nested_exception Class

Article
06/20/2022

The class describes an exception for use with multiple inheritance. It captures the currently handled exception and stores it for later use.

Syntax

class nested_exception {
    public:
        nested_exception();
        nested_exception(const nested_exception&) = default;
        virtual ~nested_exception() = default; // access functions
};

Members

Operators

Name	Description
operator=	Assignment operator.

Functions

Name	Description
rethrow_nested	Throws the stored exception.
nested_ptr	Returns the stored exception.

operator=

nested_exception& operator=(const nested_exception&) = default;

nested_ptr

exception_ptr nested_ptr() const;

Return Value

The stored exception captured by this nested_exception object.

rethrow_nested

[[noreturn]] void rethrow_nested() const;

Remarks

If nested_ptr() returns a null pointer, the function calls std::terminate(). Otherwise, it throws the stored exception captured by *this.

Requirements

Header: <exception>

Namespace: std

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