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Difference between int32, int, int32_t, int8 and int8_t
I came across the data type int32_t in a C program recently. I know that it stores 32 bits, but don't int and int32 do the same?
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Structure padding and packing
...It inserts the following "gaps" into your first structure:
struct mystruct_A {
char a;
char gap_0[3]; /* inserted by compiler: for alignment of b */
int b;
char c;
char gap_1[3]; /* -"-: for alignment of the whole struct in an array */
} x;
Packing, on the other hand prevents ...
How do I abort the execution of a Python script? [duplicate]
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Prints "aa! errors!" and exits with a status code of 1.
There is also an _exit() function in the os module. The sys.exit() function raises a SystemExit exception to exit the program, so try statements and cleanup code can execute. The os._exit() version doesn't do this. It just ends the program...
Linux command or script counting duplicated lines in a text file?
...3
}
or you can use a simple one-liner:
$ cat filename | python3 -c 'print(__import__("json").dumps(__import__("collections").Counter(map(str.strip, __import__("fileinput").input())), indent=2))'
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Django - filtering on foreign key properties
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Asset.objects.filter( project__name__contains="Foo" )
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Max length UITextField
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With Swift 5 and iOS 12, try the following implementation of textField(_:shouldChangeCharactersIn:replacementString:) method that is part of the UITextFieldDelegate protocol:
func textField(_ textField: UITextField, shouldChangeCharactersIn range: NSRange, replacementString string: String) ->...
Greenlet Vs. Threads
... can i use gevent in this case to read faster import hashlib def checksum_md5(filename): md5 = hashlib.md5() with open(filename,'rb') as f: for chunk in iter(lambda: f.read(8192), b''): md5.update(chunk) return md5.digest()
– Soumya
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Calculate difference in keys contained in two Python dictionaries
...nged values
(4) keys same in both and unchanged values
"""
def __init__(self, current_dict, past_dict):
self.current_dict, self.past_dict = current_dict, past_dict
self.set_current, self.set_past = set(current_dict.keys()), set(past_dict.keys())
self.intersect = s...
how to get GET and POST variables with JQuery?
...For GET parameters, you can grab them from document.location.search:
var $_GET = {};
document.location.search.replace(/\??(?:([^=]+)=([^&]*)&?)/g, function () {
function decode(s) {
return decodeURIComponent(s.split("+").join(" "));
}
$_GET[decode(arguments[1])] = deco...
How to convert CFStringRef to NSString?
...e using ARC, the new casting syntax is as follows:
NSString *aNSString = (__bridge NSString *)aCFString;
works as well. The key thing to note is that CoreFoundation will often return objects with +1 reference counts, meaning that they need to be released (all CF[Type]Create format functions do th...