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nholthaus / units

a compile-time, header-only, dimensional analysis and unit conversion library built on c++14 with no dependencies.
http://nholthaus.github.io/units/
MIT License
934 stars 134 forks source link

[Bug] i386 (32-bit) fails to compile #308

Open werdahias opened 1 year ago

werdahias commented 1 year ago

Please include the following information in your issue:

  1. Which version of units you are using 2.3.3
  2. Which compiler exhibited the problem (including compiler version) gcc-12 i386 12.2.0-14

Building 2.3.3 with gcc-12 (32-bit) fails to compile: 


/builds/werdahias/units/debian/output/source_dir/include/units.h:2161:179:   in 'constexpr' expansion of 'units::convert<unit<std::ratio<60>, unit<std::ratio<60>, unit<std::ratio<1>, base_unit<std::ratio<0, 1>, std::ratio<0, 1>, std::ratio<1> > > > >, unit<std::ratio<1, 1000000000>, base_unit<std::ratio<0, 1>, std::ratio<0, 1>, std::ratio<1> > >, double>(((const units::unit_t<units::unit<std::ratio<60>, units::unit<std::ratio<60>, units::unit<std::ratio<1>, units::base_unit<std::ratio<0, 1>, std::ratio<0, 1>, std::ratio<1> > > > > >*)this)->units::unit_t<units::unit<std::ratio<60>, units::unit<std::ratio<60>, units::unit<std::ratio<1>, units::base_unit<std::ratio<0, 1>, std::ratio<0, 1>, std::ratio<1> > > > > >::<anonymous>.units::linear_scale<double>::operator()())'
/builds/werdahias/units/debian/output/source_dir/include/units.h:1571:72: error: narrowing conversion of '3600000000000' from 'intmax_t' {aka 'long long int'} to 'unsigned int' [-Wnarrowing]
/builds/werdahias/units/debian/output/source_dir/include/units.h: In instantiation of 'constexpr T units::detail::convert(const T&, std::false_type, std::false_type, std::false_type) [with Ratio = std::ratio<21071715921, 2441406250000>; PiRatio = std::ratio<0, 1>; Translation = std::ratio<0, 1>; T = double; std::false_type = std::integral_constant<bool, false>]':
/builds/werdahias/units/debian/output/source_dir/include/units.h:1651:4:   required from 'constexpr T units::convert(const T&) [with UnitFrom = unit<std::ratio<21071715921, 2441406250000>, base_unit<std::ratio<4>, std::ratio<0, 1>, std::ratio<0, 1>, std::ratio<0, 1>, std::ratio<0, 1>, std::ratio<0, 1>, std::ratio<0, 1>, std::ratio<0, 1>, std::ratio<0, 1> >, std::ratio<0, 1>, std::ratio<0, 1> >; UnitTo = unit<std::ratio<1>, base_unit<std::ratio<4>, std::ratio<0, 1>, std::ratio<0, 1>, std::ratio<0, 1>, std::ratio<0, 1>, std::ratio<0, 1>, std::ratio<0, 1>, std::ratio<0, 1>, std::ratio<0, 1> >, std::ratio<0, 1>, std::ratio<0, 1> >; T = double]'
/builds/werdahias/units/debian/output/source_dir/include/units.h:2213:34:   required from 'std::ostream& units::operator<<(std::ostream&, const unit_t<Units, T, NonLinearScale>&) [with Units = unit<std::ratio<21071715921, 2441406250000>, base_unit<std::ratio<4>, std::ratio<0, 1>, std::ratio<0, 1>, std::ratio<0, 1>, std::ratio<0, 1>, std::ratio<0, 1>, std::ratio<0, 1>, std::ratio<0, 1>, std::ratio<0, 1> >, std::ratio<0, 1>, std::ratio<0, 1> >; T = double; NonLinearScale = linear_scale; std::ostream = std::basic_ostream<char>]'
/builds/werdahias/units/debian/output/source_dir/unitTests/main.cpp:1370:69:   required from here
/builds/werdahias/units/debian/output/source_dir/include/units.h:1571:72: error: narrowing conversion of '21071715921' from 'intmax_t' {aka 'long long int'} to 'unsigned int' [-Wnarrowing]
/builds/werdahias/units/debian/output/source_dir/include/units.h:1571:72: error: narrowing conversion of '2441406250000' from 'intmax_t' {aka 'long long int'} to 'unsigned int' [-Wnarrowing]
Elapsed time: 10 s. (time), 0.001163 s. (clock)
make[3]: *** [unitTests/CMakeFiles/unitLibTest.dir/build.make:79: unitTests/CMakeFiles/unitLibTest.dir/main.cpp.o] Error 1

Full log: error.txt