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Add copy2() constexpr

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This commit is contained in:
Roman Koshelev 2021-09-12 18:07:16 +03:00
parent 3a04481485
commit 3f5e3cbb2c
1 changed files with 6 additions and 4 deletions
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10
include/fmt/format.h
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@ -1073,11 +1073,13 @@ inline auto equal2(const char* lhs, const char* rhs) -> bool {
}
// Copies two characters from src to dst.
template <typename Char> void copy2(Char* dst, const char* src) {
*dst++ = static_cast<Char>(*src++);
*dst = static_cast<Char>(*src);
template <typename Char>
FMT_CONSTEXPR void copy2(Char* dst, const char* src) {
char dc0 = *src++;
char dc1 = *src;
*dst++ = static_cast<Char>(dc0);
*dst = static_cast<Char>(dc1);
}
FMT_INLINE void copy2(char* dst, const char* src) { memcpy(dst, src, 2); }
template <typename Iterator> struct format_decimal_result {
Iterator begin;