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Least common multiple for 3 or more numbers
...
Some Python code that doesn't require a function for gcd:
from sys import argv
def lcm(x,y):
tmp=x
while (tmp%y)!=0:
tmp+=x
return tmp
def lcmm(*args):
return reduce(lcm,args)
args=map(int,argv[1:])
print lcmm(*args)
Here's what it looks like in the ter...
Android phone orientation overview including compass
...stem changes when you rotate the device. Thus, when the device is rotated from its default view mode, the sensor coordinate system is no longer the same as the screen coordinate system. The rotation matrix in this case is used to transform A to C (B always remains fixed).
Here's a code snippet to...
performSelector may cause a leak because its selector is unknown
...round. Here's how:
if (!_controller) { return; }
SEL selector = NSSelectorFromString(@"someMethod");
IMP imp = [_controller methodForSelector:selector];
void (*func)(id, SEL) = (void *)imp;
func(_controller, selector);
Or more tersely (though hard to read & without the guard):
SEL selector =...
How do I add a submodule to a sub-directory?
...hs given to the submodule command, dropping the requirement that it be run from the top-level of the repository.
Since the interpretation of a relative submodule URL depends on whether or not "remote.origin.url" is configured, explicitly block relative URLs in "git submodule add" when not at th...
How to pipe list of files returned by find command to cat to view all the files
...ys the contents of all those files) and basically need to grep something from these files.
15 Answers
...
How do I get list of methods in a Python class?
...le (listing the methods of the optparse.OptionParser class):
>>> from optparse import OptionParser
>>> import inspect
#python2
>>> inspect.getmembers(OptionParser, predicate=inspect.ismethod)
[([('__init__', <unbound method OptionParser.__init__>),
...
('add_option...
Remove characters from NSString?
...
Taken from NSString
stringByReplacingOccurrencesOfString:withString:
Returns a new string in which all occurrences of a target string in the receiver are replaced by another given string.
- (NSString *)stringByReplacingOccurren...
Batch files: How to read a file?
How you can read a file (text or binary) from a batch file? There is a way to read it in a binary mode or text mode?
7 Answ...
Get property value from string using reflection
I am trying implement the Data transformation using Reflection 1 example in my code.
22 Answers
...
STL or Qt containers?
... using std::(w)string and the STL containers exclusively and converting to/from the Qt equivalents, but I have already switched to QString and I find that I'm using Qt's containers more and more.
When it comes to strings, QString offers much more complete functionality compared to std::basic_string...