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Difference between Pragma and Cache-Control headers?
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Pragma is the HTTP/1.0 implementation and cache-control is the HTTP/1.1 implementation of the same concept. They both are meant to prevent the client from caching the response. Older clients may not support HTTP/1.1 which is why that header is ...
Switch statement for greater-than/less-than
...ymmv) normalized after the fastest operation in each browser (multiply the 1.0 time with the normalized value to get the absolute time in ms).
Chrome Firefox Opera MSIE Safari Node
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1.0 time ...
How can I get the iOS 7 default blue color programmatically?
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It appears to be [UIColor colorWithRed:0.0 green:122.0/255.0 blue:1.0 alpha:1.0].
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What are differences between AssemblyVersion, AssemblyFileVersion and AssemblyInformationalVersion?
...he format: major.minor. This would result in:
[assembly: AssemblyVersion("1.0")]
If you're following SemVer strictly then this means you only update when the major changes, so 1.0, 2.0, 3.0, etc.
AssemblyFileVersion
Used for deployment. You can increase this number for every deployment. It is u...
重构理论及实践——用工厂模式重构c++后台代码 - C/C++ - 清泛网 - 专注C/C...
...构的，架构的问题咱们在这儿就不展开聊了：）
代码V1版
遵循tsf4j的tapp写法，ServerCenterApp类是后台程序的主逻辑类，其中process_pkg是消息处理的主逻辑函数。会对不同的消息调用不同的消息processor函数。而每个消息processor函...
How can I change image tintColor in iOS and WatchKit
...slateCTM(context, 0, self.size.height);
CGContextScaleCTM(context, 1.0, -1.0);
CGContextSetBlendMode(context, kCGBlendModeNormal);
CGRect rect = CGRectMake(0, 0, self.size.width, self.size.height);
CGContextClipToMask(context, rect, self.CGImage);
[color1 setF...
What is the difference between quiet NaN and signaling NaN?
...2");
float div_0_0 = 0.0f / 0.0f;
float sqrt_negative = std::sqrt(-1.0f);
// Print their bytes.
std::cout << "qnan "; print_float(qnan);
std::cout << "snan "; print_float(snan);
std::cout << " inf "; print_float(inf);
std::cout << "-inf "; print_f...
How to delete a remote tag?
...n master:master
Tags work the same way:
git push origin refs/tags/release-1.0:refs/tags/release-1.0
Which can also be shortened to:
git push origin release-1.0:release-1.0
By omitting the source ref (the part before the colon), you push 'nothing' to the destination, deleting the ref on the remote...
Simple C example of doing an HTTP POST and consuming the response
... and nothing else. A sample message could be:
GET /path?query_string HTTP/1.0\r\n
\r\n
POST: What would normally be in the query string is in the body of the message instead. Because of this the header needs to include the Content-Type: and Content-Length: attributes as well as the POST command. ...