1+++ 2title = "`BOOST_OUTCOME_REQUIRES(...)`" 3description = "A C++ 20 `requires(...)`, if available." 4+++ 5 6A C++ 20 `requires(...)`, if available. 7 8*Overridable*: Define before inclusion. 9 10*Default*: To `requires(...)` if on C++ 20 or later, else to nothing. 11 12*Header*: `<boost/outcome/config.hpp>`