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ircd::util: Add alignment gauge to suite.

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This commit is contained in:
Jason Volk 2022-10-01 21:57:54 +00:00
parent 736c8014dd
commit 6827994a62
1 changed files with 15 additions and 0 deletions
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15
include/ircd/util/align.h
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@ -21,6 +21,7 @@ inline namespace util
constexpr size_t pad_to(const size_t size, const size_t alignment);
constexpr uintptr_t align(uintptr_t, size_t alignment);
constexpr uintptr_t align_up(uintptr_t, size_t alignment);
constexpr ulong alignment(const uintptr_t);
// Alignment inline tools
bool aligned(const void *const &, const size_t &alignment);
@ -29,8 +30,16 @@ inline namespace util
template<class T = char> T *align(void *const &, const size_t &alignment);
template<class T = char> const T *align_up(const void *const &, const size_t &alignment);
template<class T = char> T *align_up(void *const &, const size_t &alignment);
ulong alignment(const void *const &);
}}
[[gnu::always_inline]]
inline ulong
ircd::util::alignment(const void *const &ptr)
{
return alignment(uintptr_t(ptr));
}
template<class T>
[[gnu::always_inline]]
inline T *
@ -95,6 +104,12 @@ ircd::util::aligned(const volatile void *const &ptr,
return aligned(uintptr_t(ptr), alignment);
}
constexpr ulong
ircd::util::alignment(const uintptr_t ptr)
{
return 1UL << __builtin_ctzl(ptr);
}
constexpr uintptr_t
ircd::util::align_up(uintptr_t ptr,
size_t alignment)