99 lines
2.6 KiB
Plaintext
99 lines
2.6 KiB
Plaintext
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Copyright 2019 Peter Dimov
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Distributed under the Boost Software License, Version 1.0.
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http://www.boost.org/LICENSE_1_0.txt
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////
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[#reference]
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# Reference
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:toc:
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:toc-title:
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:idprefix:
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[#synopsis]
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## <boost/throw_exception.hpp> Synopsis
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```
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#include <boost/assert/source_location.hpp>
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#include <boost/config.hpp>
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#include <exception>
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namespace boost
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{
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#if defined( BOOST_NO_EXCEPTIONS )
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BOOST_NORETURN void throw_exception( std::exception const & e ); // user defined
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BOOST_NORETURN void throw_exception( std::exception const & e,
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boost::source_location const & loc ); // user defined
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#else
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template<class E> BOOST_NORETURN void throw_exception( E const & e );
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template<class E> BOOST_NORETURN void throw_exception( E const & e,
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boost::source_location const & loc );
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#endif
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} // namespace boost
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#define BOOST_THROW_EXCEPTION(x) \
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::boost::throw_exception(x, BOOST_CURRENT_LOCATION)
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```
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## throw_exception
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```
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#if defined( BOOST_NO_EXCEPTIONS )
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BOOST_NORETURN void throw_exception( std::exception const & e ); // user defined
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#else
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template<class E> BOOST_NORETURN void throw_exception( E const & e );
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#endif
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```
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Requires: :: `E` must have `std::exception` as a public and unambiguous base
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class.
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Effects: ::
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* When exceptions aren't available, the function is declared, but
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not defined. The user is expected to supply an appropriate definition.
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* Otherwise, if `BOOST_EXCEPTION_DISABLE` is defined, the function
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throws `e`.
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* Otherwise, the function throws an object of a type derived from `E`,
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derived from `boost::exception`, if `E` doesn't already derive from
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it, and containing the necessary support for `boost::exception_ptr`.
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```
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#if defined( BOOST_NO_EXCEPTIONS )
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BOOST_NORETURN void throw_exception( std::exception const & e,
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boost::source_location const & loc ); // user defined
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#else
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template<class E> BOOST_NORETURN void throw_exception( E const & e,
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boost::source_location const & loc );
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#endif
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```
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Requires: :: `E` must have `std::exception` as a public and unambiguous base
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class.
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Effects: ::
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* When exceptions aren't available, the function is declared, but
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not defined. The user is expected to supply an appropriate definition.
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* Otherwise, if `BOOST_EXCEPTION_DISABLE` is defined, the function
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throws `e`.
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* Otherwise, the function throws an object of a type derived from `E`,
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derived from `boost::exception`, if `E` doesn't already derive from
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it, and containing the necessary support for `boost::exception_ptr`. The
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`boost::exception` base class is initialized to contain the source
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location `loc`.
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