From Jason Turner

[func.wrap.badcall]

C++17 → C++20 1.2 KB 19 lines
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Archived: C++17 | C++20
Markdown: C++17 | C++20
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  #### Class `bad_function_call` <a id="func.wrap.badcall">[[func.wrap.badcall]]</a>
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  An exception of type `bad_function_call` is thrown by
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- `function::operator()` ([[func.wrap.func.inv]]) when the function
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- wrapper object has no target.
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  ``` cpp
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  namespace std {
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  class bad_function_call : public exception {
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  public:
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- // [func.wrap.badcall.const], constructor
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- bad_function_call() noexcept;
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  };
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  }
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  ```
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- ##### `bad_function_call` constructor <a id="func.wrap.badcall.const">[[func.wrap.badcall.const]]</a>
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-
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  ``` cpp
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- bad_function_call() noexcept;
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  ```
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- *Effects:* Constructs a `bad_function_call` object.
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-
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- *Postconditions:* `what()` returns an *implementation-defined* NTBS.
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  #### Class `bad_function_call` <a id="func.wrap.badcall">[[func.wrap.badcall]]</a>
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  An exception of type `bad_function_call` is thrown by
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+ `function::operator()` [[func.wrap.func.inv]] when the function wrapper
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+ object has no target.
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  ``` cpp
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  namespace std {
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  class bad_function_call : 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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  ``` 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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