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xo-ratio: workaround: clang reqs public structural-type members

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Roland Conybeare 2024-04-27 11:50:23 -04:00
commit d949a2de2a
1 changed files with 9 additions and 0 deletions
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9
example/ex1/ex1.cpp
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@ -62,6 +62,12 @@ namespace {
}
}
/* verify can use ratio instance as template argument */
using ratio64_t = xo::ratio::ratio<int64_t>;
template<ratio64_t Ratio>
constexpr double my_ratio_approx = Ratio.num_ / static_cast<double>(Ratio.den_);
}
int
@ -72,6 +78,9 @@ main() {
using xo::flatstring;
using namespace std;
static_assert(my_ratio_approx<ratio64_t(1, 2)> == 0.5);
static_assert(my_ratio_approx<ratio64_t{}> == 0.0);
constexpr auto r1 = make_ratio(2, 3);
cerr << "r1=make_ratio(2,3): " << r1 << endl; // output <ratio 2/3>