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shared_ptr指针被赋值后，原指针会引用清零、自动释放。 - C/C++ - 清泛网 ...
...原指针会引用清零、自动释放。std::shared_ptr<int> intg;void foo(std::shared_ptr<int> p){ ...shared_ptr指针被赋值后，原指针会引用清零、自动释放。
std::shared_ptr<int> intg;
void foo(std::shared_ptr<int> p)
{
intg = p; // 原指针释放，存...
背包：将代码块复制并粘贴到不同的屏幕和项目 · App Inventor 2 中文网
...在粘贴的块中重命名为 X2。
同样，如果你尝试粘贴过程 foo 的过程定义，并且工作区已包含 foo 的定义，则粘贴的过程将被重命名为 foo2。
可以将代码块粘贴到任何项目或屏幕中吗？
是的。 但是，在某些情况下，将背包中的...
Switch statement for string matching in JavaScript
... old, but this isn't quite true - you can actually do switch(true) { case /foo/.test(bar): ....
– Sean Kinsey
Oct 15 '11 at 2:50
23
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Making a mocked method return an argument that was passed to it
...s supper easy to return first argument, even for specific class, i.e. when(foo(any()).then(i -> i.getArgumentAt(0, Bar.class)). And you can just as well use a method reference and call real method.
– Paweł Dyda
Jan 29 '15 at 13:17
...
how to set textbox value in jquery
...on:
Assuming your URL returns 5.
If your HTML looks like:
<div id="foo"></div>
then the result of
$('#foo').load('/your/url');
will be
<div id="foo">5</div>
But in your code, you have an input element. Theoretically (it is not valid HTML and does not work as you ...
Set multiple properties in a List ForEach()?
...n also assign them when you create the list like :
var list = new List<foo>(new []{new foo(){a="hello!",b=99}, new foo(){a="hello2",b=88}});
share
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Purpose of Activator.CreateInstance with example?
...e. You could use Activator.CreateInstance for this:
string objTypeName = "Foo";
Foo foo = (Foo)Activator.CreateInstance(Type.GetType(objTypeName));
Here's an MSDN article that explains it's application in more detail:
http://msdn.microsoft.com/en-us/library/wccyzw83.aspx
...
Default implementation for Object.GetHashCode()
...d to compare equality of your class/struct.
Equals is used when checking
Foo A, B;
if (A == B)
Since we know the pointer isn't likely to match, we can compare the internal members.
Equals(obj o)
{
if (o == null) return false;
MyType Foo = o as MyType;
if (Foo == null) return false;
...
Why is whitespace sometimes needed around metacharacters?
...@DmitriChubarov Braces are allowed in command names (including functions: {foo} () { echo hello; }. "Name", as defined in by bash as "a word consisting only of alphanumeric characters and underscores, and beginning with an alphabetic character or an underscore", applies only to var...
How to implement an abstract class in ruby?
...o
@klass = Class.new do
extend Abstract
abstract_methods :foo, :bar
end
end
it "raises NoMethodError" do
proc {
@klass.new.foo
}.should raise_error(NoMethodError)
end
it "can be overridden" do
subclass = Class.new(@klass) do
def foo
:ove...