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Does using “new” on a struct allocate it on the heap or stack?
When you create an instance of a class with the new operator, memory gets allocated on the heap. When you create an instance of a struct with the new operator where does the memory get allocated, on the heap or on the stack ?
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Best practices for exception management in Java or C# [closed]
...It seems odd to me that you want to catch exceptions and turn them into error codes. Why do you think the caller would prefer error codes over exceptions when the latter is the default in both Java and C#?
As for your questions:
You should only catch exceptions that you can actually handle. Just...
Bash ignoring error for a particular command
...ever printed.
Also, I want to add that when pipefail is on,
it is enough for shell to think that the entire pipe has non-zero exit code
when one of commands in the pipe has non-zero exit code (with pipefail off it must the last one).
$ set -o pipefail
$ false | true ; echo $?
1
$ set +o pipefail
$...
Ruby's ||= (or equals) in JavaScript?
I love Ruby's ||= mechanism. If a variable doesn't exist or is nil , then create it and set it equal to something:
6 Ans...
Should I return EXIT_SUCCESS or 0 from main()?
...g conflicting answers: should the main routine of a C++ program return 0 or EXIT_SUCCESS ?
8 Answers
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Non-static variable cannot be referenced from a static context
...et, you know immediately that it's a car even if you can't see which model or type. This is because you compare what you see with the class "car". The class contains which is similar to all cars. Think of it as a template or an idea.
At the same time, the car you see is an instance of the class "ca...
C++ performance vs. Java/C#
...stracts away the native architecture. Logically it would seem impossible for Java or C# to match the speed of C++ because of this intermediate step, however I've been told that the latest compilers ("hot spot") can attain this speed or even exceed it.
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How to get the type of T from a member of a generic class or method?
Let say I have a generic member in a class or method, so:
16 Answers
16
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How to explain dependency injection to a 5-year-old? [closed]
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I give you dependency injection for five-year-olds.
When you go and get things out of the refrigerator for yourself, you can cause problems. You might leave the door open, you might get something Mommy or Daddy doesn't want you to have. You might even be l...
How can I check for “undefined” in JavaScript? [duplicate]
...ariable has been declared regardless of its value, then using the in operator is the safest way to go. Consider this example:
// global scope
var theFu; // theFu has been declared, but its value is undefined
typeof theFu; // "undefined"
But this may not be the intended result for some cases, sinc...