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214+ 最終更新日時(UTC):
215+ < span itemprop ="datePublished " content ="2025-05-29T03:28:06 ">
216+ 2025年05月29日 03時28分06秒
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219+ < span itemprop ="author " itemscope itemtype ="http://schema.org/Person ">
220+ < span itemprop ="name "> Akira Takahashi</ span >
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222+ が更新
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239+ < div class ="identifier-type "> type-alias</ div > < div class ="header "> <ranges></ div > < h1 itemprop ="name "> < span class ="namespace " title ="namespace std::ranges "> std::ranges::</ span > < span class ="class " title ="class filter_view::iterator "> filter_view::iterator::</ span > < span class ="token "> iterator_category</ span > < span class ="cpp cpp20 " title ="C++20で追加 "> (C++20)</ span > </ h1 >
240+ < div itemprop ="articleBody "> < p > < div class ="codehilite "> < pre > < span > </ span > < code > < span class ="k "> using</ span > < span class ="n "> iterator_category</ span > < span class ="o "> =</ span > < span class ="err "> 以下参照</ span > < span class ="p "> ;</ span > < span class ="c1 "> // (1) C++20</ span >
241+ </ code > </ pre > </ div >
242+ </ p >
243+ < h2 > 概要</ h2 >
244+ < p > イテレータの分類を表す型。</ p >
245+ < p > このメンバ型< code > iterator_concept</ code > は、< code > V</ code > が< code > < a href ="../../forward_range.html "> forward_ranges</ a > </ code > コンセプトのモデルである場合にのみ、以下のように定義される。</ p >
246+ < ul >
247+ < li > < code > C = iterator_traits<iterator_t<V>>::iterator_category;</ code > であるとして、</ li >
248+ < li > < code > C</ code > が< code > < a href ="../../../concepts/derived_from.html "> derived_from</ a > << a href ="../../../iterator/iterator_tag.html "> bidirectional_iterator_tag</ a > ></ code > のモデルである場合、< code > iterator_category</ code > は< code > < a href ="../../../iterator/iterator_tag.html "> bidirectional_iterator_tag</ a > </ code > となる</ li >
249+ < li > そうでない場合、< code > C</ code > が< code > < a href ="../../../concepts/derived_from.html "> derived_from</ a > << a href ="../../../iterator/iterator_tag.html "> forward_iterator_tag</ a > ></ code > のモデルである場合、< code > iterator_category</ code > は< code > < a href ="../../../iterator/iterator_tag.html "> forward_iterator_tag</ a > </ code > となる</ li >
250+ < li > そうでない場合、< code > iterator_category</ code > は< code > C</ code > となる</ li >
251+ </ ul >
252+ < h2 > バージョン</ h2 >
253+ < h3 > 言語</ h3 >
254+ < ul >
255+ < li > C++20</ li >
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