Paul Eggert dixit: > […] gcc -O2 makes no promises without > -fwrapv.
gcc -O1 -fwrapv even doesn't work correctly for gcc3, and gcc2 and gcc <3.3(?) don't even have -fwrapv: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30477 bye, //mirabile -- "Using Lynx is like wearing a really good pair of shades: cuts out the glare and harmful UV (ultra-vanity), and you feel so-o-o COOL." -- Henry Nelson, March 1999