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Next: <a href="Numeric-functions.html#Numeric-functions" accesskey="n" rel="next">Numeric functions</a>, Up: <a href="Numeric-properties.html#Numeric-properties" accesskey="u" rel="up">Numeric properties</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Keyword-Index.html#Keyword-Index" title="Index" rel="index">Index</a>]</p>
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<a name="Introduction-2"></a>
<h3 class="section">10.1 Introduction</h3>
<a name="index-numeric-limits"></a>

<p>Blitz++ provides a set of functions to access numeric properties of
intrinsic types.  They are provided as an alternative to the somewhat klunky
<code>numeric_limits&lt;T&gt;::yadda_yadda</code> syntax provided by the ISO/ANSI C++
standard.  Where a similar Fortran 90 function exists, the same name has
been used.
</p>
<p>The argument in all cases is a dummy of the appropriate type.
</p>
<p>All functions described in this section assume that <code>numeric_limits&lt;T&gt;</code>
has been specialized for the appropriate case.  If not, the results are not
useful.  The standard requires that <code>numeric_limits&lt;T&gt;</code> be specialized
for all the intrinsic numeric types (float, double, int, bool, unsigned int,
etc.).
</p>
<a name="index-numinquire_002eh"></a>

<p>To use these functions, you must first include the header
<code>&lt;blitz/numinquire.h&gt;</code>.  Also, note that these functions may be
unavailable if your compiler is non-ANSI compliant.  If the preprocessor
symbol <code>BZ_HAVE_NUMERIC_LIMITS</code> is false, then these functions are
unavailable.
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libblitz-doc 1:0.10-3.2 / usr / share / doc / libblitz-doc / html / Numeric-limits.html
