Why can lambdas be better optimized by the compiler than plain functions?
In his book The C++ Standard Library (Second Edition) Nicolai Josuttis states that lambdas can be better optimized by the compiler than plain … Read more
optimization
Detect If Browser Tab Has Focus
Is there a reliable cross-browser way to detect that a tab has focus. The scenario is that we have an application that polls … Read more
What optimizations can GHC be expected to perform reliably?
GHC has a lot of optimizations that it can perform, but I don’t know what they all are, nor how likely they are … Read more
What is the effect of ordering if…else if statements by probability?
Specifically, if I have a series of if…else if statements, and I somehow know beforehand the relative probability that each statement will evaluate … Read more
Java Reflection Performance
Does creating an object using reflection rather than calling the class constructor result in any significant performance differences? 14 Answers 14
Is it better to use std::memcpy() or std::copy() in terms to performance?
Is it better to use memcpy as shown below or is it better to use std::copy() in terms to performance? Why? char *bits … Read more
Why is early return slower than else?
This is a follow-up question to an answer I gave a few days back. Edit: it seems that the OP of that question … Read more
Can’t move jQuery to footer
Below two methods did not help me. My jQuery is always on the head section. What can be the reason? Method 1: (adding … Read more
What is the difference between Unary Plus/Number(x) and parseFloat(x)?
I’m asking this just for the sake of shaving a few bytes. I know I can use +x (unary plus) instead of Number(x). … Read more
Measuring execution time of a function in C++
I want to find out how much time a certain function takes in my C++ program to execute on Linux. Afterwards, I want … Read more