https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64294
Andreas Schwab <sch...@linux-m68k.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Resolution|--- |INVALID --- Comment #1 from Andreas Schwab <sch...@linux-m68k.org> --- This condition is true if backsize == 0: if(!((bufsz) > 0 && (backsize) > 0 && (size_t)(backsize) <= (size_t)(bufsz) && (ddst) >= (buf) && ((ddst) + (backsize)) <= ((buf) + (bufsz)) && ((ddst) + (backsize)) > (buf) && (ddst) < ((buf) + (bufsz))) || !((bufsz) > 0 && (backsize) > 0 && (size_t)(backsize) <= (size_t)(bufsz) && (ddst+backbytes) >= (buf) && ((ddst+backbytes) + (backsize)) <= ((buf) + (bufsz)) && ((ddst+backbytes) + (backsize)) > (buf) && (ddst+backbytes) < ((buf) + (bufsz)))) {