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Why is it impossible to build a compiler that can determine if a C++ function will change the value
... if (bar() == 0) this->a = 1;
}
How can a compiler determine, just from looking at that code, whether foo will ever change a? Whether it does or doesn't depends on conditions external to the function, namely the implementation of bar. There's more than that to the proof that the halting prob...
What is the difference between an ordered and a sorted collection?
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If SortedSet has inherited from Set and is having a is-a relationship with it then how can u say Set is without any order
– xpioneer
May 17 '19 at 7:21
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What is the closest thing Windows has to fork()?
... an issue.
Otherwise you can take a look at how Cygwin implements fork(). From a quite old Cygwin's architecture doc:
5.6. Process Creation
The fork call in Cygwin is particularly interesting
because it does not map well on top of
the Win32 API. This makes it very
difficult to implemen...
Python, compute list difference
...n l2]
diff_lamb_filter = lambda l1,l2: filter(lambda x: x not in l2, l1)
from difflib import SequenceMatcher
def squeezer(a, b):
squeeze = SequenceMatcher(None, a, b)
return reduce(lambda p,q: p+q, map(
lambda t: squeeze.a[t[1]:t[2]],
filter(lambda x:x[0]!='equal',
squeeze.ge...
Maven Could not resolve dependencies, artifacts could not be resolved
This is supposed to be a working project from my friend. He demonstrated the project right in front of me, and then I copied the project, imported it as an existing maven project (I'm using m2eclipse plugin).
...
Co-variant array conversion from x to y may cause run-time exception
...nd runtime/compile time difference as in your example but isn't conversion from special type to base type legal? Moreover I have typed list and I am going from LinkLabel (specialized type) to Control (base type).
– TheVillageIdiot
Jan 2 '12 at 19:16
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Generate random numbers following a normal distribution in C/C++
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There are many methods to generate Gaussian-distributed numbers from a regular RNG.
The Box-Muller transform is commonly used. It correctly produces values with a normal distribution. The math is easy. You generate two (uniform) random numbers, and by applying an formula to them, you ...
Bootstrap 3 and Youtube in Modal
I'm trying to use the Modal feature from Bootstrap 3 to show my Youtube video. It works, but I can't click on any buttons in the Youtube video.
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How to split a dos path into its components in Python
...tead of '\\' or '/', as this makes it system independent.
To remove colon from the drive letter (although I don't see any reason why you would want to do that), you can write:
path_list[0] = path_list[0][0]
share
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How can I load storyboard programmatically from class?
...ton on the new view, and there is now a memory leak with that discarded vc from the prior incantations of this code.
– SWoo
Feb 6 '14 at 19:48
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