std::overflow_error

 

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Exception categories logic_error invalid_argument domain_error length_error out_of_range runtime_error range_error overflow_error underflow_error tx_exception (TM TS) Error codes Error codes errno Assertions assert system_error facility error_category (C++11) generic_category (C++11) system_category (C++11) error_condition (C++11) errc (C++11) error_code (C++11) system_error (C++11)

 

std::overflow_error

Member functions

overflow_error::overflow_error

Inherited from std::exception

exception::~exception

exception::what

 

Defined in header <stdexcept>
class overflow_error;

Defines a type of object to be thrown as exception. It can be used to report arithmetic overflow errors (that is, situations where a result of a computation is too large for the destination type)

The only standard library components that throw this exception are std::bitset::to_ulong and std::bitset::to_ullong.

The mathematical functions of the standard library components do not throw this exception (mathematical functions report overflow errors as specified in math_errhandling). Third-party libraries, however, use this. For example, boost.math throws std::overflow_error if boost::math::policies::throw_on_error is enabled (the default setting).

Inheritance diagram

Member functions

(constructor)

constructs the exception object (public member function)

std::overflow_error::overflow_error

explicit overflow_error( const std::string& what_arg );	(1)
explicit overflow_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::exception 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.

Parameters

what_arg

-

explanatory string

Exceptions

May throw std::bad_alloc

Inherited from std::exception

Member functions

(destructor) [virtual]	destructs the exception object (virtual public member function of std::exception)
what [virtual]	returns an explanatory string (virtual public member function of std::exception)