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<h3 class="section">6.41 C++ Style Comments</h3>
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<p>In GNU C, you may use C++ style comments, which start with &lsquo;<samp>//</samp>&rsquo; and
continue until the end of the line.  Many other C implementations allow
such comments, and they are included in the 1999 C standard.  However,
C++ style comments are not recognized if you specify an <samp>-std</samp>
option specifying a version of ISO C before C99, or <samp>-ansi</samp>
(equivalent to <samp>-std=c90</samp>).
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