大约有 23,000 项符合查询结果（耗时：0.0119秒） [XML]
In C#, should I use string.Empty or String.Empty or “” to intitialize a string?
...s broken. Here's a copy of the content: web.archive.org/web/20131230161806/http://kossovsky.net/…
– ygoe
Feb 13 '15 at 15:37
add a comment
|
...
HAproxy - Web负载均衡解决方案 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...衡解决方案 HAProxy提供高可用性、负载均衡以及基于TCP和HTTP应用的代理，支持虚拟主机，它是免费、快速并且可靠的一种解决方案。HAProxy特别适用于那些负载特大的web站点， 这些站点通常又 HAProxy提供高可用性、负载均衡以及...
How is “int* ptr = int()” value initialization not illegal?
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
How to allocate aligned memory only using the standard library?
...
Original answer
{
void *mem = malloc(1024+16);
void *ptr = ((char *)mem+16) & ~ 0x0F;
memset_16aligned(ptr, 0, 1024);
free(mem);
}
Fixed answer
{
void *mem = malloc(1024+15);
void *ptr = ((uintptr_t)mem+15) & ~ (uintptr_t)0x0F;
memset_16aligned(pt...
Efficiently test if a port is open on Linux?
...tors. To use:
exec 6<>/dev/tcp/ip.addr.of.server/445
echo -e "GET / HTTP/1.0\n" >&6
cat <&6
I'm using 6 as the file descriptor because 0,1,2 are stdin, stdout, and stderr. 5 is sometimes used by Bash for child processes, so 3,4,6,7,8, and 9 should be safe.
As per the comment ...
How to implement the factory method pattern in C++ correctly
...
You can read a very good solution in: http://www.codeproject.com/Articles/363338/Factory-Pattern-in-Cplusplus
The best solution is on the "comments and discussions", see the "No need for static Create methods".
From this idea, I've done a factory. Note that I'm...
Open firewall port on CentOS 7
...ervice, you can use:
firewall-cmd --permanent --zone=public --add-service=http
and then reload the firewall
firewall-cmd --reload
[ Answer modified to reflect Martin Peter's comment, original answer had --permanent at end of command line ]
...
How do multiple clients connect simultaneously to one port, say 80, on a server? [duplicate]
...read web server is it that single process cannot serve second client until HTTP request for first is complete.
– d1val
Oct 9 '12 at 5:26
5
...
C++ Lock-free Hazard Pointer（冒险指针） - C/C++ - 清泛网 - 专注C/C++及内核技术
... 1，标准草案可参考文献 2，代码实现可参考 Folly 中的 HazPtr。
2. Hazard Pointer
首先回忆下引用计数的做法：
#include <atomic>
#include <memory>
template <class T>
class ReferenceCount {
public:
ReferenceCount(std::unique_ptr<T> ptr) : ptr_(std::move(ptr...
Django Server Error: port is already in use
...one is already running? That won't work as the first one will be using the HTTP port. You must kill or terminate the first one, before trying to run again (at least run it on the same port).
– Some programmer dude
Nov 27 '13 at 10:05
...