79 lines
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79 lines
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<div class="titlepage"><div><div><h1 style="clear: both">Policies</h1></div></div></div>
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<ol class="children children-li"><li>
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<a href="../reference/policies/base.html" ><code>base</code></a>
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<p>Base class of most policy classes defining the narrow observer policies.</p><ol><li>
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<a href="../reference/policies/base/ub.html" ><code>static void _ub(Impl &&)</code></a>
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<p>Special function which causes noticeable hard undefined behaviour.</p><li>
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<a href="../reference/policies/base/has_value.html" ><code>static bool _has_value(Impl &&) noexcept</code></a>
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<p>Returns true if a value is present in the implementation passed in. Constexpr, never throws.</p><li>
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<a href="../reference/policies/base/has_error.html" ><code>static bool _has_error(Impl &&) noexcept</code></a>
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<p>Returns true if an error is present in the implementation passed in. Constexpr, never throws.</p><li>
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<a href="../reference/policies/base/has_exception.html" ><code>static bool _has_exception(Impl &&) noexcept</code></a>
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<p>Returns true if an exception is present in the implementation passed in. Constexpr, never throws.</p><li>
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<a href="../reference/policies/base/has_error_is_errno.html" ><code>static bool _has_error_is_errno(Impl &&) noexcept</code></a>
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<p>Returns true if the error code in the implementation passed in has a domain or category matching that of POSIX <code>errno</code>. Constexpr, never throws.</p><li>
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<a href="../reference/policies/base/value.html" ><code>static auto &&_value(Impl &&) noexcept</code></a>
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<p>Returns a reference to the value in the implementation passed in. Constexpr, never throws.</p><li>
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<a href="../reference/policies/base/error.html" ><code>static auto &&_error(Impl &&) noexcept</code></a>
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<p>Returns a reference to the error in the implementation passed in. Constexpr, never throws.</p><li>
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<a href="../reference/policies/base/exception.html" ><code>static auto &&_exception(Impl &&) noexcept</code></a>
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<p>Returns a reference to the exception in the implementation passed in. Constexpr, never throws.</p><li>
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<a href="../reference/policies/base/set_has_value.html" ><code>static void _set_has_value(Impl &&, bool) noexcept</code></a>
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<p>Sets whether the implementation has a value. Constexpr, never throws.</p><li>
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<a href="../reference/policies/base/set_has_error.html" ><code>static void _set_has_error(Impl &&, bool) noexcept</code></a>
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<p>Sets whether the implementation has an error. Constexpr, never throws.</p><li>
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<a href="../reference/policies/base/set_has_exception.html" ><code>static void _set_has_exception(Impl &&, bool) noexcept</code></a>
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<p>Sets whether the implementation has an exception. Constexpr, never throws.</p><li>
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<a href="../reference/policies/base/set_has_error_is_errno.html" ><code>static void _set_has_exception(Impl &&, bool) noexcept</code></a>
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<p>Sets whether the implementation’s error code has a domain or category matching that of POSIX <code>errno</code>. Constexpr, never throws.</p><li>
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<a href="../reference/policies/base/narrow_value_check.html" ><code>static void narrow_value_check(Impl &&) noexcept</code></a>
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<p>Observer policy performing hard UB if no value is present. Constexpr, never throws.</p><li>
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<a href="../reference/policies/base/narrow_error_check.html" ><code>static void narrow_error_check(Impl &&) noexcept</code></a>
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<p>Observer policy performing hard UB if no error is present. Constexpr, never throws.</p><li>
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<a href="../reference/policies/base/narrow_exception_check.html" ><code>static void narrow_exception_check(Impl &&) noexcept</code></a>
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<p>Observer policy performing hard UB if no exception is present. Constexpr, never throws.</p></li></ol><li>
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<a href="../reference/policies/all_narrow.html" ><code>all_narrow</code></a>
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<p>Policy class defining that hard undefined behaviour should occur on incorrect narrow and wide value, error or exception observation. Inherits publicly from <code>base</code>.</p><li>
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<a href="../reference/policies/error_code_throw_as_system_error_outcome.html" ><code>error_code_throw_as_system_error<T, EC, EP></code></a>
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<p>Policy class defining that <code>EP</code> ought to be rethrown if possible, then the ADL discovered free function <code>outcome_throw_as_system_error_with_payload()</code> should be called on incorrect wide value observation. Inherits publicly from <code>base</code>. Can only be used with <code>basic_outcome</code>.</p><li>
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<a href="../reference/policies/error_code_throw_as_system_error_result.html" ><code>error_code_throw_as_system_error<T, EC, void></code></a>
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<p>Policy class defining that the ADL discovered free function <code>outcome_throw_as_system_error_with_payload()</code> should be called on incorrect wide value observation. Inherits publicly from <code>base</code>. Can only be used with <code>basic_result</code>.</p><li>
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<a href="../reference/policies/exception_ptr_rethrow_outcome.html" ><code>exception_ptr_rethrow<T, EC, EP></code></a>
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<p>Policy class defining that the ADL discovered free function <code>rethrow_exception()</code> should be called on incorrect wide value observation. Inherits publicly from <code>base</code>. Can only be used with <code>basic_outcome</code>.</p><li>
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<a href="../reference/policies/exception_ptr_rethrow_result.html" ><code>exception_ptr_rethrow<T, EC, void></code></a>
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<p>Policy class defining that the ADL discovered free function <code>rethrow_exception()</code> should be called on incorrect wide value observation. Inherits publicly from <code>base</code>. Can only be used with <code>basic_result</code>.</p><li>
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<a href="../reference/policies/fail_to_compile_observers.html" ><code>fail_to_compile_observers</code></a>
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<p>Policy class defining that a static assertion should occur upon compilation of the wide value, error or exception observation. Inherits publicly from <code>base</code>.</p><li>
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<a href="../reference/policies/terminate.html" ><code>terminate</code></a>
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<p>Policy class defining that <code>std::terminate()</code> should be called on incorrect wide value, error or exception observation. Inherits publicly from <code>base</code>.</p><li>
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<a href="../reference/policies/throw_bad_result_access.html" ><code>throw_bad_result_access<EC></code></a>
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<p>Policy class defining that <code>bad_result_access_with<EC></code> should be thrown on incorrect wide value observation. Inherits publicly from <code>base</code>.</p></li></ol>
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</div><p><small>Last revised: December 13, 2018 at 21:10:19 UTC</small></p>
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