412 B
412 B
Compilers now have a has_define
method
This method returns true if the given preprocessor symbol is
defined, else false is returned. This is useful is cases where
an empty define has to be distinguished from a non-set one, which
is not possible using get_define
.
Additionally it makes intent clearer for code that only needs to check if a specific define is set at all and does not care about its value.