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fix: math functions (support for inferior C++14 standard)

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add C++14 constexpr modifying algorithms
This commit is contained in:
bolero-MURAKAMI 2013-10-25 12:29:16 +09:00
parent 58cff54e0d
commit c58c9cc0fc
106 changed files with 3465 additions and 2144 deletions
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46
sprout/algorithm/rotate.hpp
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@ -8,7 +8,53 @@
#ifndef SPROUT_ALGORITHM_ROTATE_HPP
#define SPROUT_ALGORITHM_ROTATE_HPP
#include <iterator>
#include <sprout/config.hpp>
#include <sprout/algorithm/iter_swap.hpp>
namespace sprout {
//
// 25.3.11 Rotate
//
template<typename ForwardIterator>
inline SPROUT_CXX14_CONSTEXPR ForwardIterator
rotate(ForwardIterator first, ForwardIterator middle, ForwardIterator last) {
if (first == middle) {
return last;
} else if (middle == last) {
return first;
}
ForwardIterator first2 = middle;
while (true) {
sprout::iter_swap(first, first2);
++first;
if (++first2 == last) {
break;
}
if (first == middle) {
middle = first2;
}
}
ForwardIterator result = first;
if (first != middle) {
first2 = middle;
while (true) {
sprout::iter_swap(first, first2);
++first;
if (++first2 == last) {
if (first == middle) {
break;
}
first2 = middle;
} else if (first == middle) {
middle = first2;
}
}
}
return result;
}
} // namespace sprout
#include <sprout/algorithm/fixed/rotate.hpp>
#include <sprout/algorithm/fit/rotate.hpp>