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How are virtual functions and vtable implemented?
...ect(*(void **)x,8,PROT_READ|PROT_WRITE|PROT_EXEC);
// Or VirtualProtect on win32; this part's very OS-specific
(*(int (***)(A *)x)[0] = f3;
// Now C::f1() returns 0 (remember we made x into a C above)
// so x->f1() and z->f1() both return 0
The latter is rather likely to make virus-checkers ...
Always pass weak reference of self into block in ARC?
...t I am not quite sure what happens in blocks, so that confuses me a little bit
– the_critic
Nov 17 '13 at 13:16
In the...
Load multiple packages at once
...that is useful and exported starts with p_. Plus we tend to use library a bit and that's an additional 7 characters. 7 characters x ~1000000 life time uses of the function x .5 seconds per character = 3500000 seconds. That's 58333.33 minutes, 972.2222 hours or 40.50926 days of a programmer's life...
Efficient evaluation of a function at every cell of a NumPy array
...n (for calculating the data offset) at each iteration. Plus it works for arbitrarily dimensioned arrays. Might be slower on very small arrays, tho.
– blubberdiblub
Oct 9 '11 at 8:13
...
How to Execute SQL Server Stored Procedure in SQL Developer?
...tmentAddOrEdit]
@Id int,
@Code varchar(100),
@Name varchar(100),
@IsActive bit ,
@LocationId int,
@CreatedBy int,
@UpdatedBy int
AS
IF(@Id = 0)
BEGIN
INSERT INTO Department (Code,Name,IsActive,LocationId,CreatedBy,UpdatedBy,CreatedAt)
VALUES(@Code,@Name,@IsActive,@LocationId,@Cr...
Rails I18n validation deprecation warning
...o :en).
The new version of the I18n gem, forces developers to be a little bit more conscious of the locale management.
In the future, the behavior will change and if a locale is invalid, the Rails app will raise an error.
In preparation of such change (that may potentially break several applicat...
How can I find where I will be redirected using cURL?
...the phrase Location: in their content... (which zillow currently does).
A bit sloppy, but a couple quick edits to make this a bit smarter are:
function getOriginalURL($url) {
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_HEADER, true);
curl_setopt...
CSS 3 slide-in from left transition
... left: 0;
}
In this case, Im just transitioning the position from left: -100px; to 0; with a 1s. duration. It's also possible to move the element using transform: translate();
CSS animation
Demo Two
#slide {
position: absolute;
left: -100px;
width: 100px;
height: 100px;
bac...
Gradle, “sourceCompatibility” vs “targetCompatibility”?
...tools/… ?
– Brian Agnew
Feb 11 at 10:09
add a comment
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Use of ~ (tilde) in R programming Language
... Thanks for the answer @Ari B. Friedman but the last line is a bit ambiguous where you say 'dot means "all variables not yet used"'. If you could illustrate it further.
– Ankita
Feb 20 '13 at 12:14
...