tmp/tmpb674l8un/{from.md → to.md}
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| 1 |
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### Container adaptors formatting <a id="container.adaptors.format">[[container.adaptors.format]]</a>
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For each of `queue`, `priority_queue`, and `stack`, the library provides
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the following formatter specialization where `adaptor-type` is the name
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of the template:
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``` cpp
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namespace std {
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template<class charT, class T, formattable<charT> Container, class... U>
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struct formatter<adaptor-type<T, Container, U...>, charT> {
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private:
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using maybe-const-container = // exposition only
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fmt-maybe-const<Container, charT>;
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using maybe-const-adaptor = // exposition only
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maybe-const<is_const_v<maybe-const-container>, // see [ranges.syn]
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adaptor-type<T, Container, U...>>;
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formatter<ranges::ref_view<maybe-const-container>, charT> underlying_; // exposition only
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public:
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template<class ParseContext>
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constexpr typename ParseContext::iterator
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parse(ParseContext& ctx);
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template<class FormatContext>
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typename FormatContext::iterator
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format(maybe-const-adaptor& r, FormatContext& ctx) const;
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};
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}
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```
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``` cpp
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template<class ParseContext>
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constexpr typename ParseContext::iterator
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parse(ParseContext& ctx);
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```
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*Effects:* Equivalent to: `return `*`underlying_`*`.parse(ctx);`
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``` cpp
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template<class FormatContext>
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typename FormatContext::iterator
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format(maybe-const-adaptor& r, FormatContext& ctx) const;
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```
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*Effects:* Equivalent to: `return `*`underlying_`*`.format(r.c, ctx);`
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