src/test/ui/c-variadic/variadic-ffi-4.rs


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#![crate_type="lib"]
#![no_std]
#![feature(c_variadic)]

use core::ffi::{VaList, VaListImpl};

pub unsafe extern "C" fn no_escape0<'f>(_: usize, ap: ...) -> VaListImpl<'f> {
    ap //~ ERROR: mismatched types
}

pub unsafe extern "C" fn no_escape1(_: usize, ap: ...) -> VaListImpl<'static> {
    ap //~ ERROR: mismatched types
}

pub unsafe extern "C" fn no_escape2(_: usize, ap: ...) {
    let _ = ap.with_copy(|ap| { ap }); //~ ERROR: cannot infer an appropriate lifetime
}

pub unsafe extern "C" fn no_escape3(_: usize, mut ap0: &mut VaListImpl, mut ap1: ...) {
    *ap0 = ap1; //~ ERROR: mismatched types
}

pub unsafe extern "C" fn no_escape4(_: usize, ap0: &mut VaListImpl, mut ap1: ...) {
    ap0 = &mut ap1;
    //~^ ERROR: a value of type `core::ffi::VaListImpl<'_>` is borrowed for too long
    //~| ERROR: mismatched types
    //~| ERROR: cannot infer an appropriate lifetime
}

pub unsafe extern "C" fn no_escape5(_: usize, mut ap0: &mut VaListImpl, mut ap1: ...) {
    *ap0 = ap1.clone(); //~ ERROR: mismatched types
}