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<h3 class="section">20.8 Arithmetic Functions</h3>

<p>The C library provides functions to do basic operations on
floating-point numbers.  These include absolute value, maximum and minimum,
normalization, bit twiddling, rounding, and a few others.

<ul class="menu">
<li><a accesskey="1" href="Absolute-Value.html#Absolute-Value">Absolute Value</a>:               Absolute values of integers and floats.
<li><a accesskey="2" href="Normalization-Functions.html#Normalization-Functions">Normalization Functions</a>:      Extracting exponents and putting them back.
<li><a accesskey="3" href="Rounding-Functions.html#Rounding-Functions">Rounding Functions</a>:           Rounding floats to integers.
<li><a accesskey="4" href="Remainder-Functions.html#Remainder-Functions">Remainder Functions</a>:          Remainders on division, precisely defined.
<li><a accesskey="5" href="FP-Bit-Twiddling.html#FP-Bit-Twiddling">FP Bit Twiddling</a>:             Sign bit adjustment.  Adding epsilon.
<li><a accesskey="6" href="FP-Comparison-Functions.html#FP-Comparison-Functions">FP Comparison Functions</a>:      Comparisons without risk of exceptions.
<li><a accesskey="7" href="Misc-FP-Arithmetic.html#Misc-FP-Arithmetic">Misc FP Arithmetic</a>:           Max, min, positive difference, multiply-add.
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