c++ - What does 'initialization' exactly mean? - Stack Overflow
Nov 11, 2019 · All definitions are declarations in C and C++, and a definition of a variable may optionally include an initialiser. If no initialiser is provided for a global/static, then the default is zero-initialisation …
What distinguishes the declaration, the definition and the ...
Apr 28, 2014 · Initialization includes things like the zero initialization of variables with static lifetime, and default constructors, as well as what you show. (And to add to the confusion: in C, initialization can …
What is the difference between initialization and assignment?
30 What is the difference between initialization and assignment? I was confused by the following statement: C++ provides another way of initializing member variables that allows us to initialize …
Declaring vs Initializing a variable? - Stack Overflow
Jul 30, 2015 · Initialization: When you declare a variable it is automatically initialized, which means memory is allocated for the variable by the JavaScript engine. Assignment: This is when a specific …
How to initialize a struct in accordance with C programming language ...
The biggest difference to standard initialization is that you don't have to declare the elements in a fixed order and you can also omit element. From The GNU Guide: Standard C90 requires the elements of …
C++ - initializing variables in header vs with constructor
Feb 9, 2015 · The first form is more convenient if you have more than one constructor (and want them all to initialise the member in the same way), or if you don't otherwise need to write a constructor. …
What is the difference between "instantiated" and "initialized"?
Feb 25, 2010 · The class/type will have the initialization logic, whereas the instantiation logic is typically carried out by the new keyword (basically memory allocation, reference copying etc). But …
When to use the brace-enclosed initializer? - Stack Overflow
Apr 2, 2012 · Curly brace initialization does not allow narrowing conversions. So round and curly braces are not interchangeable. But knowing where they differ allows me to use curly over round bracket …
When should we use parenthesis ( ) vs. initializer { } syntax to ...
Updated I have gone through links (such as When to use the brace-enclosed initializer?) on when should I use use {} brace initialization, but information is not given on when we should use parenth...
C++: Where to initialize variables in constructor - Stack Overflow
In short, always prefer initialization lists when possible. 2 reasons: If you do not mention a variable in a class's initialization list, the constructor will default initialize it before entering the body of the …