From Jason Turner

[type.info]

C++17 → C++20 2.3 KB 28 lines
Current Draft | LaTeX Source
Archived: C++17 | C++20
Markdown: C++17 | C++20
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  1. tmp/tmp6ytfgoi9/{from.md → to.md} +9 -15
tmp/tmp6ytfgoi9/{from.md → to.md} RENAMED
@@ -4,41 +4,35 @@
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  namespace std {
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  class type_info {
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  public:
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  virtual ~type_info();
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  bool operator==(const type_info& rhs) const noexcept;
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- bool operator!=(const type_info& rhs) const noexcept;
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  bool before(const type_info& rhs) const noexcept;
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  size_t hash_code() const noexcept;
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  const char* name() const noexcept;
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- type_info(const type_info& rhs) = delete; // cannot be copied
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- type_info& operator=(const type_info& rhs) = delete; // cannot be copied
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  };
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  }
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  ```
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  The class `type_info` describes type information generated by the
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- implementation. Objects of this class effectively store a pointer to a
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- name for the type, and an encoded value suitable for comparing two types
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- for equality or collating order. The names, encoding rule, and collating
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- sequence for types are all unspecified and may differ between programs.
 
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  ``` cpp
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  bool operator==(const type_info& rhs) const noexcept;
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  ```
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  *Effects:* Compares the current object with `rhs`.
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  *Returns:* `true` if the two values describe the same type.
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- ``` cpp
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- bool operator!=(const type_info& rhs) const noexcept;
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- ```
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-
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- *Returns:* `!(*this == rhs)`.
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-
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  ``` cpp
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  bool before(const type_info& rhs) const noexcept;
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  ```
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  *Effects:* Compares the current object with `rhs`.
@@ -62,8 +56,8 @@ const char* name() const noexcept;
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  ```
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  *Returns:* An *implementation-defined* NTBS.
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  *Remarks:* The message may be a null-terminated multibyte
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- string ([[multibyte.strings]]), suitable for conversion and display as
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- a `wstring` ([[string.classes]], [[locale.codecvt]])
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  namespace std {
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  class type_info {
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  public:
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  virtual ~type_info();
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  bool operator==(const type_info& rhs) const noexcept;
 
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  bool before(const type_info& rhs) const noexcept;
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  size_t hash_code() const noexcept;
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  const char* name() const noexcept;
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+ type_info(const type_info&) = delete; // cannot be copied
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+ type_info& operator=(const type_info&) = delete; // cannot be copied
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  };
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  }
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  ```
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  The class `type_info` describes type information generated by the
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+ implementation [[expr.typeid]]. Objects of this class effectively store
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+ a pointer to a name for the type, and an encoded value suitable for
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+ comparing two types for equality or collating order. The names, encoding
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+ rule, and collating sequence for types are all unspecified and may
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+ differ between programs.
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  ``` cpp
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  bool operator==(const type_info& rhs) const noexcept;
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  ```
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  *Effects:* Compares the current object with `rhs`.
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  *Returns:* `true` if the two values describe the same type.
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  ``` cpp
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  bool before(const type_info& rhs) const noexcept;
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  ```
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  *Effects:* Compares the current object with `rhs`.
 
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  ```
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  *Returns:* An *implementation-defined* NTBS.
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  *Remarks:* The message may be a null-terminated multibyte
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+ string [[multibyte.strings]], suitable for conversion and display as a
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+ `wstring` ([[string.classes]], [[locale.codecvt]]).
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