std::to_string
imbue()
streams << >>
snprintf (C)
to_chars, from_chars See here
from_chars:
https://github.com//dtoa-benchmark
https://news.ycombinator.com/item?id=17633282
std::format
GCC 13
https://github.com/gcc-mirror/gcc/blob/master/libstdc%2B%2B-v3/include/std/format
https://github.com/gcc-mirror/gcc/commit/1d9454aba615ea
Clang 15. 17 - 'stable'
MSVC 2019, 2022
std < C++20 : fmtlib