[libav-bugs] [Bug 686] New: jrevdct.c:310:47: runtime error: left shift of negative value -14

bugzilla at libav.org bugzilla at libav.org
Mon May 19 16:17:57 CEST 2014


http://bugzilla.libav.org/show_bug.cgi?id=686

           Summary: jrevdct.c:310:47: runtime error: left shift of
                    negative value -14
           Product: Libav
           Version: git HEAD
          Platform: All
        OS/Version: Linux
            Status: NEW
          Severity: minor
          Priority: Normal
         Component: libavcodec
        AssignedTo: bugzilla at libav.org
        ReportedBy: kdev at fishzet.co.uk


./configure --toolchain=clang-usan leads to a runtime error during 'make fate':
jrevdct.c:310:47: runtime error: left shift of negative value -14

Left shifts of negative values are undefined in the c99 specification (and the
above configure line implies --std=c99, as make V=1 shows). The error is during
fate-idct8x8.

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