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Prefixed units support redesigned

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Mateusz Pusz committed 2019-10-18 15:34:46 +02:00
1 parent 95028d10a7
commit b864461636
30 files changed
+284 -236
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src/include/units/format.h
+11 -7
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@@ -22,12 +22,13 @@
#pragma once
#include <units/quantity.h>
#include <ostream>
#include <string_view>
namespace units {
template<typename Prefix, typename Ratio>
inline constexpr std::string_view prefix_symbol = "";
template<typename Prefix, Ratio R>
inline constexpr std::string_view prefix_symbol;
namespace detail {
@@ -44,13 +45,13 @@ namespace units {
}
}
template<typename Ratio, typename Prefix, typename CharT, typename Traits>
template<typename Ratio, typename PrefixType, typename CharT, typename Traits>
void print_prefix_or_ratio(std::basic_ostream<CharT, Traits>& os)
{
if constexpr(Ratio::num != 1 || Ratio::den != 1) {
constexpr auto prefix = prefix_symbol<Prefix, Ratio>;
constexpr auto prefix = prefix_symbol<PrefixType, Ratio>;
if constexpr(prefix != "") {
if constexpr(!prefix.empty()) {
// print as a prefixed unit
os << prefix;
}
@@ -77,7 +78,10 @@ namespace units {
os << "^(" << abs(E::num) << "/" << E::den << ")";
}
else if constexpr(abs(E::num) != 1) {
os << "^" << abs(E::num);
// if constexpr(is_unicode<CharT>)
// os << superscript<abs(E::num)>;
// else
os << "^" << abs(E::num);
}
first = false;
};