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.TH "al_ustr_find_cset" "3" "" "Allegro reference manual"
.SH NAME
al_ustr_find_cset \- Allegro 5 API
.SH SYNOPSIS
.IP
.EX
#include \f[B]<allegro5/allegro.h>\f[R]

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