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<p>
Next: <a href="Fortran.html#Fortran" accesskey="n" rel="next">Fortran</a>, Previous: <a href="C.html#C" accesskey="p" rel="prev">C</a>, Up: <a href="Languages.html#Languages" accesskey="u" rel="up">Languages</a> [<a href="Parameter-index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Concept-index.html#Concept-index" title="Index" rel="index">Index</a>]</p>
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<a name="Special-considerations-for-C_002b_002b"></a>
<h4 class="subsection">8.2.2 Special considerations for C++</h4>
<a name="index-C_002b_002b-hints"></a>
<a name="index-Hints_002c-C_002b_002b"></a>
<ul>
<li> All of the items in the previous section (see <a href="C.html#C">C</a>) still apply.
</li><li> The ‘<samp>@{</samp>’ command is very useful for beautifying very short
definitions of member functions such as constructors. See <a href="ATlb.html#ATlb">ATlb</a>
</li><li> Essentially, <small>FWEAVE</small> has only one name space, global to the entire
code; those names do not obey any concept of scope. In various
situations in C and C++, however, multiple namespaces are used, or the
interpretation of a name changes according to its scope. Thus, the
design of <small>FWEAVE</small> imposes a few restrictions on one’s programming
style. (Remember, <small>FWEAVE</small> doesn’t know nearly as much as a language
compiler.)
<p>One example in C++ has to do with formal types in templates. Consider
the following example:
</p>
<div class="example">
<pre class="example">template <class Type>
class A
{
private:
Type *p;
}
</pre></div>
<p>In order that the class definition be typeset correctly, ‘<samp>Type</samp>’
must be understood to be a reserved word like <b>int</b>, and that is
correctly figured out by the first <b>class</b> command. However,
according to C++, the scope of ‘<samp>Type</samp>’ is local to the class
definition; unfortunately, <small>FWEAVE</small> does not respect that locality and will
always treat ‘<samp>Type</samp>’ as an <b>int</b> from the point of the
‘<samp>class Type</samp>’ construction to the end of the source code. Thus, one
should use such dummy variables as ‘<samp>Type</samp>’ only as formal template
parameters, never as ordinary variables.
</p>
</li></ul>
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