[Bug c/20709] strict aliasing warning with float pointer pointing to int pointer
pinskia at gcc dot gnu dot org
gcc-bugzilla@gcc.gnu.org
Sat Apr 2 00:09:00 GMT 2005
------- Additional Comments From pinskia at gcc dot gnu dot org 2005-04-02 00:09 -------
Because we only warn if you take the address and then cast so if you have a tempary variable
inbetween, we don't warn.
Note really strict aliasing warnings are hard to produce as it is only a bug if you access via those two
types.
Aka this is valid and defined (even though we warn):
float a(float b)
{
int i;
*(float*)&i = b;
return *(float*)&i;
}
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20709
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