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std::vector performance regression when enabling C++11
...nteresting performance regression in a small C++ snippet, when I enable C++11:
1 Answer
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Java 8 stream reverse order
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For the specific question of generating a reverse IntStream, try something like this:
static In...
Efficiency of Java “Double Brace Initialization”?
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15 Answers
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Random shuffling of an array
...{
public static void main(String args[])
{
int[] solutionArray = { 1, 2, 3, 4, 5, 6, 16, 15, 14, 13, 12, 11 };
shuffleArray(solutionArray);
for (int i = 0; i < solutionArray.length; i++)
{
System.out.print(solutionArray[i] + " ");
}
System.out.println();
}
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How do I remove a property from a JavaScript object?
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Evaluate expression given as a string
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431
The eval() function evaluates an expression, but "5+5" is a string, not an expression. Use parse...
How to validate an email address in PHP
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How is this fibonacci-function memoized?
...is asked for again. If we define some list, xs=[0..] and later ask for its 100th element, xs!!99, the 100th slot in the list gets "fleshed out", holding the number 99 now, ready for next access.
That is what that trick, "going-through-a-list", is exploiting. In normal doubly-recursve Fibonacci def...
Which is a better way to check if an array has more than one element?
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11 Answers
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