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Truly understanding the difference between procedural and functional
.... It is not referentially transparent. In comparison, the std::max(a,b) in C++ will always return the same result given the same arguments, and has no side-effects (that I know of...).
– Andy Thomas
Mar 7 '11 at 22:50
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Simple Digit Recognition OCR in OpenCV-Python
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For those who interested in C++ code can refer below code.
Thanks Abid Rahman for the nice explanation.
The procedure is same as above but, the contour finding uses only first hierarchy level contour, so that the algorithm uses only outer contour fo...
Is it better to use C void arguments “void foo(void)” or not “void foo()”? [duplicate]
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That is the correct way to say "no parameters" in C, and it also works in C++.
But:
void foo();
Means different things in C and C++! In C it means "could take any number of parameters of unknown types", and in C++ it means the same as foo(void).
Variable argument list functions are inherently ...
Is there a replacement for unistd.h for Windows (Visual C)?
...y simple console program written for Unix to the Windows platform ( Visual C++ 8.0 ). All the source files include "unistd.h", which doesn't exist. Removing it, I get complaints about misssing prototypes for 'srandom', 'random', and 'getopt'.
I know I can replace the random functions, and I'm prett...
Is it safe to get values from a java.util.HashMap from multiple threads (no modification)?
... operations are really internally read-only in the thread-safety sense. In C++ standard library for example, there is a blanket rule that member function marked const are truly read-only in such a sense (internally, they may still perform writes, but these will have to be made thread-safe). There is...
What is the logic behind the “using” keyword in C++?
What is the logic behind the "using" keyword in C++?
1 Answer
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Is there any way to put malicious code into a regular expression?
...x who wrote the "Regular Expression" page has also released code! re2 is a C++ library which guarantees O(length_of_regex) runtime and configurable memory-use limit. It's used within Google so that you can type a regex into google code search -- meaning that it's been battle tested.
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How to create the most compact mapping n → isprime(n) up to a limit N?
... n%(i+2) == 0)
return false;
return true;
}
this is just c++ implementation of above AKS algorithm
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Determine a string's encoding in C#
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It came from a non-Unicode C++ app.. The CodeProject article seems a bit too complex, however it seems to do what I want to do.. Thanks..
– krebstar
Jun 22 '09 at 3:47
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To ARC or not to ARC? What are the pros and cons? [closed]
...urs the penalties discussed below:
ARC will not leak memory during ObjC or C++ exception throws in ObjC++ code, but this is at the cost of both time and space performance. This is yet another in a long list of reasons to minimize your use of ObjC++.
ARC will not work at all on iPhoneOS 3 or Mac OS X...