Hello.

I noticed CC-Mode sometimes doesn't identify correctly function names
when a macro name is involved in the function definition.  Try the
following recipe to see the problem:

1) emacs -Q
2) C-x C-f test.c
3) Type the following function definitions:

int DUMMY
foo (void)
{
  return 1;
}

DUMMY int
bar (void)
{
  return 0;
}

4) Observe that:
a) foo doesn't get fontified with font-lock-function-name-face, but
DUMMY does.  Consequently, C-c C-z inside foo echoes
DUMMY as the function name, in the echo area.
b) In bar, DUMMY gets font-lock-type-face, which I don't
think is correct.  bar gets font-lock-function-name-face and C-c C-z
works as expected.

---

Other problem is with fontification of the return type in the following:

bool DUMMY
baz_t (void)
{
  return true;
}

bool
baz_f (void)
{
  return false;
}

Observe that bool doesn't get fontified in baz_t, but DUMMY does.  When
DUMMY is not present, bool gets fontified correctly (as in baz_f).


If it helps, I found the problem in a source file with functions that
have macros that declare some function attributes, like
_GL_ATTRIBUTE_PURE.

Best regards,
Mauro.



In GNU Emacs 27.0.50 (build 5, i686-pc-linux-gnu, GTK+ Version 3.18.9)
 of 2019-05-15 built on the-blackbeard
Repository revision: 50b1ce0185cd7b5f8be124eb4a612fd56e4e0657
Repository branch: revert-buffer-with-fine-grain
Windowing system distributor 'The X.Org Foundation', version 11.0.11906000
System Description: Ubuntu 16.04.6 LTS

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 'configure CFLAGS=-O3'

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