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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...
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
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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
...
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. ...
【解决】File does not reside within any path specified using proto_pat...
...lative) are equivalent (it's harder than you think).
总之就是看不懂的报错信息,大概是.proto文件没找到导致的,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文件的路径即可解决。
# ./protoc --cpp_out=. ../main/...
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,选择适合自己的分辨率。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的安装并启动它。开始测试:连接 –> AI伴侣...
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,自己的笔记功能出现乱码如何解决?
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A:其实都不用去看具体代码,这里用的是“网络微数据库”,然后用的是默认参数,即MIT服务器,它不支持中文,就这么简单!
换国内的服务器就好...
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:输入的十六进制,每2个字符对应一个十六进制数,想显示的时候自动加上空格
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。
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的那种。
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,因为已经有现成的拓展了,叫:ProCamera。
下载地址:https://community...
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.
...
