Re: [cocci] GNU-style function calls

There is a =E2=80=94simple-spacing argument where it should preserve the spa=
cing you put in the semantic patch.
Sent from my iPhone

> On 6 Jul 2026, at 13:50, Arsen Arsenovi=C4=87 <[email protected]> wr=
ote:
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> =EF=BB=BFHi!
>=20
> I work on GCC, meaning we use GNU-style function calls, where the
> call operator is preceded by a whitespace, like so:
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>  foo (a, b);
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> I've had decent luck with applying Cocci to the codebase, but if Cocci
> rewrites a call, it removes the whitespace preceding the call operator:
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>  /tmp$ cat test.cc
>  void
>  thing ()
>  {
>    foo (a, b);
>  }
>  /tmp$ cat test.cocci
>  @@
>  expression x, y;
>  @@
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>  - foo (x, y);
>  + foo (y, x);
>  /tmp$ spatch --sp-file test.cocci --c++=3D14 test.cc
>  init_defs_builtins: /usr/lib64/coccinelle/standard.h
>  HANDLING: test.cc
>  diff =3D
>  --- test.cc
>  +++ /tmp/cocci-output-157607-636042-test.cc
>  @@ -1,5 +1,5 @@
>   void
>   thing ()
>   {
>  -  foo (a, b);
>  +  foo(b, a);
>   }
>  /tmp$
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> This isn't too much of a problem; I go back and modify the function
> calls manually, but it would be nice if Cocci handled it.
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> Is it possible to keep the spaces in line with the code style w/ Cocci?
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> Thanks in advance!  Have a lovely day.
> --
> Arsen Arsenovi=C4=87
> <signature.asc>