rlib/test/test_clibffi.py::TestCLibffi::()::test_variadic_args

self = <rpython.rlib.test.test_clibffi.TestCLibffi object at 0x0000023bba022100>

    def test_variadic_args(self):
        from rpython.translator.tool.cbuild import ExternalCompilationInfo
        from rpython.translator.platform import platform
        from rpython.tool.udir import udir
    
        c_file = udir.ensure("test_libffi", dir=1).join("xlib.c")
        c_file.write(py.code.Source('''
            #include "src/precommondefs.h"
            #include <stdarg.h>
            #include <stdio.h>
            RPY_EXPORTED
            Signed fun(Signed n, ...) {
                va_list ptr;
                int sum = 0;
                printf("n: %ld\\n", n);
    
                va_start(ptr, n);
                for (int i = 0; i < n; i++) {
                    Signed foo = va_arg(ptr, Signed);
                    sum += foo;
                    printf("Arg %d: %ld\\n", i, foo);
                }
                va_end(ptr);
                return sum;
            }
            '''))
    
        eci = ExternalCompilationInfo(include_dirs=[cdir])
        lib_name = str(platform.compile([c_file], eci, 'x4', standalone=False))
    
>       lib = CDLL(lib_name)

rlib\test\test_clibffi.py:442: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
rlib\clibffi.py:702: in __init__
    self.lib = dlopen(libname, mode)
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

name = 'd:\\systemtemp\\pytest\\usession-main-805\\test_libffi\\x4.dll'
mode = -1

    def dlopen(name, mode=-1):
        # mode is unused on windows, but a consistant signature
        if not name:
            raise DLOpenError("cannot use None")
        with rffi.scoped_utf82wcharp(name, codepoints_in_utf8(name)) as buf:
            res = rwin32.LoadLibraryW(buf)
        if not res:
            err = rwin32.GetLastError_saved()
            ustr, lgt = rwin32.FormatErrorW(err)
>           raise DLOpenError(ustr)
E           DLOpenError: 'Teseiidmdl ol o efud\xf2\xa0\x80\x8d\x00\xee\x95\xa0\xe1\xa0\xbb\x01\x00\xe7\xab\x90\xc8\xbb\xe3\xbe\xa8\xe7\xbf\xba \x0e\x01\x00\x00\x00\xe3\xbe\xa8\xe7\xbf\xba\xe7\xab\x90\xc8\xbb'

rlib\rdynload.py:242: DLOpenError

builder: rpython-win-x86-64 build #399

test: rlib/test/test_clibffi/py/TestCLibffi/()/test_variadic_args