Re: enums and switch vs function calls

Richard Harnden <richard.nospam@gmail.invalid> wrote or quoted:

int hex = colour_to_hex(10);
... then the compiler doesn't complain that 10 is not in the enum.
Why? Surely the compiler can tell.

  I get

|
|error: enum conversion when passing argument 1 of 'colour_to_hex' is invalid in C++ [-Wc++-compat]
|      |int hex = colour_to_hex(10);
|      |                        ^~
|note: expected 'enum colour' but argument is of type 'int'
|      | int colour_to_hex(enum colour colour)
|      |     ^~~~~~~~~~~~~
|

  with

gcc -Wc++-compat

  .