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AK: Make StringView::hash() constexpr

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This required moving string_hash() to its own header so that everyone
can see it.
This commit is contained in:
Andreas Kling 2021-05-14 15:21:50 +02:00
parent 9c38475608
commit 3e603b2f32
5 changed files with 36 additions and 25 deletions
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15
AK/StringImpl.h
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@ -96,20 +96,6 @@ private:
char m_inline_buffer[0];
};
constexpr u32 string_hash(const char* characters, size_t length)
{
u32 hash = 0;
for (size_t i = 0; i < length; ++i) {
hash += (u32)characters[i];
hash += (hash << 10);
hash ^= (hash >> 6);
}
hash += hash << 3;
hash ^= hash >> 11;
hash += hash << 15;
return hash;
}
template<>
struct Formatter<StringImpl> : Formatter<StringView> {
void format(FormatBuilder& builder, const StringImpl& value)
@ -122,5 +108,4 @@ struct Formatter<StringImpl> : Formatter<StringView> {
using AK::Chomp;
using AK::NoChomp;
using AK::string_hash;
using AK::StringImpl;