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

int al_ustr_find_cset(const ALLEGRO_USTR *us, int start_pos,
   const ALLEGRO_USTR *reject)
\f[R]
.fi
.SH DESCRIPTION
.PP
This function finds the first code point in \f[V]us\f[R], beginning from
byte offset \f[V]start_pos\f[R], that does \f[I]not\f[R] match any code
point in \f[V]reject\f[R].
In other words it finds a code point in the complementary set of
\f[V]reject\f[R].
Returns the byte position of that code point, if any.
Otherwise returns -1.
.SH SEE ALSO
.PP
al_ustr_find_cset_cstr(3alleg5), al_ustr_find_set(3alleg5)