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Try catch statements in C

... exceptions but you can simulate them to a degree with setjmp and longjmp calls. static jmp_buf s_jumpBuffer; void Example() { if (setjmp(s_jumpBuffer)) { // The longjmp was executed and returned control here printf("Exception happened here\n"); } else { // Normal code execution s...
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What are the differences between json and simplejson Python modules?

...ossible. A good practice, in my opinion, is to use one or the other as a fallback. try: import simplejson as json except ImportError: import json share | improve this answer | ...
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UICollectionView Set number of columns

...[self.myCollectionView.collectionViewLayout invalidateLayout]; } Additionally, here are 2 really good tutorials on UICollectionViews: http://www.raywenderlich.com/22324/beginning-uicollectionview-in-ios-6-part-12 http://skeuo.com/uicollectionview-custom-layout-tutorial ...
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Timer function to provide time in nano seconds using C++

...psets, so you may want to make sure you do not have those chipset. Additionally some dual core AMDs may also cause a problem. See the second post by sebbbi, where he states: QueryPerformanceCounter() and QueryPerformanceFrequency() offer a bit better resolution, but have different issues. ...
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【解决】File does not reside within any path specified using proto_pat...

...lative) are equivalent (it's harder than you think). 总之就是看不懂报错信息,大概是.proto文件没找到导致,但明明就是正确地指定了文件路径。 解决: 加 -I 或 --proto-path ,指定.proto文件路径即可解决。 # ./protoc --cpp_out=. ../main/...
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Android商业模拟器如何使用? - App Inventor 2 中文网 - 清泛IT社区,为创新赋能!

...启动后,在模拟器设置中设置为手机模式,选择适合自己分辨率。帮助菜单 –> AI伴侣信息,或直接点此下载AI伴侣apk安装包到电脑,然后模拟器菜单选择安装apk,完成AI伴侣App安装并启动它。开始测试:连接 –> AI伴侣...
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为什么切换笔记到文本框显示会出现乱码? - App应用开发 - 清泛IT社区,为...

转:有会员提问,自己笔记功能出现乱码如何解决? ----------------- A:其实都不用去看具体代码,这里用是“网络微数据库”,然后用是默认参数,即MIT服务器,它不支持中文,就这么简单! 换国内服务器就好...
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如何在文本输入框中自动加入空格 - App Inventor 2 中文网 - 清泛IT社区,为创新赋能!

如何在文本输入框中自动加入空格?已回复。 Q:输入十六进制,每2个字符对应一个十六进制数,想显示时候自动加上空格 A:这个只能加逻辑,遍历十六进制,每2位 然后拼接一个空格。
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AppInventor2能实现不跳转相机直接预览拍照吗? - App应用开发 - 清泛IT社...

...能实现相机预览,就是点击按钮直接拍照不跳转相机界面那种。 A:根据AI回答,CameraX API可以实现,谷歌了一下,TaifuImage官方说了不打算开发这个拓展,因为已经有现成拓展了,叫:ProCamera。 下载地址:https://community...
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How disable Copy, Cut, Select, Select All in UITextView

The UITextView 's Copy, Cut, Select, Select All functionality is shown by default when I press down on the screen. But, in my project the UITextField is only read only. I do not require this functionality. Please tell me how to disable this feature. ...