std::enable_nonlocking_formatter_optimization

Since C++23

Header: <format>

This template can be used by implementations to enable efficient implementations of std::print and std::println.

# Declarations

template< class T >
constexpr bool enable_nonlocking_formatter_optimization = false;

(since C++23)

# Notes

Feature-test macro Value Std Feature __cpp_lib_print 202403L (C++26)(DR23) Formatted output with stream locking 202406L (C++26)(DR23) Enabling nonlocking formatter optimization for more formattable types

# See also