suse man page for clamp

CLAMP(9)							   Driver Basics							  CLAMP(9)

NAME
       clamp - return a value clamped to a given range with strict typechecking

SYNOPSIS
       clamp(val, min, max);

ARGUMENTS
       val
	   current value

       min
	   minimum allowable value

       max
	   maximum allowable value

DESCRIPTION
       This macro does strict typechecking of min/max to make sure they are of the same type as val. See the unnecessary pointer comparisons.

COPYRIGHT
Kernel Hackers Manual 2.6.					     July 2010								  CLAMP(9)