On Sun, Jul 5, 2009 at 11:19 AM, Bruno Haible<br...@clisp.org> wrote: > About the unit test: > >> +#define STREQ(s1, s2) ((strcmp (s1, s2) == 0)) > > What is the reason for the extra parentheses? Is some gcc warning avoided > by this?
Well, that technique does protect you against bugs resulting from various odd usages, such as "STREQ(a,b) < 1". Without the parens, you get the same effect as "strcmp (a, b) == 1". James.
