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Python serialization - Why pickle?
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What are the most interesting equivalences arising from the Curry-Howard Isomorphism?
...me upon the Curry-Howard Isomorphism relatively late in my programming life, and perhaps this contributes to my being utterly fascinated by it. It implies that for every programming concept there exists a precise analogue in formal logic, and vice versa. Here's a "basic" list of such analogies, of...
Convert float to double without losing precision
I have a primitive float and I need as a primitive double. Simply casting the float to double gives me weird extra precision. For example:
...
iOS 7 - How to display a date picker in place in a table view?
...o the table view.
The action method of the UIDatePicker will directly set the NSDate property of the custom table cell. In addition, this sample shows how to use NSDateFormatter class to achieve the custom cell's date-formatted appearance.
You can download the sample code here: DateCell.
...
Cannot kill Python script with Ctrl-C
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Rounded UIView using CALayers - only some corners - How?
...xtClosePath(context);
CGContextRestoreGState(context);
}
-(UIImage *)setImage
{
UIImage *img = [UIImage imageNamed:@"my_image.png"];
int w = img.size.width;
int h = img.size.height;
CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB();
CGContextRef context = CGBitmap...
How to make a SIMPLE C++ Makefile
...ol must be rebuilt.
The commands associated with each dependency line are set off with a tab (see below) should modify the target (or at least touch it to update the modification time).
Variables, Built In Rules, and Other Goodies
At this point, our makefile is simply remembering the work that ne...
[完整源码实例] 修改 CListCtrl 的标题栏字体颜色；重绘 CListCtrl 标题栏 ...
...置标题栏字体的话，无需自绘CHeaderCtrl，部分代码如下：CFont *f = new CFont; f->CreateFont(13, nHeight ...如果只需设置标题栏字体的话，无需自绘CHeaderCtrl，部分代码如下：
CFont *f = new CFont;
f->CreateFont(13, // nHeight
...
Send POST Request with Data Specified in File via Curl
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Using String Format to show decimal up to 2 places or simple integer
I have got a price field to display which sometimes can be either 100 or 100.99 or 100.9, What I want is to display the price in 2 decimal places only if the decimals are entered for that price , for instance if its 100 so it should only show 100 not 100.00 and if the price is 100.2 it should displa...