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Showing content from https://en.cppreference.com/w/cpp/language/../error/error_code/../exception.html below:

std::exception - cppreference.com

Provides consistent interface to handle errors through the throw expression.

All exceptions generated by the standard library inherit from std::exception.

All member functions of std::exception are constexpr.

Each standard library class T that derives from std::exception has the following publicly accessible member functions, each of them do not exit with an exception(until C++11)having a non-throwing exception specification(since C++11):

• default constructor (unless other constructors are provided)
• copy constructor
• copy assignment operator

The copy constructor and the copy assignment operator meet the following postcondition:

• If two objects lhs and rhs both have dynamic type T and lhs is a copy of rhs, then std::strcmp(lhs.what(), rhs.what()) is equal to ​0​.

The what() member function of each such T satisfies the constraints specified for std::exception::what().

• logic_error

• invalid_argument
• domain_error
• length_error
• out_of_range

• runtime_error

• range_error
• overflow_error
• underflow_error

• bad_typeid
• bad_cast

• bad_alloc

• bad_exception

The following behavior-changing defect reports were applied retroactively to previously published C++ standards.

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