[Debian-med-packaging] Bug#853656: Help needed with gcc-7 error

[Andreas Tille]

Hi James,

On Sun, Aug 27, 2017 at 02:58:34PM +0100, James Cowgill wrote:
> > g++ -DHAVE_CONFIG_H -I. -I..  -I../Bigraph -I../Thirdparty -Wdate-time -D_FORTIFY_SOURCE=2 -fopenmp  -I/usr//include -I/usr//include/bamtools -Wall -Wextra  -Wno-unknown-pragmas -std=c++98 -O3 -c -o libutil_a-VariantIndex.o `test -f 'VariantIndex.cpp' || echo './'`VariantIndex.cpp
> > VariantIndex.cpp: In member function 'VariantRecordVector VariantIndex::getNearVariants(const string&, int, int) const':
> > VariantIndex.cpp:89:46: error: call of overloaded 'abs(long unsigned int)' is ambiguous
> >              if(abs(record.position - position) < distance)
> >                                               ^
> 
> In C++11, you cannot call abs on an unsigned integer (which makes no
> sense anyway). Probably "record.position" needs casting to a signed type
> (like long).

Well, casting to long helped - but in how far does making

    abs(unsigned - unsigned)

no sense?  This does not sound very logical to me.

Kind regards

       Andreas.

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