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SQL query to find record with ID not in another table
I have two tables with binding primary key in database and I desire to find a disjoint set between them. For example,
6 Ans...
How do I download a tarball from GitHub using cURL?
I am trying to download a tarball from GitHub using cURL , but it does not seem to be redirecting:
5 Answers
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lenses, fclabels, data-accessor - which library for structure access and mutation is better
There are at least three popular libraries for accessing and manipulating fields of records. The ones I know of are: data-accessor, fclabels and lenses.
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How does SIGINT relate to the other termination signals such as SIGTERM, SIGQUIT and SIGKILL?
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– Jonathan Leffler
Oct 29 '10 at 14:05
TTY Demystified has some easily digestable information on how signals interact ...
grep output to show only matching file
What is the option for grep that will allow me only to print the matching file and not the line within a file that matches the criteria?
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二维码的生成细节及原理 - 更多技术 - 清泛网 - 专注C/C++及内核技术
... 1849 转成 11100111001
(2) 等于 2 转成 000010
4. 把这些二进制连接起来：00111001110 11100111001 000010
5. 把字符的个数转成二进制 (Version 1-H为9 bits ): 5个字符，5转成 000000101
6. 在头上加上编码标识 0010 和第5步的个数编码: 0010 000000101 00111...
盘点微软历史上9大失败软件产品！ - 创意 - 清泛网 - 专注C/C++及内核技术
...务软件的目的是为信息、用户、系统、各种设备提供无缝连接的一组软件产品或服务。但不久，全世界都发觉这个定义操作起来太不现实。微软自己也一度承认其对 .NET 的定义和使用给用户带来了困惑，后来“.NET”就不在 Windows...
程序员，你有多久没有跳出技术关注业界了？ - 创意 - 清泛网 - 专注C/C++及内核技术
...如须要移动端开发时，要注意移动端开发的特殊性，网络连接与资源消耗大，流量也需要加以注意。这个时候，我们可以从后端技术上主动去做一些调整，比如减少连接，比如压缩数据，让前端做到更优化，如果前端的童鞋不懂...
C++11 tuple 这一篇就够了 - C/C++ - 清泛网 - 专注C/C++及内核技术
...f t2 is (7, 1)
接下来介绍tie()函数。 tie()函数可以将变量连接到一个给定的tuple上，生成一个元素类型全是引用的tuple,相当于make_tuple(ref(a),ref(b),…)。可以通过tie()函数的使用方便的对tuple进行“解包”操作。看下面的代码：
#in...
C++ 通过主机名/域名获取IP - C/C++ - 清泛网 - 专注C/C++及内核技术
...件定义了Socket编程的功能 #pragma comment(lib,"ws2_32.lib") 连接ws2_32.lib库...代码如下：
#include <winsock2.h> //该头文件定义了Socket编程的功能
#pragma comment(lib,"ws2_32.lib") //连接ws2_32.lib库.只要程序中用到Winsock API 函数，都要用到 Ws2...