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Improve integer to_chars efficiency

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This commit is contained in:
Matt Borland
2023-08-07 10:31:25 -04:00
parent 43042ed358
commit f951969211
1 changed files with 4 additions and 6 deletions
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10
include/boost/charconv/detail/to_chars_integer_impl.hpp
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@@ -185,9 +185,8 @@ BOOST_CHARCONV_CONSTEXPR to_chars_result to_chars_integer_impl(char* first, char
decompose32(y, buffer);
boost::charconv::detail::memcpy(first + 8, buffer + 1, sizeof(buffer) - 1);
// TODO(mborland): This is always 2 so can probably replace with something more efficient than 10
decompose32(z, buffer);
boost::charconv::detail::memcpy(first + 17, buffer + 8, 2);
// Always prints 2 digits last
boost::charconv::detail::memcpy(first + 17, radix_table + z * 2, 2);
}
else // 20
{
@@ -197,9 +196,8 @@ BOOST_CHARCONV_CONSTEXPR to_chars_result to_chars_integer_impl(char* first, char
decompose32(y, buffer);
boost::charconv::detail::memcpy(first + 9, buffer + 1, sizeof(buffer) - 1);
// TODO(mborland): This is always 2 so can probably replace with something more efficient than 10
decompose32(z, buffer);
boost::charconv::detail::memcpy(first + 18, buffer + 8, 2);
// Always prints 2 digits last
boost::charconv::detail::memcpy(first + 18, radix_table + z * 2, 2);
}
}
}