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How do I find where an exception was thrown in C++?
...ntext;
// Get the address at the time the signal was raised from the EIP (x86)
void * caller_address = (void *) uc->uc_mcontext.eip;
std::cerr << "signal " << sig_num
<< " (" << strsignal(sig_num) << "), address is "
&l...
httpd: Could not reliably determine the server's fully qualified domain name, using 127.0.0.1 for Se
...m
Choose an FQDN and include it both in your /etc/hosts file on both the IPv4 and IPv6 addresses you are using (in your case, localhost or 127.0.0.1), and change your ServerName in your httpd configuration to match.
/etc/hosts:
127.0.0.1 localhost.localdomain localhost host.server4-245.com
::...
Live-stream video from one android phone to another over WiFi
...sample code for the server:
// this is your network socket
ParcelFileDescriptor pfd = ParcelFileDescriptor.fromSocket(socket);
mCamera = getCameraInstance();
mMediaRecorder = new MediaRecorder();
mCamera.unlock();
mMediaRecorder.setCamera(mCamera);
mMediaRecorder.setAudioSource(MediaRecorder.AudioS...
Using ping in c#
...ply reply = pinger.Send(nameOrAddress);
pingable = reply.Status == IPStatus.Success;
}
catch (PingException)
{
// Discard PingExceptions and return false;
}
finally
{
if (pinger != null)
{
pinger.Dispose();
}
}
retu...
从网购到火车票，对比淘宝12306网为何如此烂？ - 大数据 & AI - 清泛网 - ...
...难度大得多，属于世界级难题。
3) 火车票的信息是实时更新的。网民的每次操作都必须到后台查询，实时生成新的火车票的状态信息。淘宝商品库存信息在促销期间不准确，这是服务端为了关键性能做妥协;但订火车票，库存信...
java.net.UnknownHostException: Invalid hostname for server: local
...hostname "localhost" instead, or perhaps 127.0.0.1 or ::1 (the last one is IPv6).
From the javadocs:
Thrown to indicate that the IP address
of a host could not be determined.
127.0.0.1or ::1 or "localhost" should always be the loopback interface, so if that doesn't work I'd be really surpri...
Simplest way to detect a mobile device in PHP
...
Here is a source:
Detect Mobile Browser
Download PHP script
Code:
<?php
$useragent=$_SERVER['HTTP_USER_AGENT'];
if(preg_match('/(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|n...
std::map 插入数据时内部自动排序 - C/C++ - 清泛网 - 专注C/C++及内核技术
std::map 插入数据时内部自动排序map是关联容器，内部结构是树结构，保持了元素有序，使得对内部元素插入和删除操作的复杂度降低。若要想保持和输入顺序一致，可以考虑使用...map是关联容器，内部结构是树结构，保持了元素...
Linux automake自动编译全攻略 - 脚本技术 - 清泛IT社区，为创新赋能！
通过一个简单但经典、全面的例子教大家如何使用automake自动编译自己的工程。
automake通常用于大型工程的自动化编译，我们只需编写Makefile.am，它的规则比直接编写Makefile简单得多（Makefile不熟悉的要好好学习一下），而且也灵...
Jenkins持续集成（CI）：开发过程中自动执行UT测试 - 项目管理 - 清泛网 - ...
Jenkins持续集成（CI）：开发过程中自动执行UT测试Jenkins-CI软件测试技术是软件开发过程中的一个重要组成部分，是贯穿整个软件开发生命周期、对软件产品（包括阶段性产品）进行验证和确认的活动过程。其目的是尽快尽早地发...