------- Comment #10 from mark at gcc dot gnu dot org 2009-09-08 12:33 -------
This is slightly annoying when used with -Wall -Werror. The following code
suddenly doesn't compile anymore. While a trivial rewrite, declaring the
variable and assigning it in the next statement, makes it build again this
doesn't really make sense IMHO since the code is identical (the original is
just more concise because it is one line).
int func(int i)
{
int result = -1;
if (i == 3)
{
result = 5;
goto end;
}
int j = 16;
/* Must be rewritten to to avoid warning/error with -Wall -Werror:
int j;
j = 16;
*/
if (i > j)
result = i;
else
result = j;
end:
return result;
}
$ gcc -Wall -Werror -c -o jump.o jump.c
cc1: warnings being treated as errors
jump.c: In function func:
jump.c:7:7: error: jump skips variable initialization
jump.c:20:1: note: label end defined here
jump.c:10:7: note: j declared here
gcc (GCC) 4.5.0 20090908 (experimental) [trunk revision 151507]
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40500
