From Jason Turner

[alloc.errors]

C++17 → C++20 2.8 KB 42 lines
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Archived: C++17 | C++20
Markdown: C++17 | C++20
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C++ Weekly: Ep 451

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  1. tmp/tmptby8gp53/{from.md → to.md} +5 -34
tmp/tmptby8gp53/{from.md → to.md} RENAMED
@@ -4,86 +4,57 @@
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  ``` cpp
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  namespace std {
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  class bad_alloc : public exception {
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  public:
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- bad_alloc() noexcept;
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- bad_alloc(const bad_alloc&) noexcept;
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- bad_alloc& operator=(const bad_alloc&) noexcept;
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  const char* what() const noexcept override;
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  };
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  }
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  ```
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  The class `bad_alloc` defines the type of objects thrown as exceptions
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  by the implementation to report a failure to allocate storage.
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- ``` cpp
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- bad_alloc() noexcept;
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- ```
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-
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- *Effects:* Constructs an object of class `bad_alloc`.
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-
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- ``` cpp
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- bad_alloc(const bad_alloc&) noexcept;
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- bad_alloc& operator=(const bad_alloc&) noexcept;
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- ```
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-
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- *Effects:* Copies an object of class `bad_alloc`.
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-
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  ``` cpp
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  const char* what() const noexcept override;
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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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-
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  #### Class `bad_array_new_length` <a id="new.badlength">[[new.badlength]]</a>
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  ``` cpp
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  namespace std {
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  class bad_array_new_length : public bad_alloc {
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  public:
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- bad_array_new_length() noexcept;
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  const char* what() const noexcept override;
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  };
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  }
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  ```
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  The class `bad_array_new_length` defines the type of objects thrown as
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  exceptions by the implementation to report an attempt to allocate an
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  array of size less than zero or greater than an *implementation-defined*
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- limit ([[expr.new]]).
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-
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- ``` cpp
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- bad_array_new_length() noexcept;
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- ```
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-
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- *Effects:* constructs an object of class `bad_array_new_length`.
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  ``` cpp
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  const char* what() const noexcept override;
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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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-
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  #### Type `new_handler` <a id="new.handler">[[new.handler]]</a>
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  ``` cpp
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  using new_handler = void (*)();
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  ```
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  The type of a *handler function* to be called by `operator new()` or
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- `operator new[]()` ([[new.delete]]) when they cannot satisfy a request
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- for additional storage.
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  *Required behavior:* A `new_handler` shall perform one of the following:
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  - make more storage available for allocation and then return;
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  - throw an exception of type `bad_alloc` or a class derived from
 
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  ``` cpp
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  namespace std {
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  class bad_alloc : public exception {
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  public:
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+ // see [exception] for the specification of the special member functions
 
 
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  const char* what() const noexcept override;
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  };
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  }
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  ```
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  The class `bad_alloc` defines the type of objects thrown as exceptions
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  by the implementation to report a failure to allocate storage.
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  ``` cpp
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  const char* what() const noexcept override;
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  ```
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  *Returns:* An *implementation-defined* NTBS.
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  #### Class `bad_array_new_length` <a id="new.badlength">[[new.badlength]]</a>
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  ``` cpp
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  namespace std {
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  class bad_array_new_length : public bad_alloc {
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  public:
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+ // see [exception] for the specification of the special member functions
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  const char* what() const noexcept override;
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  };
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  }
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  ```
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  The class `bad_array_new_length` defines the type of objects thrown as
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  exceptions by the implementation to report an attempt to allocate an
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  array of size less than zero or greater than an *implementation-defined*
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+ limit [[expr.new]].
 
 
 
 
 
 
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  ``` cpp
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  const char* what() const noexcept override;
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  ```
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  *Returns:* An *implementation-defined* NTBS.
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  #### Type `new_handler` <a id="new.handler">[[new.handler]]</a>
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  ``` cpp
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  using new_handler = void (*)();
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  ```
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  The type of a *handler function* to be called by `operator new()` or
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+ `operator new[]()` [[new.delete]] when they cannot satisfy a request for
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+ additional storage.
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  *Required behavior:* A `new_handler` shall perform one of the following:
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  - make more storage available for allocation and then return;
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  - throw an exception of type `bad_alloc` or a class derived from