This commit is contained in:
Andrzej Krzemienski
2015-03-09 11:50:10 +01:00
parent 59266a2630
commit 0a8a798c3a
10 changed files with 107 additions and 22 deletions

View File

@ -39,10 +39,12 @@
<span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span>
<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">T</span><span class="special">&gt;</span>
<span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">T</span><span class="special">&gt;</span>
<span class="keyword">class</span> <span class="identifier">optional</span>
<span class="special">{</span>
<span class="keyword">public</span> <span class="special">:</span>
<span class="keyword">public</span> <span class="special">:</span>
<span class="keyword">typedef</span> <span class="identifier">T</span> <span class="identifier">value_type</span><span class="special">;</span>
<span class="comment">// (If T is of reference type, the parameters and results by reference are by value)</span>