cffi_tests.cffi0.test_vgen:test_varargs_struct

def test_varargs_struct():
        ffi = FFI()
        ffi.cdef("struct foo_s { char a; int b; }; int foo(int x, ...);")
        lib = ffi.verify("""
            struct foo_s {
                char a; int b;
            };
            int foo(int x, ...) {
                va_list vargs;
                struct foo_s s;
                va_start(vargs, x);
                s = va_arg(vargs, struct foo_s);
                va_end(vargs);
                return s.a - s.b;
            }
        """)
        s = ffi.new("struct foo_s *", [b'B', 1])
>       assert lib.foo(50, s[0]) == ord('A')
E       AssertionError: assert 0 == 65
E        +  where 0 = <cdata 'int(*)(int, ...)' 0x111a2ff34>(50, <cdata 'struct foo_s' owning 8 bytes>)
E        +    where <cdata 'int(*)(int, ...)' 0x111a2ff34> = <module ''>.foo
E        +  and   65 = ord('A')

../build/extra_tests/cffi_tests/cffi0/test_verify.py:1081: AssertionError

builder: pypy-c-jit-macos-arm64 build #1301+

test: cffi_tests.cffi0.test_vgen:test_varargs_struct