'\" t
.\"     Title: clamp
.\"    Author: [FIXME: author] [see http://docbook.sf.net/el/author]
.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
.\"      Date: January 2017
.\"    Manual: Driver Basics
.\"    Source: Kernel Hackers Manual 4.8.15
.\"  Language: English
.\"
.TH "CLAMP" "9" "January 2017" "Kernel Hackers Manual 4\&.8\&." "Driver Basics"
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.SH "NAME"
clamp \- return a value clamped to a given range with strict typechecking
.SH "SYNOPSIS"
.HP \w'clamp('u
.BI "clamp(" "val" ", " "lo" ", " "hi" ");"
.SH "ARGUMENTS"
.PP
\fIval\fR
.RS 4
current value
.RE
.PP
\fIlo\fR
.RS 4
lowest allowable value
.RE
.PP
\fIhi\fR
.RS 4
highest allowable value
.RE
.SH "DESCRIPTION"
.PP
This macro does strict typechecking of lo/hi to make sure they are of the same type as val\&. See the unnecessary pointer comparisons\&.
.SH "COPYRIGHT"
.br