size_t
53 ArchAlignMemorySize(size_t nBytes) {
54  return (nBytes + 7) & (~0x7);
55 }
56 
63 #define ARCH_MAX_ALIGNMENT_INCREASE 7
64 
70 inline void *
71 ArchAlignMemory(void *base)
72 {
73  return reinterpret_cast<void *>
74  ((reinterpret_cast<uintptr_t>(base) + 7) & ~0x7);
75 }
76 
80 #define ARCH_CACHE_LINE_SIZE 64
81 
83 
84 PXR_NAMESPACE_CLOSE_SCOPE
85 
86 #endif // ARCH_ALIGN_H
void * ArchAlignMemory(void *base)
Align memory to the next &quot;best&quot; alignment value.
Definition: align.h:71
size_t ArchAlignMemorySize(size_t nBytes)
Return suitably aligned memory size.
Definition: align.h:53