std::range_error (3) - Linux Manuals

std::range_error: std::range_error


std::range_error - std::range_error


Defined in header <stdexcept>
class range_error;

Defines a type of object to be thrown as exception. It can be used to report range errors (that is, situations where a result of a computation cannot be represented by the destination type)
The only standard library components that throw this exception are std::wstring_convert::from_bytes and std::wstring_convert::to_bytes.
The mathematical functions in the standard library components do not throw this exception (mathematical functions report range errors as specified in math_errhandling).
 std-range error-inheritance.svg
Inheritance diagram

Member functions

              constructs the exception object
constructor (public member function)


explicit range_error( const std::string& what_arg ); (1)
explicit range_error( const char* what_arg ); (2) (since C++11)

Constructs the exception object with what_arg as explanatory string that can be accessed through what().
Because copying std::range_error 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.


what_arg - explanatory string


May throw std::bad_alloc

Inherited from std::exception

Member functions

destructor destroys the exception object
             (virtual public member function of std::exception)

what returns an explanatory string
             (virtual public member function of std::exception)