http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55873
--- Comment #3 from Manuel López-Ibáñez <manu at gcc dot gnu.org> 2013-01-05
12:15:35 UTC ---
PR18501, the most frequently reported Wuninitialized bug.
Of course, it is possible to fix it. Clang does warn:
pr18501.c:5:7: warning: variable 'res' is used uninitialized whenever 'if'
condition is false [-Wsometimes-uninitialized]
if (c)
^
pr18501.c:7:10: note: uninitialized use occurs here
return res;
^~~
pr18501.c:5:3: note: remove the 'if' if its condition is always true
if (c)
^~~~~~
pr18501.c:4:10: note: initialize the variable 'res' to silence this warning
int res;
^
= 0
1 warning generated.
It is just that it probably needs some serious amount of work.
