* @throws ArithmeticException if {@code mode} is {@link RoundingMode#UNNECESSARY} and {@code x}
   *     is not a power of two
   */
  @SuppressWarnings("fallthrough")
  // TODO(kevinb): remove after this warning is disabled globally
  public static int log2(int x, RoundingMode mode) {
    checkPositive("x", x);
    switch (mode) {
      case UNNECESSARY:
        checkRoundingUnnecessary(isPowerOfTwo(x));

        }

        @Test
        @DisplayName("Should calculate padding")
        void testPad8() {
            testMessage.encode(new byte[1024], 0);
            // After header is written, padding depends on position
            int headerStart = testMessage.getHeaderStart();
            assertEquals(0, headerStart); // Should start at 0
        }
    }

    @Nested

	Updates(ctx context.Context, t T) (rowsAffected int, err error)
	Count(ctx context.Context, column string) (result int64, err error)
}

// SetUpdateOnlyInterface is returned by Set after chaining; only Update is allowed
type SetUpdateOnlyInterface[T any] interface {
	Update(ctx context.Context) (rowsAffected int, err error)
}

      it.second = strings::StrCat(
          "Operation '", op.node.DebugString(), "' was changed by ",
          mutation_type,
          " after it was run by a session. This mutation will have no effect, "
          "and will trigger an error in the future. Either don't modify "
          "nodes after running them or create a new session.");
    }
  }
}

namespace {

  TF_GraphCopyFunction(host_graph_, func_, nullptr, s_);
  ASSERT_EQ(TF_OK, TF_GetCode(s_)) << TF_Message(s_);

  // Delete the gradient func.
  // It is safe to delete after adding a copy to host graph.
  TF_DeleteFunction(grad_func);

  // Check that GraphDef did not change
  GraphDef gdef2;
  GetGraphDef(host_graph_, &gdef2);
  ASSERT_EQ(gdef.DebugString(), gdef2.DebugString());

margin-top: 0;\n  margin-left: 0.125rem;\n}\n\n.dropright .dropdown-toggle::after {\n  display: inline-block;\n  margin-left: 0.255em;\n  vertical-align: 0.255em;\n  content: \"\";\n  border-top: 0.3em solid transparent;\n  border-right: 0;\n  border-bottom: 0.3em solid transparent;\n  border-left: 0.3em solid;\n}\n\n.dropright .dropdown-toggle:empty::after {\n  margin-left: 0;\n}\n\n.dropright .dropdown-toggle::after {\n  vertical-align: 0;\n}\n\n.dropleft .dropdown-menu {\n  top: 0;\n  right: 100%;\n  left:...

有些情况下你需要做一些无法通过上述参数完成的**自定义校验**。

在这些情况下，你可以使用**自定义校验函数**，该函数会在正常校验之后应用（例如，在先校验值是 `str` 之后）。

你可以在 `Annotated` 中使用 [Pydantic 的 `AfterValidator`](https://docs.pydantic.dev/latest/concepts/validators/#field-after-validator) 来实现。

/// tip | 提示

Pydantic 还有 [`BeforeValidator`](https://docs.pydantic.dev/latest/concepts/validators/#field-before-validator) 等。🤓

///

	ErrWriteTooLong    = errors.New("archive/tar: write too long")
	ErrFieldTooLong    = errors.New("archive/tar: header field too long")
	ErrWriteAfterClose = errors.New("archive/tar: write after close")
	ErrInsecurePath    = errors.New("archive/tar: insecure file path")
	errMissData        = errors.New("archive/tar: sparse file references non-existent data")

- Fix the bug which could result in Job status updates failing with the error:
  status.startTime: Required value: startTime cannot be removed for unsuspended job
  The error could be raised after a Job is resumed, if started and suspended previously. ([#135129](https://github.com/kubernetes/kubernetes/pull/135129), [@dejanzele](https://github.com/dejanzele)) [SIG Apps and Testing]

		}
	}()

	select {
	case <-locked:
		t.Error("unexpected unblocking")
	case <-time.After(100 * time.Millisecond):
	}

	// unlock
	if err = dupl.Close(); err != nil {
		t.Fatal(err)
	}

	// the previously blocked routine should be unblocked
	select {
	case <-locked:
	case <-time.After(1 * time.Second):
		t.Error("unexpected blocking")
	}