|
- What is the difference between initialization and assignment?
The term "initialization" has several meanings The basic meaning, from which the others are derived, is incompatible with this attempt at differentiating initialization and assignment
- What distinguishes the declaration, the definition and the . . .
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 be the first time the variable is assigned to; e g in statements like "taking the value of an uninitialized variable"
- c++ - What does initialization exactly mean? - Stack Overflow
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 (or, in C++, for a struct class type, calling an appropriate default constructor if one exists) What that translates to in terms of where variables are located in memory, or represented
- initialization - Initializing variables in C - Stack Overflow
initialization isn't strictly necessary These are just a couple of examples where it isn't strictly necessary to initialize a variable, since it's set later (but not accessed between declaration and initialization) In general though, it doesn't hurt to always initialize your variables at declaration (and indeed, this is probably best practice)
- What is the difference between instantiated and initialized?
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 instantiation need not necessarily result in a valid state for objects which is when we can say the object is uninitialzed
- struct - C++ Structure Initialization - Stack Overflow
The designated aggregate initialization, where the initialization list contains that labels of each member of the structure (see documentation) available from C++20 onward
- When to use the brace-enclosed initializer? - Stack Overflow
I think the following could be a good guideline: If the (single) value you are initializing with is intended to be the exact value of the object, use copy (=) initialization (because then in case of error, you'll never accidentally invoke an explicit constructor, which generally interprets the provided value differently) In places where copy initialization is not available, see if brace
- c - What is near-initialization? - Stack Overflow
It is near (as in, close by) the element a (there is no hyphen betyween "near" and "initialization", so the warning is near the element mentionned in the warning message; a "near-initialization" would mean that the element was almost but not quite initialised, which makes no sense)
|
|
|