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What is array to pointer decay?
...mbers = 0x5a5aff23. More importantly the term decay signifies loss of type and dimension; numbers decay into int* by losing the dimension information (count 5) and the type is not int [5] any more. Look here for cases where the decay doesn't happen.
If you're passing an array by value, what you're ...
Resolve build errors due to circular dependency amongst classes
...t this is to "think like a compiler".
Imagine you are writing a compiler. And you see code like this.
// file: A.h
class A {
B _b;
};
// file: B.h
class B {
A _a;
};
// file main.cc
#include "A.h"
#include "B.h"
int main(...) {
A a;
}
When you are compiling the .cc file (remember that th...
Preventing scroll bars from being hidden for MacOS trackpad users in WebKit/Blink
...-scrollbar pseudo-elements [blog]. You can disable the default appearance and behaviour by setting -webkit-appearance [docs] to none.
Because you're removing the default style, you'll also need to specify the style yourself or the scroll bar will never show up. The following CSS recreates the app...
What's a good way to overwrite DateTime.Now during testing?
... in providing the clock to the class that relies on it, but that could be handled by any number of dependency injection solutions (using an Inversion of Control container, plain old constructor/setter injection, or even a Static Gateway Pattern).
Other mechanisms of delivering an object or method t...
How do I give text or an image a transparent background using CSS?
...r: rgba(255, 0, 0, 0.5);
Here's an article from css3.info, Opacity, RGBA and compromise (2007-06-03).
<p style="background-color: rgba(255, 0, 0, 0.5);">
<span>Hello, World!</span>
</p>
...
How to check Oracle database for long running queries
...
from v$sqltext_with_newlines t,V$SESSION s
where t.address =s.sql_address
and t.hash_value = s.sql_hash_value
and s.status = 'ACTIVE'
and s.username <> 'SYSTEM'
order by s.sid,t.piece
/
This shows locks. Sometimes things are going slow, but it's because it is blocked waiting for a lock:
s...
Proper way to handle multiple forms on one page in Django
...
4) Add a hidden field identifying the form and check the value of this field in your view.
– Soviut
Jun 14 '11 at 3:40
...
Android Paint: .measureText() vs .getTextBounds()
...g Paint.getTextBounds() , since I'm interested in getting both the height and width of the text to be rendered. However, the actual text rendered is always a bit wider than the .width() of the Rect information filled by getTextBounds() .
...
Convert file path to a file URI?
...
The System.Uri constructor has the ability to parse full file paths and turn them into URI style paths. So you can just do the following:
var uri = new System.Uri("c:\\foo");
var converted = uri.AbsoluteUri;
share
...
How to split a string in Java
... *, the plus sign +, the opening parenthesis (, the closing parenthesis ), and the opening square bracket [, the opening curly brace {, These special characters are often called "metacharacters".
So, if you want to split on e.g. period/dot . which means "any character" in regex, use either backsla...