[Debian-med-packaging] Bug#731435: warning: iteration 55823u invokes undefined behavior [-Waggressive-loop-optimizations]

Mathieu Malaterre malat at debian.org
Thu Dec 5 13:00:59 UTC 2013


Package: gdcm

gdcm currently compiles with:

cd /«PKGBUILDDIR»/obj-i486-linux-gnu/Utilities/gdcmjpeg/8 &&
/usr/bin/cc  -Dgdcmjpeg8_EXPORTS -g -O2 -fstack-protector
--param=ssp-buffer-size=4 -Wformat -Werror=format-security
-D_FORTIFY_SOURCE=2  -fPIC -I/«PKGBUILDDIR»/Utilities/gdcmjpeg/8
-I/«PKGBUILDDIR»/obj-i486-linux-gnu/Utilities/gdcmjpeg/8
-I/«PKGBUILDDIR»/obj-i486-linux-gnu/Utilities/gdcmjpeg    -o
CMakeFiles/gdcmjpeg8.dir/__/jccolor.c.o   -c
/«PKGBUILDDIR»/Utilities/gdcmjpeg/jccolor.c
/«PKGBUILDDIR»/Utilities/gdcmjpeg/jccolor.c: In function 'rgb_ycc_start':
/«PKGBUILDDIR»/Utilities/gdcmjpeg/jccolor.c:99:43: warning: iteration
55823u invokes undefined behavior [-Waggressive-loop-optimizations]
     rgb_ycc_tab[i+G_Y_OFF] = FIX(0.58700) * i;
                                           ^
/«PKGBUILDDIR»/Utilities/gdcmjpeg/jccolor.c:97:3: note: containing loop
   for (i = 0; i <= MAXJSAMPLE; i++) {
   ^
/usr/bin/cmake -E cmake_progress_report
/«PKGBUILDDIR»/obj-i486-linux-gnu/CMakeFiles



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