.TH "al_set_errno(3alleg5) Allegro reference manual" "" "" "" ""
.SH NAME
.PP
al_set_errno \- Allegro 5 API
.SH SYNOPSIS
.IP
.nf
\f[C]
#include\ <allegro5/allegro.h>

void\ al_set_errno(int\ errnum)
\f[]
.fi
.SH DESCRIPTION
.PP
Set the error number for for the calling thread.