*     new ImmutableSetMultimap.Builder<String, Integer>()
   *         .put("one", 1)
   *         .putAll("several", 1, 2, 3)
   *         .putAll("many", 1, 2, 3, 4, 5)
   *         .build();
   * }
   *
   * <p>Builder instances can be reused; it is safe to call {@link #build} multiple times to build

		tw.check(t, "abc12345", "6789012345") // use Write and then WriteString since the remaining part is still longer than BufSize
	}
	{
		tw := &teststringwriter{}
		b := NewWriterSize(tw, BufSize)
		b.Write([]byte("abc")) // same as above, but use Write instead of WriteString
		tw.check(t, "", "")
		b.WriteString("123456789012345")
		tw.check(t, "abc12345", "6789012345") // same as above
	}
}

                  newHashSet(
                      'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
                      'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', '1', '2', '3', '4',
                      '5'));
        });

    assertThrows(
        IllegalArgumentException.class,
        () -> {
          Set<Set<Integer>> unused = powerSet(ContiguousSet.closed(0, Integer.MAX_VALUE / 2));

    return (n < factorials.length) ? factorials[n] : Long.MAX_VALUE;
  }

  static final long[] factorials = {
    1L,
    1L,
    1L * 2,
    1L * 2 * 3,
    1L * 2 * 3 * 4,
    1L * 2 * 3 * 4 * 5,
    1L * 2 * 3 * 4 * 5 * 6,
    1L * 2 * 3 * 4 * 5 * 6 * 7,
    1L * 2 * 3 * 4 * 5 * 6 * 7 * 8,
    1L * 2 * 3 * 4 * 5 * 6 * 7 * 8 * 9,
    1L * 2 * 3 * 4 * 5 * 6 * 7 * 8 * 9 * 10,

</p>

<p>
Examples:
</p>

<pre>
var a = [...]int{0, 1, 2, 3, 4, 5, 6, 7}
var s = make([]int, 6)
var b = make([]byte, 5)
n1 := copy(s, a[0:])            // n1 == 6, s is []int{0, 1, 2, 3, 4, 5}
n2 := copy(s, s[2:])            // n2 == 4, s is []int{2, 3, 4, 5, 4, 5}
n3 := copy(b, "Hello, World!")  // n3 == 5, b is []byte("Hello")
</pre>


<h3 id="Clear">Clear</h3>

<p>

.custom-switch.custom-switch-on-warning .custom-control-input:checked~.custom-control-label::after{background-color:#fad9a4}.dark-mode .custom-switch.custom-switch-off-danger .custom-control-input~.custom-control-label::before{background-color:#e74c3c;border-color:#a82315}.dark-mode .custom-switch.custom-switch-off-danger .custom-control-input:focus~.custom-control-label::before{box-shadow:0 0 0 1px #fff,0 0 0 2px rgba(231,76,60,.25)}.dark-mode .custom-switch.custom-switch-off-danger .custom-control-input~.custom-...

.custom-control-input:checked ~ .custom-control-label::after {\n  background-color: #fad9a4;\n}\n\n.dark-mode .custom-switch.custom-switch-off-danger .custom-control-input ~ .custom-control-label::before {\n  background-color: #e74c3c;\n  border-color: #a82315;\n}\n\n.dark-mode .custom-switch.custom-switch-off-danger .custom-control-input:focus ~ .custom-control-label::before {\n  box-shadow: 0 0 0 1px #fff, 0 0 0 2px rgba(231, 76, 60, 0.25);\n}\n\n.dark-mode .custom-switch.custom-switch-off-danger .custom-control-input...