return
	}
	if goname == "malloc" {
		goname = "_CMalloc"
	}
	name := f.Name[goname]
	if name == nil {
		name = &Name{
			Go: goname,
		}
		f.Name[goname] = name
		f.NamePos[name] = sel.Pos()
	}
	f.Ref = append(f.Ref, &Ref{
		Name:    name,
		Expr:    n,
		Context: context,
	})
}

// Save calls to C.xxx for later processing.

	In internal linking mode, allow an unresolved reference to
	<local>, assuming it will be resolved by a dynamic library
	symbol. The optional <remote> specifies the symbol's name and
	possibly version in the dynamic library, and the optional "<library>"
	names the specific library where the symbol should be found.

	On AIX, the library pattern is slightly different. It must be
	"lib.a/obj.o" with obj.o the member of this library exporting

						wantName = wantName[1:]
					}
					if i := strings.Index(wantName, "+"); i >= 0 {
						wantName = wantName[:i]
					}
				}
				if ok != isFuncSym || name != wantName {
					t.Errorf("fail at %s as function address: got %s, %v; expected %s, %v", test.input, name, ok, wantName, isFuncSym)
				}
			}
		})
	}
}

type operandTest struct {
	input, output string
}

type badOperandTest struct {

// Passing an instance of this to [FileInfoHeader] permits the caller
// to avoid a system-dependent name lookup by specifying the Uname and Gname directly.
type FileInfoNames interface {
	fs.FileInfo
	// Uname should give a user name.
	Uname() (string, error)
	// Gname should give a group name.
	Gname() (string, error)
}

// isHeaderOnlyType checks if the given type flag is of the type that has no

	tw := NewWriter(&buf)
	const name = "/foo"
	tw.WriteHeader(&Header{
		Name: name,
	})
	tw.Close()
	tr := NewReader(&buf)
	h, err := tr.Next()
	if err != nil {
		t.Fatalf("tr.Next with tarinsecurepath=1: got err %v, want nil", err)
	}
	if h.Name != name {
		t.Fatalf("tr.Next with tarinsecurepath=1: got name %q, want %q", h.Name, name)
	}

	}
	if e.isDir {
		return &openDir{e, r.openReadDir(name), 0}, nil
	}
	rc, err := e.file.Open()
	if err != nil {
		return nil, err
	}
	return rc.(fs.File), nil
}

func split(name string) (dir, elem string, isDir bool) {
	if len(name) > 0 && name[len(name)-1] == '/' {
		isDir = true
		name = name[:len(name)-1]
	}
	i := len(name) - 1
	for i >= 0 && name[i] != '/' {
		i--

	if f.Name != wt.Name {
		t.Fatalf("File name: got %q, want %q", f.Name, wt.Name)
	}
	testFileMode(t, f, wt.Mode)
	rc, err := f.Open()
	if err != nil {
		t.Fatalf("opening %s: %v", f.Name, err)
	}
	b, err := io.ReadAll(rc)
	if err != nil {
		t.Fatalf("reading %s: %v", f.Name, err)
	}
	err = rc.Close()
	if err != nil {
		t.Fatalf("closing %s: %v", f.Name, err)
	}

}

// FileInfoHeader creates a partially-populated [FileHeader] from an
// fs.FileInfo.
// Because fs.FileInfo's Name method returns only the base name of
// the file it describes, it may be necessary to modify the Name field
// of the returned header to provide the full path name of the file.
// If compression is desired, callers should set the FileHeader.Method
// field; it is unset by default.

is the name <code>foo</code> as an address in memory.
This form is used to name global functions and data.
Adding <code>&lt;&gt;</code> to the name, as in <span style="white-space: nowrap"><code>foo&lt;&gt;(SB)</code></span>, makes the name
visible only in the current source file, like a top-level <code>static</code> declaration in a C file.
Adding an offset to the name refers to that offset from the symbol's address, so

//	------------------+--------+-----------+----------
//	Name              |   256B | unlimited | unlimited
//	Linkname          |   100B | unlimited | unlimited
//	Size              | uint33 | unlimited |    uint89
//	Mode              | uint21 |    uint21 |    uint57
//	Uid/Gid           | uint21 | unlimited |    uint57
//	Uname/Gname       |    32B | unlimited |       32B
//	ModTime           | uint33 | unlimited |     int89