大约有 15,000 项符合查询结果（耗时：0.0272秒） [XML]
What's the Hi/Lo algorithm?
...machine word size, rather than the meaningfully-sized ranges (eg obtaining 200 keys at a time) which a human might sensibly choose.
Hi-Lo usage tends to waste large numbers of keys on server restart, and generate large human-unfriendly key values.
Better than the Hi-Lo allocator, is the "Linear Ch...
C/C++ Struct vs Class
After finishing my C++ class it seemed to me the structs/classes are virtually identical except with a few minor differences.
...
Calling virtual functions inside constructors
Suppose I have two C++ classes:
13 Answers
13
...
How to use enums in C++
... can do std::string::clear to get a pointer to the member function, but in C++03, Days::Sunday is invalid. (Which is sad). This is because C++ is (somewhat) backwards compatable with C, and C had no namespaces, so enumerations had to be in the global namespace. So the syntax is simply:
enum Days...
c++关闭按钮灰掉 - C++ UI - 清泛IT社区，为创新赋能！
通过系统菜单灰掉：
//获得系统菜单
CMenu *pMenu = GetSystemMenu(false);
//获得关闭按钮ID
UINT ID = pMenu->GetMenuItemID(pMenu->GetMenuItemCount()-1);
//使关闭按钮无效
pMenu->EnableMenuItem(ID,MF_GRAYED);复制代码启用：
//获得系统菜单
CMenu *pMenu = G...
C++ SpinLock 自旋锁的代码实现（全网最简略的方式） - C/C++ - 清泛网 - ...
C++ SpinLock 自旋锁的代码实现（全网最简略的方式）cpp_spinlock1、最简单的一种，来自《C++并发编程实战》第5章 C++内存模型和原子类型操作： include <iostream> include <atomic> include <thread> include <vector> include <unistd h 1、最简单的一种，...
drag drop files into standard html file input
... of important*/
width: 300px;
/*Sort of important*/
height: 200px;
position:absolute;
left:50%;
top:100px;
margin-left:-150px;
border: 2px dashed rgba(0,0,0,.3);
border-radius: 20px;
font-family: Arial;
text-align: center;
position: relativ...
C++ Singleton design pattern
...mped into a realization/implementation of the Singleton design pattern for C++. It has looked like this (I have adopted it from the real life example):
...
WAMP shows error 'MSVCR100.dll' is missing when install
...
The MSVCR100.dll file is part of the Microsoft Visual C++, redistributables. You can install them and see if this solves your problem. After you install the above check if your wamp installation is correctly setup. Search for "my wamp icon stays orange" posts.
UPDATE 2019
W...
How do I make a semi transparent background?
...NG up to 10x10, 100x100, etc. Whatever makes sense on your page. (I used a 200x200 PNG and it was only 0.25 kb, so there's no real concern over file size here.)
After visiting this post, I created my web page with 3, 1x1 PNGs with varying transparency.
Dreamweaver CS5 was tanking. I was having fl...