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sprout::index_t 追加

This commit is contained in:
bolero-MURAKAMI 2012-02-28 10:46:39 +09:00
parent c9471df964
commit d5dcbaf4b2
44 changed files with 80 additions and 101 deletions

View file

@ -5,19 +5,24 @@
#include <sprout/config.hpp>
namespace sprout {
//
// index_t
//
typedef std::ptrdiff_t index_t;
//
// index_tuple
//
template<std::ptrdiff_t... Indexes>
template<sprout::index_t... Indexes>
struct index_tuple {};
//
// index_range
//
template<
std::ptrdiff_t First,
std::ptrdiff_t Last,
std::ptrdiff_t Step = 1,
sprout::index_t First,
sprout::index_t Last,
sprout::index_t Step = 1,
typename Acc = sprout::index_tuple<>,
bool Break = (First >= Last)
>
@ -25,10 +30,10 @@ namespace sprout {
typedef Acc type;
};
template<
std::ptrdiff_t First,
std::ptrdiff_t Last,
std::ptrdiff_t Step,
std::ptrdiff_t... Indexes
sprout::index_t First,
sprout::index_t Last,
sprout::index_t Step,
sprout::index_t... Indexes
>
struct index_range<First, Last, Step, sprout::index_tuple<Indexes...>, false>
: public sprout::index_range<First + Step, Last, Step, sprout::index_tuple<Indexes..., First> >
@ -38,8 +43,8 @@ namespace sprout {
// index_n
//
template<
std::ptrdiff_t I,
std::ptrdiff_t N,
sprout::index_t I,
sprout::index_t N,
typename Acc = sprout::index_tuple<>,
bool Break = (N == 0)
>
@ -47,9 +52,9 @@ namespace sprout {
typedef Acc type;
};
template<
std::ptrdiff_t I,
std::ptrdiff_t N,
std::ptrdiff_t... Indexes
sprout::index_t I,
sprout::index_t N,
sprout::index_t... Indexes
>
struct index_n<I, N, sprout::index_tuple<Indexes...>, false>
: public sprout::index_n<I, N - 1, sprout::index_tuple<Indexes..., I> >