Function libperl_sys::Perl__to_utf8_fold_flags

pub unsafe extern "C" fn Perl__to_utf8_fold_flags(
    my_perl: *mut PerlInterpreter, 
    p: *const U8, 
    e: *const U8, 
    ustrp: *mut U8, 
    lenp: *mut STRLEN, 
    flags: U8, 
    file: *const c_char, 
    line: c_int
) -> UV