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.TH "al_set_errno" "3alleg5" "" "Allegro reference manual" ""
.hy
.SH NAME
.PP
al_set_errno - Allegro 5 API
.SH SYNOPSIS
.IP
.nf
\f[C]

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