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unused variable warnings turned errors killing all the tests

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ThePhD 2017-03-19 18:41:52 -04:00
parent 44b4045343
commit c2b8a9cc57
2 changed files with 6 additions and 3 deletions
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5
docs/source/api/optional.rst
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optional<T>
===========
This is an implemention of `optional from the standard library`_. If it detects that a proper optional exists, it will attempt to use it. This is mostly an implementation detail, used in the :ref:`sol::stack::check_get<stack-check-get>` and :ref:`sol::stack::get\<optional\<T>><stack-get>` and ``optional<T> maybe_value = table["arf"];`` implementations for additional safety reasons.
This is an implemention of `optional from the standard library`_. If it detects that a proper optional exists, it will attempt to use it. This is mostly an implementation detail, used in the :ref:`sol::stack::check_get<stack-check-get>` and :ref:`sol::stack::get\<optional\<T>><stack-get>` and ``sol::optional<T> maybe_value = table["arf"];`` implementations for additional safety reasons.
See `this example here`_ for a demonstration on how to use it and other features!
.. _optional from the standard library: http://en.cppreference.com/w/cpp/utility/optional
.. _this example here: https://github.com/ThePhD/sol2/blob/develop/examples/optional_with_iteration.cpp

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examples/optional_with_iteration.cpp
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#include <memory>
#include <iostream>
int main(int argc, char** argv) {
int main(int, char**) {
std::cout << "=== optional and iteration example ===" << std::endl;
struct thing {