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feat: compare.h header added with checks against zero

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Resolves #487
This commit is contained in:
Mateusz Pusz
2023-09-13 08:55:06 +02:00
parent c4ad3039b3
commit cbcc6f4627
3 changed files with 156 additions and 6 deletions
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example/include/geographic.h
+7 -6
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@@ -24,6 +24,7 @@
#include "ranged_representation.h"
#include <mp-units/bits/fmt_hacks.h>
#include <mp-units/compare.h>
#include <mp-units/format.h>
#include <mp-units/math.h>
#include <mp-units/quantity.h>
@@ -78,7 +79,7 @@ using longitude = mp_units::quantity_point<mp_units::si::degree, prime_meridian,
template<class CharT, class Traits, typename T>
std::basic_ostream<CharT, Traits>& operator<<(std::basic_ostream<CharT, Traits>& os, const latitude<T>& lat)
{
if (lat > latitude<T>::zero())
if (is_gt_zero(lat))
return os << lat.quantity_from_origin() << " N";
else
return os << -lat.quantity_from_origin() << " S";
@@ -87,7 +88,7 @@ std::basic_ostream<CharT, Traits>& operator<<(std::basic_ostream<CharT, Traits>&
template<class CharT, class Traits, typename T>
std::basic_ostream<CharT, Traits>& operator<<(std::basic_ostream<CharT, Traits>& os, const longitude<T>& lon)
{
if (lon > longitude<T>::zero())
if (is_gt_zero(lon))
return os << lon.quantity_from_origin() << " E";
else
return os << -lon.quantity_from_origin() << " W";
@@ -137,8 +138,8 @@ struct MP_UNITS_STD_FMT::formatter<geographic::latitude<T>> :
auto format(geographic::latitude<T> lat, FormatContext& ctx)
{
formatter<typename geographic::latitude<T>::quantity_type>::format(
lat > geographic::latitude<T>::zero() ? lat.quantity_from_origin() : -lat.quantity_from_origin(), ctx);
MP_UNITS_STD_FMT::format_to(ctx.out(), "{}", lat > geographic::latitude<T>::zero() ? " N" : "S");
is_gt_zero(lat) ? lat.quantity_from_origin() : -lat.quantity_from_origin(), ctx);
MP_UNITS_STD_FMT::format_to(ctx.out(), "{}", is_gt_zero(lat) ? " N" : "S");
return ctx.out();
}
};
@@ -150,8 +151,8 @@ struct MP_UNITS_STD_FMT::formatter<geographic::longitude<T>> :
auto format(geographic::longitude<T> lon, FormatContext& ctx)
{
formatter<typename geographic::longitude<T>::quantity_type>::format(
lon > geographic::longitude<T>::zero() ? lon.quantity_from_origin() : -lon.quantity_from_origin(), ctx);
MP_UNITS_STD_FMT::format_to(ctx.out(), "{}", lon > geographic::longitude<T>::zero() ? " E" : " W");
is_gt_zero(lon) ? lon.quantity_from_origin() : -lon.quantity_from_origin(), ctx);
MP_UNITS_STD_FMT::format_to(ctx.out(), "{}", is_gt_zero(lon) ? " E" : " W");
return ctx.out();
}
};