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Can C++ code be valid in both C++03 and C++11 but do different things?
...r* s = u8"def"; // Previously "abcdef", now "def"
and
#define _x "there"
"hello "_x // Previously "hello there", now a user defined string literal
Type conversions of 0
In C++11, only literals are integer null pointer constants:
void f(void *); // #1
void f(...); // #2
template<int N> void g...
Target elements with multiple classes, within one rule
...e-border or background class, for example:
<div class="blue-border">Hello</div>
<div class="background">World</div>
<div class="blue-border background">!</div>
would all get a blue border and white background applied to them.
However, the accepted answer is di...
Typedef function pointer?
...esn't define one, like this:
FunctionFunc x;
void doSomething() { printf("Hello there\n"); }
x = &doSomething;
x(); //prints "Hello there"
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...
Local file access with JavaScript
...Goods*
Write file:
bakedGoods.set({
data: [{key: "testFile", value: "Hello world!", dataFormat: "text/plain"}],
storageTypes: ["fileSystem"],
options: {fileSystem:{storageType: Window.PERSISTENT}},
complete: function(byStorageTypeStoredItemRangeDataObj, byStorageTypeErrorObj){}
});...
基于PECL OAuth打造微博应用 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...看搜狐是如何发送文本加图片消息的：
<?php
$text = 'hello, world.';
$image = 'http://www.foo.com/bar.gif';
$oauth = OAuth(
'YOUR_CONSUMER_KEY',
'YOUR_CONSUMER_SECRET',
OAUTH_SIG_METHOD_HMACSHA1,
OAUTH_AUTH_TYPE_AUTHORIZATION
);
$oauth->setToken(
...
Get element inside element by class and ID - JavaScript
...odbye world!";
<div id="foo">
<div class="bar">
Hello world!
</div>
</div>
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C＋＋模板的特化 - C/C++ - 清泛网 - 专注C/C++及内核技术
...点数、class类型的对象和内部链接对象（例如字符串常量"hello world!"）作为实参；它们可以是常整数（包括枚举值）或者指向外部链接对象的指针。
对外部链接对象的指针举个例子：
template <char const* name>
class MyClass {...};
e...
error upon assigning Layout: BoxLayout can't be shared
...e.setLayout(new BoxLayout(frame, BoxLayout.Y_AXIS));
frame.add(new JLabel("Hello World!"));
The control is actually being added to the ContentPane so it will look like it's 'shared' between the JFrame and the ContentPane
Do this instead:
JFrame frame = new JFrame();
frame.setLayout(new BoxLayout...
What's the difference between subprocess Popen and call (how can I use them)?
...t here is a rule of thumb:
call is blocking:
call('notepad.exe')
print('hello') # only executed when notepad is closed
Popen is non-blocking:
Popen('notepad.exe')
print('hello') # immediately executed
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Can't use Swift classes inside Objective-C
...alling code)
SwiftClass *obj = [[SwiftClass alloc] initWithStringValue: @"Hello World!"];
[obj printValue];
NSString * str = obj.stringValue;
obj.stringValue = @"HeLLo wOrLd!!!";
Result
4. Call Objective-c class from Swift code
Objective-C class (ObjcClass.h)
#import <Foundation/Foundation.h...