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What is your favorite C programming trick? [closed]
... "normals.txt"
};
(more or less, I don't have the code handy to check it now).
Since then, a new world of creative use of the preprocessor opened in front of my eyes. I no longer include just headers, but entire chunks of code now and then (it improves reusability a lot) :-p
Thanks John Carmack!...
Python dictionary from an object's fields
Do you know if there is a built-in function to build a dictionary from an arbitrary object? I'd like to do something like this:
...
How do I uniquely identify computers visiting my web site?
... code snippet. This document does not show how to implement it. I want to know how do I implement this so I can track unique users for my site.
– Oliver
Jul 27 '17 at 8:16
12
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What is the difference between _tmain() and main() in C++?
...s are passed to the main function, which interprets them as char strings.
Now, in UTF-16, the character set used by Windows when Unicode is enabled, all the ASCII characters are represented as the pair of bytes \0 followed by the ASCII value.
And since the x86 CPU is little-endian, the order of th...
How do I show the value of a #define at compile-time?
...
I know that this is a long time after the original query, but this may still be useful.
This can be done in GCC using the stringify operator "#", but it requires two stages.
#define XSTR(x) STR(x)
#define STR(x) #x
The value...
Can “using” with more than one resource cause a resource leak?
...
@user1306322 why? What if I really want to know?
– Oxymoron
Jan 15 '14 at 3:51
...
How to make a chain of function decorators?
... #Python's functions are objects
Functions references
Okay, still here? Now the fun part...
You’ve seen that functions are objects. Therefore, functions:
can be assigned to a variable
can be defined in another function
That means that a function can return another function.
def getTalk(ki...
What does pylint's “Too few public methods” message mean
...ough if a class seems like the best choice, use it. pylint doesn't always know what's best.
Do note that namedtuple is immutable and the values assigned on instantiation cannot be modified later.
share
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When should iteritems() be used instead of items()?
....items() returned a list of (key, value) pairs. In Python 3.x, .items() is now an itemview object, which behaves different - so it has to be iterated over, or materialised... So, list(dict.items()) is required for what was dict.items() in Python 2.x.
Python 2.7 also has a bit of a back-port for key...
Trouble comparing time with RSpec
...sides of your expectation
expect(@article.updated_at.utc.to_s).to eq(Time.now.to_s)
or
expect(@article.updated_at.utc.to_i).to eq(Time.now.to_i)
Refer to this for more information about why the times are different
shar...