tmp/tmpcjda05u3/{from.md → to.md}
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| 1 |
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#### Specialization of *`range-default-formatter`* for strings <a id="format.range.fmtstr">[[format.range.fmtstr]]</a>
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``` cpp
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namespace std {
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template<range_format K, ranges::input_range R, class charT>
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requires (K == range_format::string || K == range_format::debug_string)
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struct range-default-formatter<K, R, charT> {
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private:
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formatter<basic_string<charT>, 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(see below& str, FormatContext& ctx) const;
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};
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}
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```
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*Mandates:* `same_as<remove_cvref_t<range_reference_t<R>>, charT>` is
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`true`.
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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:
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``` cpp
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auto i = underlying_.parse(ctx);
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if constexpr (K == range_format::debug_string) {
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underlying_.set_debug_format();
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}
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return i;
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```
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``` cpp
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template<class FormatContext>
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typename FormatContext::iterator
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format(see below& r, FormatContext& ctx) const;
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```
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The type of `r` is `const R&` if `ranges::input_range<const R>` is
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`true` and `R&` otherwise.
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*Effects:* Let *`s`* be a `basic_string<charT>` such that
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`ranges::equal(`*`s`*`, r)` is `true`. Equivalent to:
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`return `*`underlying_`*`.format(`*`s`*`, ctx);`
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