------- Additional Comments From pinskia at gcc dot gnu dot org 2005-09-22 17:06 ------- (In reply to comment #6) > Hello and thanks for the quick answer! Yes it does! But: I am not getting the > warning: operation on `data' may be undefined > > when using gcc 3.4.4 and -Wall.
Try at -O0, glibc changes tolower to a macro which causes issues with the warning, I will file another bug about that soon. The short testcase for your issue would be: #include <ctype.h> void strtolower(char *data) { while (*data != '\0') *data++ = tolower(*data); } *** This bug has been marked as a duplicate of 11751 *** -- What |Removed |Added ---------------------------------------------------------------------------- Status|WAITING |RESOLVED Resolution| |DUPLICATE http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24015