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Combining C++ and C - how does #ifdef __cplusplus work?
...m working on a project that has a lot of legacy C code. We've started writing in C++, with the intent to eventually convert the legacy code, as well. I'm a little confused about how the C and C++ interact. I understand that by wrapping the C code with extern "C" the C++ compiler will not ...
How can I time a code segment for testing performance with Pythons timeit?
I've a python script which works just as it should, but I need to write the execution time. I've googled that I should use timeit but I can't seem to get it to work.
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Assignment inside lambda expression in Python
...ts assignment inside of lambda expressions. This operator can only appear within a parenthesized (...), bracketed [...], or braced {...} expression for syntactic reasons. For example, we will be able to write the following:
import sys
say_hello = lambda: (
message := "Hello world",
sys.stdo...
Mongoose populate after save
...ably too late an answer to help you, but I was stuck on this recently, and it might be useful for others.
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How to call a Parent Class's method from Child Class in Python?
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Yes, but only with new-style classes. Use the super() function:
class Foo(Bar):
def baz(self, arg):
return super().baz(arg)
For python < 3, use:
class Foo(Bar):
def baz(self, arg):
return super(Foo, self).baz...
Is there any difference between “foo is None” and “foo == None”?
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is always returns True if it compares the same object instance
Whereas == is ultimately determined by the __eq__() method
i.e.
>>> class Foo(object):
def __eq__(self, other):
return True
>>> f = Foo()
>>&...
What's the common practice for enums in Python? [duplicate]
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edited Mar 31 '09 at 20:39
answered Mar 31 '09 at 20:30
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PHP “php://input” vs $_POST
...cted to use the method php://input instead of $_POST when interacting with Ajax requests from JQuery. What I do not understand is the benefits of using this vs the global method of $_POST or $_GET .
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Can I use Objective-C blocks as properties?
Is it possible to have blocks as properties using the standard property syntax?
8 Answers
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Command-line Unix ASCII-based charting / plotting tool
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Try gnuplot. It has very powerful graphing possibilities.
It can output to your terminal in the following way:
gnuplot> set terminal dumb
Terminal type set to 'dumb'
Options are 'feed 79 24'
gnuplot> plot sin(x)
1 ++----------...