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Algorithm to compare two images
...a. However, one algorithm may find all the matches, but also have a large 20% false positive rate, so there are several ways to rate your algorithms.
The test data should attempt to be designed to cover as many types of dynamics as possible that you would expect to find in the real world.
It is i...
Expanding a parent to the height of its children
...
If it's only on Webkit then it only 20% exist :P Cheers for the link, never seen this website before. Is it well maintained and updated? Do you swear by it?
– pilau
Apr 2 '13 at 21:46
...
Removing whitespace from strings in Java
... and st.replaceAll("\\s","") produce the same result.
The second regex is 20% faster than the first one, but as the number consecutive spaces increases, the first one performs better than the second one.
Assign the value to a variable, if not used directly:
st = st.replaceAll("\\s+","")
...
jQuery hasClass() - check for more than one class
...t ran this in jsperf for Chrome 21.0.1180 and the is() method is now about 20% faster. But the hasClass() seems more readable.
– Danyal Aytekin
Sep 27 '12 at 12:27
3
...
Programmatically Lighten or Darken a hex color (or rgb, and blend colors)
...se steps over percentage because it's more intuitive for me.
For example, 20% of a 200 blue value is much different than 20% of a 40 blue value.
Anyways, here's my modification, thanks for your original function.
function adjustBrightness(col, amt) {
var usePound = false;
if (col[0] == ...
How to convert numbers between hexadecimal and decimal
...ode that illustrates that idea. My performance tests showed that it can be 20%-40% faster than Convert.ToInt32(...):
class TableConvert
{
static sbyte[] unhex_table =
{ -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1
,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1
,-1,-...
VS Addin插件配置、部署 - C/C++ - 清泛网 - 专注C/C++及内核技术
...置的路径是工程bin目录下dll的绝对路径，这样便于开发者调试。实际部署最好使用相对路径，然后把dll拷到Addins目录下。
工程目录下也有一个接口文件，里面的路径是相对路径，实际部署可以把这个文件和dll文件一起拷到VS...
VS2012警告未能加载包“Visual C++ package” - C/C++ - 清泛网 - 专注C/C++及内核技术
...
安装过程如图：
安装完后可以打开项目了，不过发现调试F5不能用了，是灰色的，重新启动下VS2012即可恢复正常。
VS2012 C++
c++ 写日志通用类，可设置日志级别 - C/C++ - 清泛网 - 专注C/C++及内核技术
... LOGGER_LEVEL_NAME[] = {"崩溃", "错误", "警告", "信息", "详细", "调试"};
static const char * const LOGGER_LEVEL_CODE[] = {"FATAL", "ERROR", "WARN ", "INFO ", "VERBOSE", "DEBUG"};
#define logging(nLevel, x, ...) \
Log(nLevel, __FUNCTION__, __LINE__, (x), __VA_ARGS__)
#define LOG...
小端模式 和 大端模式的决定因素 - C/C++ - 清泛网 - 专注C/C++及内核技术
...很早以前也是这么认为的，但是经过一系列的跨平台代码调试后，发现同一台PC上Windows和Linux的端序是相同的，不得不引发重新考虑：
小端模式 和 大端模式：几乎是由CPU决定的，而非OS或编译器。Java内存序及网络序均是大端。...