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Pull lookup out.

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This makes the function run faster
This commit is contained in:
King_DuckZ 2021-06-07 21:52:33 +02:00
parent a171faa95d
commit c9b2d36491
1 changed files with 12 additions and 9 deletions
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21
include/duckhandy/implem/int_conv.hpp
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@ -155,19 +155,22 @@ namespace dhandy {
template <typename I, typename Tr>
struct IntConversion<I, 10, Tr, typename std::enable_if<std::is_integral<I>::value and not std::is_same<I, bool>::value>::type> {
private:
static const constexpr char lookup[200] = {
0,0,0,1,0,2,0,3,0,4,0,5,0,6,0,7,0,8,0,9,1,0,1,1,1,2,1,3,1,4,
1,5,1,6,1,7,1,8,1,9,2,0,2,1,2,2,2,3,2,4,2,5,2,6,2,7,2,8,2,9,
3,0,3,1,3,2,3,3,3,4,3,5,3,6,3,7,3,8,3,9,4,0,4,1,4,2,4,3,4,4,
4,5,4,6,4,7,4,8,4,9,5,0,5,1,5,2,5,3,5,4,5,5,5,6,5,7,5,8,5,9,
6,0,6,1,6,2,6,3,6,4,6,5,6,6,6,7,6,8,6,9,7,0,7,1,7,2,7,3,7,4,
7,5,7,6,7,7,7,8,7,9,8,0,8,1,8,2,8,3,8,4,8,5,8,6,8,7,8,8,8,9,
9,0,9,1,9,2,9,3,9,4,9,5,9,6,9,7,9,8,9,9
};
public:
static constexpr RevArray<I, 10, Tr> to_ary (I in) {
using RetType = RevArray<I, 10, Tr>;
using Num = implem::NumberAdaptation<I, 10>;
const constexpr char lookup[200] = {
0,0,0,1,0,2,0,3,0,4,0,5,0,6,0,7,0,8,0,9,1,0,1,1,1,2,1,3,1,4,
1,5,1,6,1,7,1,8,1,9,2,0,2,1,2,2,2,3,2,4,2,5,2,6,2,7,2,8,2,9,
3,0,3,1,3,2,3,3,3,4,3,5,3,6,3,7,3,8,3,9,4,0,4,1,4,2,4,3,4,4,
4,5,4,6,4,7,4,8,4,9,5,0,5,1,5,2,5,3,5,4,5,5,5,6,5,7,5,8,5,9,
6,0,6,1,6,2,6,3,6,4,6,5,6,6,6,7,6,8,6,9,7,0,7,1,7,2,7,3,7,4,
7,5,7,6,7,7,7,8,7,9,8,0,8,1,8,2,8,3,8,4,8,5,8,6,8,7,8,8,8,9,
9,0,9,1,9,2,9,3,9,4,9,5,9,6,9,7,9,8,9,9
};
const bool was_negative = implem::is_negative<I, 10>(in);
RetType arr;