std::out_of_range(3) | C++ Standard Libary | std::out_of_range(3) |
NAME¶
std::out_of_range - std::out_of_range
Synopsis¶
Defined in header <stdexcept>
class out_of_range;
Defines a type of object to be thrown as exception. It reports errors that
are
consequence of attempt to access elements out of defined range.
It may be thrown by the member functions of std::bitset and
std::basic_string, by
std::stoi and std::stod families of functions, and by the bounds-checked
member
access functions (e.g. std::vector::at and std::map::at).
std-out of range-inheritance.svg
Inheritance diagram
Member functions¶
constructor constructs a new out_of_range object with the given
message
(public member function)
operator= replaces the out_of_range object
(public member function)
what returns the explanatory string
(public member function)
std::out_of_range::out_of_range
out_of_range( const std::string& what_arg ); (1)
out_of_range( const char* what_arg ); (2) (since C++11)
out_of_range( const out_of_range& other ); (3) (until
C++11)
out_of_range( const out_of_range& other ) noexcept; (since
C++11)
1-2) Constructs the exception object with what_arg as explanatory string that
can be
accessed through what().
3) Copy constructor.
If *this and other both have dynamic type std::out_of_range then
std::strcmp(what(),
other.what()) == 0.
(since C++11)
Parameters¶
what_arg - explanatory string
other - another exception object to copy
Exceptions¶
1-2) May throw std::bad_alloc
Notes¶
Because copying std::out_of_range is not permitted to throw
exceptions, this message
is typically stored internally as a separately-allocated reference-counted
string.
This is also why there is no constructor taking std::string&&: it
would have to copy
the content anyway.
std::out_of_range::operator=
out_of_range& operator=( const out_of_range& other ); (until
C++11)
out_of_range& operator=( const out_of_range& other ) noexcept;
(since C++11)
Assigns the contents with those of other.
If *this and other both have dynamic type std::out_of_range then
std::strcmp(what(),
other.what()) == 0 after assignment.
(since C++11)
Parameters¶
other - another exception object to assign with
Return value¶
*this
std::out_of_range::what
virtual const char* what() const throw(); (until C++11)
virtual const char* what() const noexcept; (since C++11)
Returns the explanatory string.
Parameters¶
(none)
Return value¶
Pointer to a null-terminated string with explanatory information.
The string is
suitable for conversion and display as a std::wstring. The pointer is
guaranteed to
be valid at least until the exception object from which it is obtained is
destroyed,
or until a non-const member function (e.g. copy assignment operator) on the
exception object is called.
Notes¶
Implementations are allowed but not required to override what().
Inherited from std::logic_error
Inherited from std::exception
Member functions¶
destructor destroys the exception object
[virtual] (virtual public member function of std::exception)
what returns an explanatory string
[virtual] (virtual public member function of
std::exception)
Notes¶
The standard error condition std::errc::result_out_of_range
typically indicates the
condition where the result, rather than the input, is out of range, and is
more
closely related to std::range_error and ERANGE.
See also¶
at accesses the specified character with bounds checking
(public member function of
std::basic_string<CharT,Traits,Allocator>)
at accesses the specified character with bounds checking
(C++17) (public member function of
std::basic_string_view<CharT,Traits>)
at access specified element with bounds checking
(public member function of std::deque<T,Allocator>)
at access specified element with bounds checking
(public member function of std::vector<T,Allocator>)
at access specified element with bounds checking
(C++11) (public member function of std::array<T,N>)
2022.07.31 | http://cppreference.com |