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Make concat_string_ref_count constexpr

This commit is contained in:
Tatsuhiro Tsujikawa 2022-06-22 23:59:07 +09:00
parent ad7fc183d1
commit 6596cce8fb
1 changed files with 3 additions and 3 deletions
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6
src/allocator.h
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@ -190,14 +190,14 @@ StringRef make_string_ref(BlockAllocator &alloc, const StringRef &src) {
// private function used in concat_string_ref. this is the base // private function used in concat_string_ref. this is the base
// function of concat_string_ref_count(). // function of concat_string_ref_count().
inline size_t concat_string_ref_count(size_t acc) { return acc; } inline constexpr size_t concat_string_ref_count(size_t acc) { return acc; }
// private function used in concat_string_ref. This function counts // private function used in concat_string_ref. This function counts
// the sum of length of given arguments. The calculated length is // the sum of length of given arguments. The calculated length is
// accumulated, and passed to the next function. // accumulated, and passed to the next function.
template <typename... Args> template <typename... Args>
size_t concat_string_ref_count(size_t acc, const StringRef &value, constexpr size_t concat_string_ref_count(size_t acc, const StringRef &value,
Args &&...args) { Args &&...args) {
return concat_string_ref_count(acc + value.size(), return concat_string_ref_count(acc + value.size(),
std::forward<Args>(args)...); std::forward<Args>(args)...);
} }