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fix support for STL container: some algorithms

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bolero-MURAKAMI 2013-01-17 03:53:17 +09:00
parent ace6acad69
commit a9cd556f8e
28 changed files with 911 additions and 106 deletions
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41
sprout/iterator/replace_iterator.hpp Normal file
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#ifndef SPROUT_ITERATOR_REPLACE_IF_ITERATOR_HPP
#define SPROUT_ITERATOR_REPLACE_IF_ITERATOR_HPP
#include <sprout/config.hpp>
#include <sprout/iterator/transform_iterator.hpp>
namespace sprout {
//
// replace_value
//
template<typename T>
class replace_value {
public:
typedef T const& result_type;
typedef T const& argument_type;
private:
T old_;
T new_;
public:
SPROUT_CONSTEXPR replace_value(T const& old_value, T const& new_value)
: old_(old_value)
, new_(new_value)
{}
SPROUT_CONSTEXPR T operator()(T const& value) const {
return (value == old_) ? new_ : value;
}
};
//
// make_replace_iterator
//
template<typename T, typename Iterator>
inline SPROUT_CONSTEXPR sprout::transform_iterator<sprout::replace_value<T>, Iterator>
make_replace_iterator(Iterator it, T const& old_value, T const& new_value) {
return sprout::transform_iterator<sprout::replace_value<T>, Iterator>(
it, sprout::replace_value<T>(old_value, new_value)
);
}
} // namespace sprout
#endif // #ifndef SPROUT_ITERATOR_REPLACE_IF_ITERATOR_HPP