<h2 id="blocks">Blocks</h2>
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-<p>The idea, syntax, and semantics.</p>
+<p>The syntax and high level language feature description is in <a
+href="BlockLanguageSpec.txt">BlockLanguageSpec.txt</a>. Implementation and ABI
+details for the clang implementation are in <a
+href="BlockImplementation.txt">BlockImplementation.txt</a>.</p>
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<h2 id="overloading-in-c">Function Overloading in C</h2>