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boost多索引容器multi_index_container实战 - C/C++ - 清泛网 - 专注C/C++及内核技术
...些知识有过了解
什么是多索引容器？为什么要使用它？如何使用？
接下来一一回答以上的问题。
想必大家在实际开发中一定多多少少会遇到以下的问题，我需要创建一个map，并且需要两种方式去索引，比如：创建一个<学号,...
When do I use a dot, arrow, or double colon to refer to members of a class in C++?
...ked.
The small print:
In C++, types declared as class, struct, or union are considered "of class type". So the above refers to all three of them.
References are, semantically, aliases to objects, so I should have added "or reference to a pointer" to the #3 as well. However, I thought this...
互联网医疗新格局：顶级医生入场 - 资讯 - 清泛网 - 专注C/C++及内核技术
...、最终解决“看病难”的问题？他们的这些尝试，最终会如何改造互联网医疗的产业格局、以及中国医疗的组织形态？网易科技将继续选取其中的代表性商业模式，推出系列报道。
相关阅读：
“体制内医生集团”获千万级融...
Sass .scss: Nesting and multiple classes?
...ay want to go more classes up than one. In this case you could try the @at-root and #{} css features which would enable two root classes to sit next to each other using &.
This wouldn't work (due to the nothing before & rule):
container {
background:red;
color:white;
...
What are the applications of binary trees?
...hing when you balance them. This involves rotating sub-trees through their root node so that the height difference between any two sub-trees is less than or equal to 1. Adding those names above one at a time into a balanced tree would give you the following sequence:
1. Alice
/ \
= ...
Setting environment variables via launchd.conf no longer works in OS X Yosemite/El Capitan/macOS Sie
...vironment variables definition:
$ ls -la /etc/environment
-r-xr-xr-x 1 root wheel 369 Oct 21 04:42 /etc/environment
$ cat /etc/environment
#!/bin/sh
set -e
syslog -s -l warn "Set environment variables with /etc/environment $(whoami) - start"
launchctl setenv JAVA_HOME /usr/local/jdk1.7...
Force point (“.”) as decimal separator in java
...ing.format which lets you specify the locale:
return String.format(Locale.ROOT, "%.2f", someDouble);
If you're only formatting a number - as you are here - then using NumberFormat would probably be more appropriate. But if you need the rest of the formatting capabilities of String.format, this sh...
What is the difference between gmake and make?
...gmake is soft link to make):
-> ls -l $(which gmake make)
lrwxrwxrwx 1 root root 4 Jun 5 2007 /usr/bin/gmake -> make
-rwxr-xr-x 1 root root 168976 Jul 13 2006 /usr/bin/make
gmake stands for GNU make. There're different implementations of make. On Linux machine most probably make wil...
accepting HTTPS connections with self-signed certificates
...mportant parts from my blog article here:
Grab all required certificates (root and any intermediate CA’s)
Create a keystore with keytool and the BouncyCastle provider and import the certs
Load the keystore in your android app and use it for the secured connections (I recommend to use the Apache H...
How do I set up DNS for an apex domain (no www) pointing to a Heroku app?
...
(Note: root, base, apex domains are all the same thing. Using interchangeably for google-foo.)
Traditionally, to point your apex domain you'd use an A record pointing to your server's IP. This solution doesn't scale and isn't viabl...