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How to write iOS app purely in C
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Damn, it took me a while but I got it:
main.c:
#include <CoreFoundation/CoreFoundation.h>
#include <objc/runtime.h>
#include <objc/message.h>
// This is a hack. Because we are writing in C, we cannot out and i...
Unix's 'ls' sort by name
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edited Apr 1 '19 at 14:51
answered May 18 '09 at 15:19
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warning: implicit declaration of function
... /* ... */
}
You need to declare your function before main, like this, either directly or in a header:
int fun(int x, char *p);
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Reference: What is variable scope, which variables are accessible from where and what are “undefined
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What is "variable scope"?
Variables have a limited "scope", or "places from which they are accessible". Just because you wrote $foo = 'bar'; once somewhere in your application doesn't mean you can refer to $foo from everywhere else inside the application. The variable $f...
Iterate an iterator by chunks (of n) in Python? [duplicate]
Can you think of a nice way (maybe with itertools) to split an iterator into chunks of given size?
9 Answers
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Useful code which uses reduce()? [closed]
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The other uses I've found for it besides + and * were with and and or, but now we have any and all to replace those cases.
foldl and foldr do come up in Scheme a lot...
Here's some cute usages:
Flatten a list
Goal: turn [[1, 2, 3], [4, 5], [6, 7, 8]...
Which $_SERVER variables are safe?
...ols and you need to be aware of where a value comes from and hence whether it can be trusted for a certain purpose. $_SERVER['HTTP_FOOBAR'] for example is entirely safe to store in a database, but I most certainly wouldn't eval it.
As such, let's divide those values into three categories:
Server c...
How do I find out what keystore my JVM is using?
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Your keystore will be in your JAVA_HOME---> JRE -->lib---> security--> cacerts. You need to check where your JAVA_HOME is configured, possibly one of these places,
Computer--->Advanced --> Environment variables---> JAVA_HOME
Your server startup batch files.
In your impor...
Determine if 2 lists have the same elements, regardless of order? [duplicate]
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You can simply check whether the multisets with the elements of x and y are equal:
import collections
collections.Counter(x) == collections.Counter(y)
This requires the elements to be hashable; runtime will be in O(n), where n is the size of the lists.
If the eleme...
How to execute a Python script from the Django shell?
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edited Jun 22 '17 at 8:00
Jonathan
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