King_DuckZ/duckhandy
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Move implementation into a struct.

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King_DuckZ 2018-07-21 23:39:11 +01:00
parent e06b87e8f8
commit 81f1a2495f
1 changed files with 22 additions and 15 deletions
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37
include/duckhandy/int_conv.hpp
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@ -71,6 +71,26 @@ namespace dhandy {
static constexpr L abs(L in) { return (not BecomesUnsigned and std::numeric_limits<L>::is_signed and in < L(0) ? -in : in); }
static constexpr CastedType cast (I in) { return static_cast<CastedType>(in); }
};
template <typename I, unsigned int Base, typename Tr>
struct IntConversion {
static constexpr ReversedSizedArray<std::decay_t<decltype(std::declval<Tr>().to_digit(1))>, implem::int_info<I, Base>::max_len + 1> to_ary (I in) {
using RetType = ReversedSizedArray<std::decay_t<decltype(std::declval<Tr>().to_digit(1))>, implem::int_info<I, Base>::max_len + 1>;
using Num = implem::NumberAdaptation<I, Base>;
const bool was_negative = implem::is_negative<I, Base>(in);
RetType arr;
arr.push_front('\0');
do {
arr.push_front(Tr::to_digit(static_cast<int>(Num::abs(Num::cast(in)) % Base)));
in = static_cast<I>(Num::cast(in) / static_cast<I>(Base));
} while (in);
if (was_negative)
arr.push_front(Tr::minus());
return arr;
}
};
} //namespace implem
template <typename C, C FirstLetter='a'>
@ -85,21 +105,8 @@ namespace dhandy {
};
template <typename I, unsigned int Base=10, typename Tr=DefaultTranslator<char>>
constexpr inline ReversedSizedArray<std::decay_t<decltype(std::declval<Tr>().to_digit(1))>, implem::int_info<I, Base>::max_len + 1> int_to_ary (I in) {
using RetType = ReversedSizedArray<std::decay_t<decltype(std::declval<Tr>().to_digit(1))>, implem::int_info<I, Base>::max_len + 1>;
using Num = implem::NumberAdaptation<std::decay_t<I>, Base>;
const bool was_negative = implem::is_negative<I, Base>(in);
RetType arr;
arr.push_front('\0');
do {
arr.push_front(Tr::to_digit(static_cast<int>(Num::abs(Num::cast(in)) % Base)));
in = static_cast<I>(Num::cast(in) / static_cast<I>(Base));
} while (in);
if (was_negative)
arr.push_front(Tr::minus());
return arr;
constexpr inline auto int_to_ary (I in) {
return implem::IntConversion<std::decay_t<I>, Base, Tr>::to_ary(in);
}
#if !defined(INT_CONV_WITHOUT_HELPERS)