Function libperl_sys::Perl_sv_vsetpvfn

pub unsafe extern "C" fn Perl_sv_vsetpvfn(
    my_perl: *mut PerlInterpreter, 
    sv: *mut SV, 
    pat: *const c_char, 
    patlen: STRLEN, 
    args: *mut va_list, 
    svargs: *mut *mut SV, 
    svmax: I32, 
    maybe_tainted: *mut bool
)