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Reference: Comparing PHP's print and echo
...equence:
<?php
function bar( $baz ) {
// other code
}
function foo() {
return print("In and out ...\n");
}
if ( foo() ) {
bar();
}
You might find print of particular value when it comes to debugging on the fly, as the next example illustrates:
<?php
$haystack = 'abcde';
$n...
Dual emission of constructor symbols
...e Itanium C++ ABI.
According to the ABI, the mangled name for your Thing::foo() is easily parsed:
_Z | N | 5Thing | 3foo | E | v
prefix | nested | `Thing` | `foo`| end nested | parameters: `void`
You can read the constructor names similarly, as below. Notice how the constructor ...
Citrix服务器虚拟化：XenApp 6.5发布服务器上的应用程序 - 更多技术 - 清泛...
...。选择了此应用程序类型后，必须为要发布的文件指定 URL（统一资源定位器）或 UNC（通用命名约定）路径。
单击浏览可查看网络中的可用内容资源。
3) 应用程序：发布安装在场中的一台或多台服务器上的应用程序。请注意...
Access to Modified Closure (2)
...onymous handler, the trick is to capture the handler itself:
EventHandler foo = delegate {...code...};
obj.SomeEvent += foo;
...
obj.SomeEvent -= foo;
Likewise, if you want a once-only event-handler (such as Load etc):
EventHandler bar = null; // necessary for "definite assignment"
bar = delegat...
Using PHP with Socket.io
...lient::TYPE_EVENT,
null,
null,
json_encode(array('name' => 'foo', 'args' => 'bar'))
);
$elephant->close();
echo 'tryin to send `bar` to the event `foo`';
socket io server
var io = require('socket.io').listen(8000);
io.sockets.on('connection', function (socket) {
console.l...
Possibility of duplicate Mongo ObjectId's being generated in two different collections?
...the mongo shell:
MongoDB shell version: 1.6.5
connecting to: test
> db.foo.insert({_id: 'abc'})
> db.bar.insert({_id: 'abc'})
> db.foo.find({_id: 'abc'})
{ "_id" : "abc" }
> db.bar.find({_id: 'abc'})
{ "_id" : "abc" }
> db.foo.insert({_id: 'abc', data:'xyz'})
E11000 duplicate key err...
How to write an async method with out parameter?
...urn result utilizes the method signature defined property names. e.g:
var foo = await TryLogin(request);
if (foo.IsSuccess)
return foo.Result;
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Circle line-segment collision detection algorithm?
I have a line from A to B and a circle positioned at C with the radius R.
27 Answers
...
C# - Selectively suppress custom Obsolete warnings
...le:
using System;
class Test
{
[Obsolete("Message")]
static void Foo(string x)
{
}
static void Main(string[] args)
{
#pragma warning disable 0618
// This one is okay
Foo("Good");
#pragma warning restore 0618
// This call is bad
Foo("Bad");
...
Change the Right Margin of a View Programmatically?
Can this attribute be changed dynamically in Java code?
4 Answers
4
...