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

int32_t\ al_ustr_prev_get(const\ ALLEGRO_USTR\ *us,\ int\ *pos)
\f[]
.fi
.SH DESCRIPTION
.PP
Find the beginning of a code point before byte offset \f[C]*pos\f[],
then return it.
Note this performs a \f[I]pre\-increment\f[].
.PP
On success returns the code point value.
If \f[C]pos\f[] was out of bounds (e.g.\ past the end of the string),
return \-1.
On an error, such as an invalid byte sequence, return \-2.
As with al_ustr_prev(3alleg5), invalid byte sequences may be skipped
while advancing.
.SH SEE ALSO
.PP
al_ustr_get_next(3alleg5)