21 Strings library [strings]

21.3 String classes [string.classes]

21.3.3 Class template basic_­string [basic.string]

21.3.3.8 String operations [string.ops]

21.3.3.8.1 Accessors [string.accessors]

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constexpr const charT* c_str() const noexcept; constexpr const charT* data() const noexcept;
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Returns: A pointer p such that p + i == addressof(operator[](i)) for each i in [0, size()].
2
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Complexity: Constant time.
3
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Remarks: The program shall not modify any of the values stored in the character array; otherwise, the behavior is undefined.
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constexpr charT* data() noexcept;
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Returns: A pointer p such that p + i == addressof(operator[](i)) for each i in [0, size()].
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Complexity: Constant time.
6
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Remarks: The program shall not modify the value stored at p + size() to any value other than charT(); otherwise, the behavior is undefined.
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constexpr operator basic_string_view<charT, traits>() const noexcept;
7
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Effects: Equivalent to: return basic_­string_­view<charT, traits>(data(), size());
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constexpr allocator_type get_allocator() const noexcept;
8
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Returns: A copy of the Allocator object used to construct the string or, if that allocator has been replaced, a copy of the most recent replacement.