home Forums # Technical Support double-promotion warning in Operation.h

This topic contains 3 replies, has 3 voices, and was last updated by Hamza Kaaya Hamza Kaaya 6 months, 3 weeks ago.

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  • #6286
    Marc Amstoutz
    Marx Amstoutz
    Participant

    Hi,
    I am getting a warning when compiling Operation.h. Am I missing something ?
    Thanks,
    Marc

    /vagrant/Spider_NJSDK-12718-fuzzyLite-integration/Spider/include/fl/Operation.h: In instantiation of ‘static bool fl::Operation::isInf(T) [with T = float]’:
    /vagrant/Spider_NJSDK-12718-fuzzyLite-integration/Spider/include/fl/Operation.h:983:29: required from ‘static std::string fl::Operation::str(T, int, std::ios_base::fmtflags) [with T = float; std::string = std::basic_string<char>; std::ios_base::fmtflags = std::_Ios_Fmtflags]’
    /vagrant/Spider_NJSDK-12718-fuzzyLite-integration/Spider/include/fl/Operation.h:1041:24: required from here
    /vagrant/Spider_NJSDK-12718-fuzzyLite-integration/Spider/include/fl/Operation.h:623:18: error: implicit conversion from ‘float’ to ‘fl::scalar {aka double}’ to match other operand of binary expression [-Werror=double-promotion]
    return x == fl::inf or x == -fl::inf;

    #6287
    Juan Rada-Vilela
    Juan Rada-Vilela
    Keymaster

    Thanks for reporting this.

    What compiler are you using? You do not need to worry about it. It might be just a new warning implemented in a new compiler version. I will take a look at this for the next version.

    Cheers,
    Juan

    #6288
    Marc Amstoutz
    Marx Amstoutz
    Participant

    Hi,
    see hereunder for compiler revision.
    No problem, I have added pragma to ignore this warning.
    Marc
    [80481510acaa][amstoutzm][build]gcc -v
    Using built-in specs.
    COLLECT_GCC=gcc
    COLLECT_LTO_WRAPPER=/usr/libexec/gcc/x86_64-redhat-linux/4.8.5/lto-wrapper
    Target: x86_64-redhat-linux
    Configured with: ../configure –prefix=/usr –mandir=/usr/share/man –infodir=/usr/share/info –with-bugurl=http://bugzilla.redhat.com/bugzilla –enable-bootstrap –enable-shared –enable-threads=posix –enable-checking=release –with-system-zlib –enable-__cxa_atexit –disable-libunwind-exceptions –enable-gnu-unique-object –enable-linker-build-id –with-linker-hash-style=gnu –enable-languages=c,c++,objc,obj-c++,java,fortran,ada,go,lto –enable-plugin –enable-initfini-array –disable-libgcj –with-isl=/builddir/build/BUILD/gcc-4.8.5-20150702/obj-x86_64-redhat-linux/isl-install –with-cloog=/builddir/build/BUILD/gcc-4.8.5-20150702/obj-x86_64-redhat-linux/cloog-install –enable-gnu-indirect-function –with-tune=generic –with-arch_32=x86-64 –build=x86_64-redhat-linux
    Thread model: posix
    gcc version 4.8.5 20150623 (Red Hat 4.8.5-28) (GCC)

    #6293
    Hamza Kaaya
    Hamza Kaaya
    Participant

    What method do I call if I want to see a rule which was fired from the rule base?
    Example if I have four rules from the tipping problem
    takagiSugeno.addRule(Rule.parse(“if service is poor or food is rancid then tsTip is cheap”, engine));
    takagiSugeno.addRule(Rule.parse(“if service is good then tsTip is average”, engine));
    takagiSugeno.addRule(Rule.parse(“if service is excellent or food is delicious then tsTip is generous with 0.5”, engine));
    takagiSugeno.addRule(Rule.parse(“if service is excellent and food is delicious then tsTip is generous with 1.0”, engine));
    engine.addRuleBlock(takagiSugeno);

    I wan to know which rule is fired in every iteration.
    like Cheap, average or delicious

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