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.\" -*- mode: troff; coding: utf-8 -*-
.\" Automatically generated by Pod::Man 5.01 (Pod::Simple 3.43)
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.\" ========================================================================
.\"
.IX Title "PerlIO::mmap 3perl"
.TH PerlIO::mmap 3perl 2024-01-12 "perl v5.38.2" "Perl Programmers Reference Guide"
.\" For nroff, turn off justification. Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
.if n .ad l
.nh
.SH NAME
PerlIO::mmap \- Memory mapped IO
.SH SYNOPSIS
.IX Header "SYNOPSIS"
.Vb 1
\& open my $fh, \*(Aq<:mmap\*(Aq, $filename;
.Ve
.SH DESCRIPTION
.IX Header "DESCRIPTION"
This layer does \f(CW\*(C`read\*(C'\fR and \f(CW\*(C`write\*(C'\fR operations by \fBmmap()\fRing the file if possible, but falls back to the default behavior if not.
.SH "IMPLEMENTATION NOTE"
.IX Header "IMPLEMENTATION NOTE"
\&\f(CW\*(C`PerlIO::mmap\*(C'\fR only exists to use XSLoader to load C code that provides support for using memory mapped IO. One does not need to explicitly \f(CW\*(C`use PerlIO::mmap;\*(C'\fR.
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