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Update comment; commute static_assert to requires.

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Thomas Harte
2026-02-15 22:41:59 -05:00
parent 3283e3313a
commit 1f9445c45c
1 changed files with 2 additions and 3 deletions
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Numeric/BitReverse.hpp
+2 -3
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@@ -19,7 +19,7 @@ namespace Numeric {
/// the reverse of bit pattern abcd efgh is hgfd dcba.
template <typename IntT> constexpr IntT bit_reverse(IntT source);
// The single-byte specialisation uses a lookup table.
// Single-byte specialisation.
template<> constexpr uint8_t bit_reverse<uint8_t>(uint8_t source) {
source = uint8_t(((source & 0b1111'0000) >> 4) | ((source & 0b0000'1111) << 4));
source = uint8_t(((source & 0b1100'1100) >> 2) | ((source & 0b0011'0011) << 2));
@@ -29,9 +29,8 @@ template<> constexpr uint8_t bit_reverse<uint8_t>(uint8_t source) {
// All other versions recursively subdivide.
template <typename IntT>
requires std::same_as<IntT, uint16_t> || std::same_as<IntT, uint32_t> || std::same_as<IntT, uint64_t>
constexpr IntT bit_reverse(const IntT source) {
static_assert(std::is_same_v<IntT, uint16_t> || std::is_same_v<IntT, uint32_t> || std::is_same_v<IntT, uint64_t>);
constexpr auto HalfSize = sizeof(IntT) * 4;
using HalfIntT = uint_t<HalfSize>;