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Why use bzero over memset?
...et (with three arguments). Almost
every vendor that supports the sockets API also provides bzero, and
if not, we provide a macro definition in our unp.h header.
Indeed, the author of TCPv3 [TCP/IP Illustrated, Volume 3 - Stevens 1996] made the mistake of swapping the second
and third argu...
Java 理论与实践: 线程池与工作队列 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...。清单 1 显示了简单的合用工作队列的示例。尽管 Thread API 没有对使用 Runnable 接口强加特殊要求，但使用 Runnable 对象队列的这种模式是调度程序和工作队列的公共约定。
清单 1. 具有线程池的工作队列
public class WorkQueue
{
...
Reading an image file into bitmap from sdcard, why am I getting a NullPointerException?
...
The MediaStore API is probably throwing away the alpha channel (i.e. decoding to RGB565). If you have a file path, just use BitmapFactory directly, but tell it to use a format that preserves alpha:
BitmapFactory.Options options = new Bitma...
Rounding a double to turn it into an int (java)
...use a String in the constructor
// http://java.sun.com/j2se/1.5.0/docs/api/java/math/BigDecimal.html#BigDecimal(double)
BigDecimal bd = new BigDecimal(Double.toString(d));
bd = bd.setScale(decimalPlace,BigDecimal.ROUND_HALF_UP);
return bd.doubleValue();
}
}
...
Strip HTML from Text JavaScript
...of Javascript. Therefore we didn't add bulk, we took advantage of existing API code...
– Mark
Mar 14 '12 at 16:31
35
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How to get the selected radio button’s value?
...lector() is a pure javascript answer: developer.mozilla.org/en-US/docs/Web/API/document.querySelector
– AdamJonR
Feb 9 '15 at 6:05
...
Difference between IsNullOrEmpty and IsNullOrWhiteSpace in C# [duplicate]
...s, you probably never used before
https://docs.microsoft.com/en-us/dotnet/api/system.char.iswhitespace
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Algorithm to detect intersection of two rectangles?
...ou call the method DoesThisRectSelectMe passing the selectedArea rect. The API convertRect: will do that job. The same trick works when you click on the NSView to select it. In that case simply override the hitTest method as below. The API convertPoint: will do that job ;-)
- (BOOL)DoesThisRectSele...
Why is “while ( !feof (file) )” always wrong?
... input or output was encountered. This is true for essentially all the I/O APIs, whether it be the C standard library, C++ iostreams, or other libraries. As long as the I/O operations succeed, you simply cannot know whether further, future operations will succeed. You must always first try the opera...
Generate a UUID on iOS from Swift
...
You could also just use the NSUUID API:
let uuid = NSUUID()
If you want to get the string value back out, you can use uuid.UUIDString.
Note that NSUUID is available from iOS 6 and up.
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