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NSInvalidUnarchiveOperationException: Could not instantiate class named NSLayoutConstraint
... when you create a new iOS project in Xcode 4.5, your storyboard or XIB is set to use Autolayout, which is a new feature in iOS 6.0. The NSLayoutConstraint class is part of the Autolayout system, and it doesn't exist in older versions of iOS.
If you want to deploy your app to an older version of i...
Where are sudo incidents reported? [closed]
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Shouln't it be root unless there is some forwarding set? The whole point should be that the email is sent to the administrator. Also, sure, once some forwarding is set, you can cat the spool file, but you can also use some mail client, like mail, nail, or something else that s...
Get data from JSON file with PHP [duplicate]
... of the array in a nice readable format. Note that the second parameter is set to true in order to let print_r() know that the output should be returned (rather than just printed to screen). Then, you access the elements you want, like so:
$temperatureMin = $json['daily']['data'][0]['temperatureMin...
BugTrap：程序崩溃快照、bug跟踪之利器 - C/C++ - 清泛网 - 专注C/C++及内核技术
...BugTrap使用方法：
BOOL CMarketInfoApp::InitInstance()
{
...
SetRegistryKey(_T("应用程序向导生成的本地应用程序"));
// 开启程序崩溃感知
SetUnhandledExceptionFilter(MyUnhandledExceptionFilter);
...
}
逻辑处理MyBugTrap.cpp：
#include "stdafx.h...
【解决】Linux mysql如何重置root密码？ - 更多技术 - 清泛网 - 专注C/C++及内核技术
【解决】Linux mysql如何重置root密码？linux_reset_root_password1 前言忘记你的MySQL root密码？ 别担心，它发生在我们所有人身上。在本教程中，我们将向您展示如何重置MySQL root密码，以防您忘记密码。 本教程适用于任何现代Linux发行...
“From View Controller” disappears using UIViewControllerContextTransitioning
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I've checked and the key window's rootViewController is still correctly set, so that's fine. I'm not sure what would happen if you presented your controller from within an already presented modal controller, so for more complex cases, you'll have to experiment around.
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Call a Server-side Method on a Resource in a RESTful Way
...ex, impossible to debug, and won't work unless your clients have the exact setup as the developer intended.
Same way a Java/C# code can be not object-oriented, just using HTTP does not make a design RESTful. One may be caught up in the rush of thinking about their services in terms of actions and r...
Why is this program erroneously rejected by three C++ compilers?
...mapped, in an implementation-defined manner, to the basic source character set (introducing new-line characters for end-of-line indicators) if necessary.
Your compiler doesn't support that format (aka cannot map it to the basic source character set), so it cannot move into further processing stage...
Adding additional data to select options using jQuery
...t (and have for 10+ years) "invalid" attributes in the markup, and getting/setting these through the DOM. HTML5 "data" attributes are just custom attributes with a naming scheme and a new standard that declares them to be legal.
– Phrogz
Dec 30 '10 at 19:10
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Show/hide 'div' using JavaScript
...e by checking the computed value of the display property. If it's visible, set the display to none, otherwise remove the inline display styling, and if it's still hidden, set the display to the specified value or the hardcoded default, block.
function toggle (elements, specifiedDisplay) {
var ele...