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Why is exception handling bad?
...k invariants and leave objects in an inconsistent state. They essentially force you to remember that most every statement you make can potentially throw, and handle that correctly. Doing so can be tricky and counter-intuitive.
Consider something like this as a simple example:
class Frobber
{
...
Why does changing 0.1f to 0 slow down performance by 10x?
...me to the world of denormalized floating-point! They can wreak havoc on performance!!!
Denormal (or subnormal) numbers are kind of a hack to get some extra values very close to zero out of the floating point representation. Operations on denormalized floating-point can be tens to hundreds of times ...
Is it better to use std::memcpy() or std::copy() in terms to performance?
...memcpy as shown below or is it better to use std::copy() in terms to performance? Why?
8 Answers
...
Explain how finding cycle start node in cycle linked list work?
...
This is Floyd's algorithm for cycle detection. You are asking about the second phase of the algorithm -- once you've found a node that's part of a cycle, how does one find the start of the cycle?
In the first part of Floyd's algorithm, the hare move...
Switch statement fallthrough in C#?
Switch statement fallthrough is one of my personal major reasons for loving switch vs. if/else if constructs. An example is in order here:
...
How do I style a dropdown with only CSS?
...Support:
appearance: none has very good browser support (caniuse) - except for Internet Explorer 11 (and later) and Firefox 34 (and later).
We can improve this technique and add support for Internet Explorer 10 and Internet Explorer 11 by adding
select::-ms-expand {
display: none; /* Hide ...
How can I unit test Arduino code?
... the microcontroller hardware, or an emulator, it is absolutely impossible for such test results to tell you anything about the quality of your own work. Hence, it is far more valuable and efficient to write unit tests that do not run on the target device (or emulator).
Frequent testing on your ta...
What is the difference between canonical name, simple name and class name in Java Class?
... public static void main(final String... arguments) {
printNamesForClass(
int.class,
"int.class (primitive)");
printNamesForClass(
String.class,
"String.class (ordinary class)");
printNamesForClass(
java.util.Hash...
How do arrays in C# partially implement IList?
...an array type what interfaces it supports, it includes the generic types:
foreach (var type in typeof(int[]).GetInterfaces())
{
Console.WriteLine(type);
}
Output:
System.ICloneable
System.Collections.IList
System.Collections.ICollection
System.Collections.IEnumerable
System.Collections.IStru...
Reverse a string in Python
There is no built in reverse function for Python's str object. What is the best way of implementing this method?
28 Ans...