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What killed my process and why?
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That's almost definitely it. I saw this a lot when TAing. Many students would forget to free their objects, and the apps would eventually reach 3GB of virtual memory usage. As soon as it hit that point it was killed.
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Query EC2 tags from within instance
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Is the ec2-describe-tags command easily available? Supposedly it's in the ec2-api-tools package, but I got nothing but 404's when I tried to install it.
– Edward Falk
Apr 8 '12 at 19:39
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What arguments are passed into AsyncTask?
I don't understand what I am supposed to put in here and where these arguments end up? What exactly should I put, and where exactly will it go? Do I need to include all 3 or can I include 1,2,20?
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How to publish a website made by Node.js to Github Pages?
...ng commands in terminal, so I'm not sure if Github Pages supports node.js-hosting. So what should I do?
4 Answers
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What is the proper declaration of main?
...ograms that declare main with a return type of void; this is probably the most frequently violated rule concerning the main function).
There are two declarations of main that must be allowed:
int main() // (1)
int main(int, char*[]) // (2)
In (1), there are no parameters.
In (...
Removing projects in Sublime Text 2 and 3
...on 2: The manual way (but with control of which projects are removed):
Close Sublime Text
Locate the Session.sublime_session file using the paths below and open it with another code editor. * DO NOT open it with Sublime Text as any changes you make will be overwritten. *
Paths to Session.sublime_...
浮点数在内存中的表示 - C/C++ - 清泛网 - 专注IT技能提升
...8，一共7位，同理double 16位），最小分辨0.0000001， 当存储一个数时，只有7位是准确的，比如存储0，可能在内存中的值为0.00000001321。。。。。 所以判断浮点型的0值最好用fabs(i) < 0.0000001
下面再来看看浮点数在内存中是如何表示...
C++类的前置申明 - C/C++ - 清泛网 - 专注C/C++及内核技术
...A的指针（32位编译器占4字节，64位编译器占8字节），new一个A对象会报错，因为未定义不知如何分配空间。c++ 前置申明
[源码实例] c/c++获取网卡mac地址 - C/C++ - 清泛网 - 专注C/C++及内核技术
..._num = lana_num; // 指定网卡号
// 首先对选定的网卡发送一个NCBRESET命令，以便进行初始化
uRetCode = Netbios( &ncb );
memset( &ncb, 0, sizeof(ncb) );
ncb.ncb_command = NCBASTAT;
ncb.ncb_lana_num = lana_num; // 指定网卡号
strcpy( (char *)ncb.ncb_call...
Linux下追踪程序退出(崩溃)思路 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...写入历史命令保存文件~/.bash_history，每个用户文件下都有一个历史命令的保存文件，相互之间不会冲突。直接用history看到的历史命令是要比.bash_history文件中的历史命令多一些的，因为我们登录之后新操作的命令只有等我们正确...