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Added find first set.

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This commit is contained in:
Branimir Karadžić
2023-11-18 10:50:42 -08:00
parent 1c53c4617f
commit 610a2e468d
3 changed files with 25 additions and 0 deletions
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7
include/bx/inline/uint32_t.inl
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@@ -453,6 +453,13 @@ namespace bx
template<> inline BX_CONSTEXPR_FUNC uint32_t uint32_cnttz(int32_t _val) { return uint32_cnttz<uint32_t>(_val); }
template<> inline BX_CONSTEXPR_FUNC uint32_t uint32_cnttz(int64_t _val) { return uint32_cnttz<uint64_t>(_val); }
template<typename Ty>
inline BX_CONSTEXPR_FUNC uint32_t uint32_ffs(Ty _x)
{
return Ty(0) == _x ? uint32_t(0) : uint32_cnttz<Ty>(_x) + 1;
}
inline BX_CONSTEXPR_FUNC uint32_t uint32_part1by1(uint32_t _a)
{
// shuffle:

5
include/bx/uint32_t.h
View File

@@ -162,6 +162,11 @@ namespace bx
template<typename Ty>
BX_CONSTEXPR_FUNC uint32_t uint32_cnttz(Ty _val);
/// Find first set.
///
template<typename Ty>
BX_CONSTEXPR_FUNC uint32_t uint32_ffs(Ty _val);
///
BX_CONSTEXPR_FUNC uint32_t uint32_part1by1(uint32_t _a);