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GSL preconditions added (to be replaced with C++20 Contracts)

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Mateusz Pusz
2019-04-05 17:46:01 +02:00
parent 15dd7462ec
commit f94a7b92ea
3 changed files with 14 additions and 1 deletions
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src/include/units/quantity.h
+9
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@@ -24,6 +24,7 @@
#include "unit.h"
#include <limits>
#include <gsl/gsl-lite.hpp>
namespace units {
@@ -262,6 +263,8 @@ namespace units {
constexpr operator/(const Rep1& v,
const quantity<D, U, Rep2>& q)
{
Expects(q != std::decay_t<decltype(q)>(0));
using dim = dim_invert_t<D>;
using ret = quantity<dim, upcasting_traits_t<unit<dim, std::ratio<U::ratio::den, U::ratio::num>>>, std::common_type_t<Rep1, Rep2>>;
using den = quantity<D, U, std::common_type_t<Rep1, Rep2>>;
@@ -273,6 +276,8 @@ namespace units {
constexpr operator/(const quantity<D, U, Rep1>& q,
const Rep2& v)
{
Expects(v != Rep2{0});
using ret = quantity<D, U, std::common_type_t<Rep1, Rep2>>;
return ret(ret(q).count() / v);
}
@@ -282,6 +287,8 @@ namespace units {
constexpr operator/(const quantity<D, U1, Rep1>& lhs,
const quantity<D, U2, Rep2>& rhs)
{
Expects(rhs != std::decay_t<decltype(rhs)>(0));
using cq = std::common_type_t<quantity<D, U1, Rep1>, quantity<D, U2, Rep2>>;
return cq(lhs).count() / cq(rhs).count();
}
@@ -292,6 +299,8 @@ namespace units {
constexpr operator/(const quantity<D1, U1, Rep1>& lhs,
const quantity<D2, U2, Rep2>& rhs)
{
Expects(rhs != std::decay_t<decltype(rhs)>(0));
using dim = dimension_divide_t<D1, D2>;
using ret = quantity<dim, upcasting_traits_t<unit<dim, std::ratio_divide<typename U1::ratio, typename U2::ratio>>>, std::common_type_t<Rep1, Rep2>>;
return ret(lhs.count() / rhs.count());