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What is the difference between memmove and memcpy?
... that way. Thats indeed relevant as most memmove implementations just do a XOR-swap.
– dhein
May 8 '15 at 11:25
3
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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
...您当前的架构中， 同时可以保护你的web服务器不被暴露到网络上。
下图是HAProxy的架构：
下图是HAProxy的监控页面截图：
HAProxy实现了一种事件驱动, 单一进程模型，此模型支持非常大的并发连接数。多进程或多线程模型受...
How to remove an item for a OR'd enum?
...
What about xor(^)?
Given that the FLAG you are trying to remove is there, it will work.. if not, you will have to use an &.
public enum Colour
{
None = 0, // default value
RED = 2,
BLUE = 4,
GREEN = 8,
YELLOW ...
What does the [Flags] Enum Attribute mean in C#?
...
If you want to exclude a flag from the enumeration, use xor, which is ^ in C#. So if you have myProperties.AllowedColors = MyColor.Red | MyColor.Green | MyColor.Blue;. You can do: myProperties.AllowedColors = myProperties.AllowedColors ^ MyColor.Blue //myProperties.AllowedColors =...
What is getattr() exactly and how do I use it?
...alues:
>>> dir(1000)
['__abs__', '__add__', ..., '__trunc__', '__xor__', 'bit_length', 'conjugate', 'denominator', 'from_bytes', 'imag', 'numerator', 'real', 'to_bytes']
>>> obj = 1000
>>> for attr_name in dir(obj):
... attr_value = getattr(obj, attr_name)
... pr...
未能从“const std::string”为“const std::_Tree<_Traits> &”...
http://blog.csdn.net/mfcing/article/details/44157227
安卓App可以实现从其他App的目录中拷贝文件吗？ - App应用开发 - 清泛IT社...
先说结论：不可以，因为安卓的核心安全机制（沙箱机制）禁止访问其他app的私有目录。
例外：
1、取得了root权限。
2、公共目录可以，比如相册目录、/sdcard 目录等。
3、如果其他应用通过 ContentProvider 或 FileProvider 显式共...
Redefining NULL
... trick is to hack the compiler so that pointer<->integer conversions XOR a specific value that is an invalid pointer and still trivial enough that the target architecture can do that cheaply (usually, that would be a value with a single bit set, such as 0x20000000).
– Sim...
How are echo and print different in PHP? [duplicate]
... is just about at the bottom
of the precedence list though. Only , AND OR XOR are lower.
Parameter(s). The grammar is: echo expression [, expression[,
expression] ... ] But echo ( expression, expression ) is not valid.
This would be valid: echo ("howdy"),("partner"); the same as: echo
"howdy","...
Git: Remove committed file after push
... answered Feb 26 '14 at 12:25
xorxor
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