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Best practices for circular shift (rotate) operations in C++
...ed it to rotate by the width of the type (using fixed-width types like uint32_t).
#include <stdint.h> // for uint32_t
#include <limits.h> // for CHAR_BIT
// #define NDEBUG
#include <assert.h>
static inline uint32_t rotl32 (uint32_t n, unsigned int c)
{
const unsigned int ma...
What does enctype='multipart/form-data' mean?
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1637
When you make a POST request, you have to encode the data that forms the body of the request in...
Explanation of the UML arrows
...s:
UML Class Diagrams: Reference: https://msdn.microsoft.com/library/dd409437%28VS.140%29.aspx
5: Association: A relationship between the members of two classifiers.
5a: Aggregation: An association representing a shared ownership relationship. The
Aggregation property of the owner role is set to S...
Selecting all text in HTML text input when clicked
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934
You can use this javascript snippet:
<input onClick="this.select();" value="Sample Text" /&...
Two divs, one fixed width, the other, the rest
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edited May 23 '17 at 12:26
Community♦
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answered Jun 26 '11 at 22:38
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Legality of COW std::string implementation in C++11
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answered Aug 30 '12 at 15:06
Dave SDave S
18.1k33 gold badges4343 silver badges6464 bronze badges
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Are foreign keys really necessary in a database design?
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103
Foreign keys help enforce referential integrity at the data level. They also improve performance...
Obstructed folders in Subversion
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113
it occurs when you have deleted or moved the .svn subdirectories (without going through SVN comm...
UILabel with text of two different colors
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223
The way to do it is to use NSAttributedString like this:
NSMutableAttributedString *text =
[[...
Clicking a button within a form causes page refresh
...
If you have a look at the W3C specification, it would seem like the obvious thing to try is to mark your button elements with type='button' when you don't want them to submit.
The thing to note in particular is where it says
A button element with...