What is the difference between a static and const variable?
Feb 7, 2010 · A constant variable has its value constant in whole of the code. For example, if you set the constant variable like " const int a=5 ", then this value for "a" will be constant in whole …
Defining static const integer members in class definition
Mar 25, 2015 · Here's chapter/verse: 9.4.2/4 - If a static data member is of const integral or const enumeration type, its declaration in the class definition can specify a constant-initializer which …
Understanding how to correctly treat c++ class constants
Apr 11, 2011 · Considering that constants can be treated in several ways (for example numeric constants are often treated using enum), what is the best approach to define a constant …
Where to declare/define class scope constants in C++?
Mar 18, 2015 · I'm curious about the benefits/detriments of different constant declaration and definition options in C++. For the longest time, I've just been declaring them at the top of the …
Difference between variables, parameters and constants
May 20, 2015 · 1 A variable is, of course, a quantity that is allowed to vary over its range of definition. For example, f(x) = 3x + 5 is a function, where x ranges over the real numbers. Now, …
Can a const variable be used to declare the size of an array in C?
The sizes of statically-bounded arrays need to be constant expressions, and unfortunately in C that's only something like a literal constant or a sizeof expression or such like, but not a const …
c++ - 'static const' vs. '#define' - Stack Overflow
Oct 28, 2009 · Is it better to use static const variables than #define preprocessor? Or does it maybe depend on the context? What are advantages/disadvantages for each method?
Variable vs Constant - Mathematics Stack Exchange
Jul 7, 2014 · In physics a constant is a specific quantity whose value is considered to be independent of time, at least within a reasonable degree of confidence and a certain time …
Define constant variables in C++ header - Stack Overflow
A program I am working on has many constants that apply throughout all classes. I want to make one header file "Constants.h", and be able to declare all the relevant constants. Then in my …
What is the difference between macro constants and constant …
In practice, the main thing that changes is scope: constant variables obey the same scoping rules as standard variables in C, meaning that they can be restricted, or possibly redefined, within a …