fast_io is a C++ general-purpose exception-safe RAII I/O library based on C++ 20 Concepts. It is at least ten times faster than cstdio or iostream.
concepts
libc
sha256
stdio
raii
msvc
std
glibc
iostream
hmac-sha512
cstdio
libstdc
hacks-platforms
supported-concepts
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Updated
Jul 8, 2020 - C++