
What is the difference between "instantiated" and "initialized"?
To initialize means assigning an initial state to the object before it is used. This initialization can be part of the instantiation process, in that case values are explicitly assigned to object attributes …
Proper way to initialize C++ structs - Stack Overflow
Jan 21, 2017 · The new syntax with () should value-initialize the object, assuming it is POD. Is it possible that some subpart of your struct isn't actually POD and that's preventing the expected …
How to initialize array to 0 in C? - Stack Overflow
May 10, 2016 · How to initialize array to 0 in C? Asked 15 years, 2 months ago Modified 3 years, 7 months ago Viewed 526k times
Declaring vs Initializing a variable? - Stack Overflow
Jul 30, 2015 · The only difference is that the var statement will initialize any declared variables without a value to undefined. In both examples, you are declaring a variable.
c++ - What does 'initialization' exactly mean? - Stack Overflow
Nov 11, 2019 · To sum up, if the implementation cannot constant initialize it, then it must first zero initialize and then initialize it before any dynamic initialization happends.
How to directly initialize a HashMap (in a literal way)?
How to directly initialize a HashMap (in a literal way)? Asked 13 years, 10 months ago Modified 3 months ago Viewed 2.1m times
c++ - Initializing an array of zeroes - Stack Overflow
Aug 11, 2016 · Yes, according to the rule of aggregate initialization, it's guaranteed (that all elements of array C will be value-initialized, i.e. zero-initialized to 0 in this case). (emphasis …
Java: define terms initialization, declaration and assignment
assignment: throwing away the old value of a variable and replacing it with a new one initialization: it's a special kind of assignment: the first. Before initialization objects have null …
C# member variable initialization; best practice? - Stack Overflow
May 27, 2015 · This has two implications: first, any field initialization code is duplicated in each constructor and, second, any code you include in your constructors to initialize fields to …
Creating an empty Pandas DataFrame, and then filling it
I'd like to iteratively fill the DataFrame with values in a time series kind of calculation. I'd like to initialize the DataFrame with columns A, B, and timestamp rows, all 0 or all NaN. I'd then add …