gieseanw ead529af54 Address unreachable code warning
In MSVC optional<T&>::value() emits a warning C4702: unreachable code because throw_exception is marked BOOST_RETURN.
Otherwise the ternary code might have been preferable.
This change addresses the warning while preserving the functionality. It replicates optional<T>::value() for consistency.
2020-12-19 00:00:18 +01:00
2020-12-19 00:00:18 +01:00
2016-01-10 15:15:44 +00:00
2003-01-22 17:54:11 +00:00
2014-04-28 16:01:55 +02:00

optional

A library for representing optional (nullable) objects in C++.

optional<int> readInt(); // this function may return either an int or a not-an-int

if (optional<int> oi = readInt()) // did I get a real int
  cout << "my int is: " << *oi;   // use my int
else
  cout << "I have no int";

For more information refer to the documentation provided with this library.

S
Description
Boost.org optional module
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