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(libc.info)Arithmetic Functions

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Arithmetic Functions
====================

   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.

Absolute Value

Absolute values of integers and floats.

Normalization Functions

Extracting exponents and putting them back.

Rounding Functions

Rounding floats to integers.

Remainder Functions

Remainders on division, precisely defined.

FP Bit Twiddling

Sign bit adjustment. Adding epsilon.

FP Comparison Functions

Comparisons without risk of exceptions.

Misc FP Arithmetic

Max, min, positive difference, multiply-add.