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Where is the itoa function in Linux?
...e sprintf(target_string,"%d",source_int) or (better yet, because it's safe from buffer overflows) snprintf(target_string, size_of_target_string_in_bytes, "%d", source_int). I know it's not quite as concise or cool as itoa(), but at least you can Write Once, Run Everywhere (tm) ;-)
Here's the old (...
C++ lambda with captures as a function pointer
...statefulness) is to provide some type of global variable which is accessed from your lambda/function. For example, you could make a traditional functor object and give it a static member function which refers to some unique (global/static) instance.
But that's sort of defeating the entire purpose o...
Why is typeof null “object”?
...
From the MDN page about the behaviour of the typeof operator:
null
// This stands since the beginning of JavaScript
typeof null === 'object';
In the first implementation of JavaScript, JavaScript values were represented ...
What is the difference between .*? and .* regular expressions?
... Can you explain or show an example of how the greedy ? differs from the non-greedy ?? ?
– AdrianHHH
Nov 25 '15 at 15:36
4
...
Django - what is the difference between render(), render_to_response() and direct_to_template()?
...will automatically use RequestContext that I will most definitely be using from now on.
2020 EDIT: It should be noted that render_to_response() was removed in Django 3.0
https://docs.djangoproject.com/en/1.8/topics/http/shortcuts/#render-to-response
render_to_response(template[, dictionary][, c...
Lambda function in list comprehensions
...ion.
I don't think the purpose of the OP was to generate a list of squares from 0 to 9. If that was the case, we could give even more solutions:
squares = []
for x in range(10): squares.append(x*x)
this is the good ol' way of imperative syntax.
But it's not the point. The point is W(hy)TF is this...
How to generate random SHA1 hash to use as ID in node.js?
...nter by 1 million, we get the probability of the length of number returned from Math.random.
len frequency(%)
------------------
13 0.0004
14 0.0066
15 0.0654
16 0.6768
17 6.6703
18 61.133 <- highest probability
19 28.089 <- second highest probability
20 ...
Is it better to use C void arguments “void foo(void)” or not “void foo()”? [duplicate]
...ite functions like printf, and I wanted to discourage that right away. Far from suggesting that () is the way to do varargs, I'm saying that it best to avoid varargs altogether.
– Daniel Earwicker
Jul 22 '09 at 11:52
...
Why is this inline-block element pushed downward?
...set in your question (that misalignment is due to increase of border width from 1px to 5px so if adjust negative left you'll see there is no issue)
Now remove additional characters I added to aid in
understanding. (and of course remove negative left)
Finally reduce body width because we no longer ne...
Check if a class has a member function of a given signature
...ou may exploit SFINAE to detect function presence at compile-time. Example from my code (tests if class has member function size_t used_memory() const).
template<typename T>
struct HasUsedMemoryMethod
{
template<typename U, size_t (U::*)() const> struct SFINAE {};
template<ty...