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What new capabilities do user-defined literals add to C++?
...o using user-defined literals instead of a constructor call:
#include <bitset>
#include <iostream>
template<char... Bits>
struct checkbits
{
static const bool valid = false;
};
template<char High, char... Bits>
struct checkbits<High, Bits...>
{
stat...
How to check whether a string is Base64 encoded or not
...
10
Just wanted to verify so please help with my question : What is the guarantee that this regex will always refers to only base64 string?? If...
How to not run an example using roxygen2?
...
this doesn't work for me (running on Win 10, 64 bit, R version 3.5.0)
– JBJ
Apr 26 '19 at 9:59
add a comment
|
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How to sleep for five seconds in a batch file/cmd [duplicate]
Windows's Snipping tool can capture the screen, but sometimes I want to capture the screen after five seconds, such as taking an image being displayed by the webcam. (Run the script and smile at the camera, for example.)
...
How can I scale an image in a CSS sprite
...n with attribution of the original work/author
– All Bits Equal
Nov 12 '18 at 15:11
add a com...
How to install Java SDK on CentOS?
...all command on 5.6).
– crmpicco
Apr 10 '14 at 17:01
After Installation: configuring iptables on centos 6.5 -> /etc/...
Solving “Who owns the Zebra” programmatically?
.../Mac/BSD):
$ bzip2 -cd python-constraint-1.2.tar.bz2 | tar xvf -
extract (Windows, with 7zip):
> 7z e python-constraint-1.2.tar.bz2
> 7z e python-constraint-1.2.tar
install:
$ cd python-constraint-1.2
$ python setup.py install
...
Why not use java.util.logging?
...ultimately you decide not to care about popular opinion, consider the following facts:
those who prefer j.u.l do so out of convenience because j.u.l is bundled with the JDK. To my knowledge there are no other objective arguments in favor of j.u.l.
your own preference for j.u.l is just that, a pref...
搭建高可用mongodb集群（四）—— 分片 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...端口可以自由定义，在本文 mongos为 20000， config server 为 21000， shard1为 22001 ， shard2为22002， shard3为22003.
6、在每一台服务器分别启动配置服务器。
/data/mongodbtest/mongodb-linux-x86_64-2.4.8/bin/mongod --configsvr --dbpath /data/mongodbtest/conf...
Why isn't `int pow(int base, int exponent)` in the standard C++ libraries?
.... Its original intent was C-with-classes, not C-with-classes-plus-a-little-bit-of-extra-math-stuff.
As to why it was never added to the standards before C++11, you have to remember that the standards-setting bodies have specific guidelines to follow. For example, ANSI C was specifically tasked to c...