invalidTestForOverflow ftp://ftp.de.debian.org/debian/pool/main/a/ascii-patrol/ascii-patrol_1.7+dfsg.orig.tar.xz ascii-patrol-1.7/stb_vorbis.cpp:1369:75: warning: Invalid test for overflow 'f->stream_start+locstream_start'; pointer overflow is undefined behavior. Some mainstream compilers remove such overflow tests when optimising the code and assume it's always false. [invalidTestForOverflow] ftp://ftp.de.debian.org/debian/pool/main/v/vmem/vmem_1.8.orig.tar.gz vmem-1.8/src/common/os_windows.c:324:19: warning: Invalid test for overflow 'offset+len=glyph'; signed integer overflow is undefined behavior. Some mainstream compilers remove such overflow tests when optimising the code and assume it's always true. [invalidTestForOverflow] ftp://ftp.de.debian.org/debian/pool/main/z/zbar/zbar_0.23.93.orig.tar.gz zbar-0.23.93/zbar/qrcode/qrdec.c:2297:19: warning: Invalid test for overflow 'rv+drv>rv'; signed integer overflow is undefined behavior. Some mainstream compilers removes handling of overflows when optimising the code and change the code to 'drv>0'. [invalidTestForOverflow] zbar-0.23.93/zbar/qrcode/qrdec.c:2346:19: warning: Invalid test for overflow 'bu+dbu>bu'; signed integer overflow is undefined behavior. Some mainstream compilers removes handling of overflows when optimising the code and change the code to 'dbu>0'. [invalidTestForOverflow]