From Jason Turner

[string.view.template.general]

C++23 → Trunk 3.7 KB 32 lines
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Archived: C++23
Markdown: C++23 | Trunk
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  1. tmp/tmp8j007une/{from.md → to.md} +17 -11
tmp/tmp8j007une/{from.md → to.md} RENAMED
@@ -44,36 +44,43 @@ namespace std {
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  // [string.view.capacity], capacity
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  constexpr size_type size() const noexcept;
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  constexpr size_type length() const noexcept;
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  constexpr size_type max_size() const noexcept;
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- [[nodiscard]] constexpr bool empty() const noexcept;
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  // [string.view.access], element access
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  constexpr const_reference operator[](size_type pos) const;
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- constexpr const_reference at(size_type pos) const;
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  constexpr const_reference front() const;
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  constexpr const_reference back() const;
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  constexpr const_pointer data() const noexcept;
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  // [string.view.modifiers], modifiers
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  constexpr void remove_prefix(size_type n);
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  constexpr void remove_suffix(size_type n);
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  constexpr void swap(basic_string_view& s) noexcept;
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  // [string.view.ops], string operations
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- constexpr size_type copy(charT* s, size_type n, size_type pos = 0) const;
 
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- constexpr basic_string_view substr(size_type pos = 0, size_type n = npos) const;
 
 
 
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  constexpr int compare(basic_string_view s) const noexcept;
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- constexpr int compare(size_type pos1, size_type n1, basic_string_view s) const;
 
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  constexpr int compare(size_type pos1, size_type n1, basic_string_view s,
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- size_type pos2, size_type n2) const;
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  constexpr int compare(const charT* s) const;
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- constexpr int compare(size_type pos1, size_type n1, const charT* s) const;
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- constexpr int compare(size_type pos1, size_type n1, const charT* s, size_type n2) const;
 
 
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  constexpr bool starts_with(basic_string_view x) const noexcept;
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  constexpr bool starts_with(charT x) const noexcept;
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  constexpr bool starts_with(const charT* x) const;
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  constexpr bool ends_with(basic_string_view x) const noexcept;
@@ -137,15 +144,14 @@ same type as `charT`. — *end note*]
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  For a `basic_string_view str`, any operation that invalidates a pointer
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  in the range
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  ``` cpp
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- {[}str.data(), {str.data() + str.size()}{)}
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  ```
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- invalidates pointers, iterators, and references returned from `str`’s
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- member functions.
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  The complexity of `basic_string_view` member functions is 𝑂(1) unless
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  otherwise specified.
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  `basic_string_view<charT, traits>` is a trivially copyable type
 
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  // [string.view.capacity], capacity
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  constexpr size_type size() const noexcept;
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  constexpr size_type length() const noexcept;
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  constexpr size_type max_size() const noexcept;
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+ constexpr bool empty() const noexcept;
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  // [string.view.access], element access
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  constexpr const_reference operator[](size_type pos) const;
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+ constexpr const_reference at(size_type pos) const; // freestanding-deleted
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  constexpr const_reference front() const;
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  constexpr const_reference back() const;
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  constexpr const_pointer data() const noexcept;
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  // [string.view.modifiers], modifiers
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  constexpr void remove_prefix(size_type n);
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  constexpr void remove_suffix(size_type n);
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  constexpr void swap(basic_string_view& s) noexcept;
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  // [string.view.ops], string operations
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+ constexpr size_type copy(charT* s, size_type n,
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+ size_type pos = 0) const; // freestanding-deleted
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+ constexpr basic_string_view substr(size_type pos = 0,
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+ size_type n = npos) const; // freestanding-deleted
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+ constexpr basic_string_view subview(size_type pos = 0,
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+ size_type n = npos) const; // freestanding-deleted
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  constexpr int compare(basic_string_view s) const noexcept;
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+ constexpr int compare(size_type pos1, size_type n1,
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+ basic_string_view s) const; // freestanding-deleted
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  constexpr int compare(size_type pos1, size_type n1, basic_string_view s,
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+ size_type pos2, size_type n2) const; // freestanding-deleted
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  constexpr int compare(const charT* s) const;
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+ constexpr int compare(size_type pos1, size_type n1,
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+ const charT* s) const; // freestanding-deleted
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+ constexpr int compare(size_type pos1, size_type n1, const charT* s,
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+ size_type n2) const; // freestanding-deleted
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  constexpr bool starts_with(basic_string_view x) const noexcept;
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  constexpr bool starts_with(charT x) const noexcept;
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  constexpr bool starts_with(const charT* x) const;
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  constexpr bool ends_with(basic_string_view x) const noexcept;
 
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  For a `basic_string_view str`, any operation that invalidates a pointer
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  in the range
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  ``` cpp
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+ {[}str.data(), str.data() + str.size(){)}
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  ```
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+ invalidates pointers, iterators, and references to elements of `str`.
 
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  The complexity of `basic_string_view` member functions is 𝑂(1) unless
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  otherwise specified.
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  `basic_string_view<charT, traits>` is a trivially copyable type