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<p>Several C compilers implement two non-standard C/C++ extensions relating to goto statements originally introduced by <a href="page.php?w=GNU_Compiler_Collection">gcc</a>. The GNU extension allows the address of a label inside the current function to be obtained as a <code>void*</code> using the unary, prefix <b>label value operator</b> <code>&&</code>. The goto instruction is also extended to allow jumping to an arbitrary <code>void*</code> expression. This C extension is referred to as a computed goto in documentation of the C compilers that</p><p>
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