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ATL CComPtr和CComQIPtr详解 - C/C++ - 清泛网 - 专注C/C++及内核技术
ATL CComPtr和CComQIPtr详解ATL-CComPtr-CComQIPtrCComPtr和CComQIPtr的不同的地方：CComPtr只能创建固定的特定的接口指针实例。而CComQIPtr不但实现了CComPtr的所有的功能，而且当我们把一个不同类型的接口指针赋值给CComQIPtr的时候，CComQIPtr会自...
ATL CComPtr和CComQIPtr详解 - C/C++ - 清泛网移动版 - 专注C/C++及内核技术
ATL CComPtr和CComQIPtr详解ATL-CComPtr-CComQIPtrCComPtr和CComQIPtr的不同的地方：CComPtr只能创建固定的特定的接口指针实例。而CComQIPtr不但实现了CComPtr的所有的功能，而且当我们把一个不同类型的接口指针赋值给CComQIPtr的时候，CComQIPtr会自...
ATL CComPtr和CComQIPtr详解 - C/C++ - 清泛网 - 专注C/C++及内核技术
ATL CComPtr和CComQIPtr详解ATL-CComPtr-CComQIPtrCComPtr和CComQIPtr的不同的地方：CComPtr只能创建固定的特定的接口指针实例。而CComQIPtr不但实现了CComPtr的所有的功能，而且当我们把一个不同类型的接口指针赋值给CComQIPtr的时候，CComQIPtr会自...
How to install Java SDK on CentOS?
...d it and directly install via rpm.
For all who are interested:
wget -q http://www.oracle.com/technetwork/java/javase/downloads/index.html -O ./index.html && grep -Eoi ']+>' index.html | grep -Eoi '/technetwork/java/javase/downloads/jdk8-downloads-[0-9]+.html' | (head -n 1) | awk '{pri...
Node / Express: EADDRINUSE, Address already in use - Kill server
...ll any process running on a given port (8000 in this example): lsof -n -i4TCP:8000 | grep LISTEN | tr -s ' ' | cut -f 2 -d ' ' | xargs kill -9
– lukejacksonn
Jan 11 '16 at 16:57
...
C++ Singleton design pattern
...bjects that use the singleton no longer need it.
In this case std::shared_ptr can be used to keep the singleton alive for all users even when the static destructors are being called at the end of the program:
class Singleton
{
public:
Singleton(Singleton const&) = delete;
Singleton&...
Vagrant's port forwarding not working [closed]
...is an actual answer instead of just more comments.
First thing: try curl 'http://localhost:80' from within the VM. If that doesn't work, then it's definitely not the port forwarding.
Next: try curl -v 'http://localhost:4567/' from your host machine. Curl might give you a better error message tha...
What is a lambda expression in C++11?
...
and one taken from Wikipedia showing how to capture with std::move:
auto ptr = std::make_unique<int>(10); // See below for std::make_unique
auto lambda = [ptr = std::move(ptr)] {return *ptr;};
Generic Lambdas
Lambdas can now be generic (auto would be equivalent to T here if
T were a type ...
How to find the 'sizeof' (a pointer pointing to an array)?
... bigger than the one you need, stash the size in the first int, and return ptr+1 as the pointer to the array. When you need the size, decrement the pointer and peek at the stashed value. Just remember to free the whole block starting from the beginning, and not just the array.
...
How do I close an open port from the terminal on the Mac?
...| grep :<port_number>
For example, say this process holds port 8000 TCP, then running the command:
sudo netstat -ap | grep :8000
will output the line corresponding to the process holding port 8000, for example:
tcp 0 0 *:8000 *:* LISTEN 4683/procHoldingPort
In this case, procHoldingPor...