On Fri, Dec 09, 2011 at 10:41:35AM +0100, Steffen Möller wrote: > Dear list, > > I just sponsored a package that built nicely locally with g++ 6.4.2-5 on > amd64 but fails on the platforms listed in the subject line: > > https://buildd.debian.org/status/package.php?p=ball&suite=sid > > which gives plenty of repeats of > > .. /source/DATATYPE/hashGrid.C:23:3: error: narrowing conversion of > '-0x00000000000000001' from 'int' to 'const char' inside { } [-fpermissive] > > > I am starring at it for a while now and googled, and from > >From http://msdn.microsoft.com/en-us/library/c70dax92.aspx I can understand > >that > the regular 1 is taken as an integer constant. So in the code below it should > instead possibly read {'\0', '\1', (char) -1 } for {0,1,-1} ? I would not > like > that too much. And even if so, all platforms should behave the same. > > > #include <BALL/DATATYPE/hashGrid.h> > > namespace BALL > { > namespace __private > { > const char neighbour_table_[27][3] = > { > { 0, 0, 0 }, { 0, 0, -1 }, { 0, 0, 1 }, > { 0, -1, -1 }, { 0, -1, 0 }, { 0, -1, 1 }, > { 0, 1, -1 }, { 0, 1, 0 }, { 0, 1, 1 }, > {-1, 0, -1 }, {-1, 0, 0 }, {-1, 0, 1 }, > {-1, -1, -1 }, {-1, -1, 0 }, {-1, -1, 1 }, > {-1, 1, -1 }, {-1, 1, 0 }, {-1, 1, 1 }, > { 1, 0, -1 }, { 1, 0, 0 }, { 1, 0, 1 }, > { 1, -1, -1 }, { 1, -1, 0 }, { 1, -1, 1 }, > { 1, 1, -1 }, { 1, 1, 0 }, { 1, 1, 1 } > }; > } > } > > /// file ends here > > where the header file reads > > namespace BALL > { > namespace __private > { > extern const char BALL_EXPORT neighbour_table_[27][3]; > } > > .... > > } > > > Gcc 4.6.2-5 on amd64 does not complain at all. I do not know the version of > gcc on the buildds. > > Suggestions?
Replace "char" with "signed char". Char defaults to unsigned on some architectures and signed on others. Mike -- To UNSUBSCRIBE, email to debian-devel-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/20111209094719.ga9...@glandium.org
