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+ <title>Priority-Queue Regression Tests</title>
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+ <h1>Priority-Queue Regression Tests</h1>
+
+ <h2><a name="assoc_desc" id="assoc_desc">Description</a></h2>
+
+ <p>The library contains a single comprehensive regression test.
+ For a given container type in <tt>pb_ds</tt>, the test creates
+ an object of the container type and an object of the
+ corresponding STL type (<i>i.e.</i>,
+ <tt>std::priority_queue</tt>). It then performs a random
+ sequence of methods with random arguments (<i>e.g.</i>, pushes,
+ pops, and so forth) on both objects. At each operation, the
+ test checks the return value of the method, and optionally both
+ compares <tt>pb_ds</tt>'s object with the STL's object as well
+ as performing other consistency checks on <tt>pb_ds</tt>'s
+ object (<i>e.g.</i>, that the size returned by the
+ <tt>size</tt> method corresponds to the distance between its
+ <tt>begin</tt> and end iterators).</p>
+
+ <p>Additionally, the test integrally checks exception safety
+ and resource leaks. This is done as follows. A special
+ allocator type, written for the purpose of the test, both
+ randomly throws an exceptions when allocations are performed,
+ and tracks allocations and de-allocations. The exceptions thrown
+ at allocations simulate memory-allocation failures; the
+ tracking mechanism checks for memory-related bugs (<i>e.g.</i>,
+ resource leaks and multiple de-allocations). Both
+ <tt>pb_ds</tt>'s containers and the containers' value-types are
+ configured to use this allocator.</p>
+
+ <h2><a name="pq_tests" id="pq_tests">Tests</a></h2>
+
+ <p><a href=
+ "http://gcc.gnu.org/viewcvs/*checkout*/trunk/libstdc%2B%2B-v3/testsuite/ext/pb_ds/regression/priority_queue_rand.cc"><tt>priority_queue_rand.cc</tt></a>
+ checks all priority queue types.</p>
+ </div>
+</body>
+</html>
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