#include <time.h> int delay(int time) { int i,j; for(i =0;i<time;i++) for(j=0;j<10000;j++) ; } int main() { struct timespec start_1, end_1; unsigned long long diff; clock_gettime(CLOCK_REALTIME, &start_1); delay(10); // UUT unit under test…

http://www.onjava.com/pub/a/onjava/2001/05/30/optimization.htmlComparing the performance of LinkedLists and ArrayLists (and Vectors) (Page last updated May 2001, Added 2001-06-18, Author Jack Shirazi, Publisher OnJava). Tips: ArrayList is faster than…

Basic Information Authors: Jooyong Yi, Shin Hwei Tan, Sergey Mechtaev, Marcel Böhme, Abhik Roychoudhury Publication: EMSE'17 Conclusion: In general, with the increase of traditional test suite metrics, the reliability of repairs tend to increase. In…

From:  http://www.pamitc.org/cvpr15/program.php Official Program for CVPR 2015 Monday, June 8 8:30am-8:40am Ballrooms A,B,C Rooms 302,304,306 Opening Remarks from Conference Chairs The opening remarks will be made from Ballrooms A,B,C, but a live vid…

上一次接触 project euler 还是2011年的事情,做了前三道题,后来被第四题卡住了,前面几题的代码也没有保留下来. 今天试着暴力破解了一下,代码如下: (我大概是第 172,719 个解出这道题的人) program 4 A palindromic number reads the same both ways. The largest palindrome made from the product of two 2-digit numbers is 9009 = 91 × 99.…

When you publish your ASP.NET project to a hosting account such as GoDaddy, you may run into the issue below. This issue may occur even though your code works fine in localhost. Server Error in ‘/’ Application. . Parser Error Description: An error oc…

在 GCC ARM Embedded https://launchpad.net/gcc-arm-embedded/ 上面下载了个arm-none-eabi-gcc 用cmake 编译时 #指定C交叉编译器,必须配置#或交叉编译器使用绝对地址 SET(CMAKE_C_COMPILER "/disk2/gcc-arm-none-eabi-4.8.3/bin/arm-none-eabi-gcc") #指定C++交叉编译器 SET(CMAKE_CXX_COMPILER "/disk…

今天在C代码中使用gets()时提示“warning: this program uses gets(), which is unsafe.”,然后这个程序还能运行,无聊的我开始查阅资料,为啥gets()会unsafe呢. 通过Google查阅前辈的问答,原来是这么回事. gets()这个函数只有一个参数,那就是字符缓冲区的指针,并没有指定该缓冲区的长度也就是大小.当你输入一个很长很长的字符串的时候,gets ()函数会把每一个字符都存入到栈(statck)中,因此当字符串很大的时候就会导致程序…

作为一名Android开发人员,我们都知道一个View从无到有,会经历3个阶段: 1. measure/测量阶段,也就是确定某个view大小的过程: 2. layout/布局阶段,也就是确定其左上右下坐标的过程: 3. draw/绘制阶段,也就是按照前面2步计算的结果,将view绘制在屏幕相应的位置上: 今天,我带领大家来看看View系统的measure过程.到现在相信大部分人都知道measure是从ViewRootImpl.measureHierarchy 方法开始的,但归根结底是从perfo…

Unable to load R3 module D:\Program Files\Oracle\VirtualBox/VBoxDD.DLL (VBoxDD): GetLastError=1790 (VERR_UNRESOLVED_ERROR). 返回 代码: E_FAIL (0x80004005) 组件: ConsoleWrap 界面: IConsole {872da645-4a9b-1727-bee2-5585105b9eed} 查看日志文件,错误代码: 00:00:00.430041 ma…