Closed rubenvb closed 4 years ago
This would expand to if constexpr where available, and plain if where it's not.
if constexpr
if
This can help write "correct" code and suppress warnings when doing plain if on compile-time constants such as trait expressions.
An example of this is found here: https://github.com/boostorg/spirit/blob/develop/include/boost/spirit/home/x3/char/detail/cast_char.hpp#L33
Having this macro prevents further (verbose) proliferation of locally disabling the warning.
Done
jzmaddock
commented
4 years ago jzmaddock
commented
4 years ago
This would expand to
if constexprwhere available, and plainifwhere it's not.This can help write "correct" code and suppress warnings when doing plain
ifon compile-time constants such as trait expressions.An example of this is found here: https://github.com/boostorg/spirit/blob/develop/include/boost/spirit/home/x3/char/detail/cast_char.hpp#L33
Having this macro prevents further (verbose) proliferation of locally disabling the warning.