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- Dictionarybetter/ˈbɛtə/
adjective
- 1. more desirable, satisfactory, or effective: "we're hoping for better weather tomorrow" Similar Opposite
- 2. partly or fully recovered from illness, injury, or mental stress: "his leg was getting better" Similar Opposite
adverb
- 1. more excellently or effectively: "Jonathon could do better if he tried" Similar
noun
- 1. the better one; that which is better: "the Natural History Museum book is by far the better of the two"
- 2. one's superiors in social class or ability: dated, humorous "I'm not one to speak ill of my betters"
verb
- 1. improve on or surpass (an existing or previous level or achievement): "his account can hardly be bettered" Similar
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Oct 28, 2009 · Two special cases (1) static const is preferred within a class scope for class specific constants; (2) namespace or anonymous scope const is preferred over #define. I prefer Enums. Because it is hybrid of both. Doesn't occupy space unless you create a variable of it.
The difference is that #define is processed by the preprocessor doing what amounts to simple text replacement. Const values defined like this are not visible for the actual compiler, while a variable defined with the const modifier is an actual typed "variable" (well not really that variable). The disadvantage of #define is that is replaces ...
Nov 4, 2009 · 811. It depends on what you need the value for. You (and everyone else so far) omitted the third alternative: static const int var = 5; #define var 5. enum { var = 5 }; Ignoring issues about the choice of name, then: If you need to pass a pointer around, you must use (1). Since (2) is apparently an option, you don't need to pass pointers around.
Feb 12, 2021 · 2. #define directives create macro substitution, while constexpr variables are special type of variables. They literally have nothing in common beside the fact that before constexpr (or even const) variables were available, macros were sometimes used when currently constexpr variable can be used.
Dec 22, 2009 · 17. Constants allow you to specify a datatype, which is (usually) an advantage. Macros are much more flexible, and therefore can get you into much more trouble if you're not careful. Best practice is to use constants as much as possible, and use #define only when you really need a macro, not just a named literal value.
Jun 14, 2010 · #define is a preprocessor command, enum is in the C or C++ language. It is always better to use enums over #define for this kind of cases. One thing is type safety. Another one is that when you have a sequence of values you only have to give the beginning of the sequence in the enum, the other values get consecutive values.
Jun 9, 2020 · I'm learning programming in C and I have a question of what is better when I declare an array. My teacher told me that it is better to use a variable that contains the value of the size like this: #include <stdio.h> #include <stdlib.h> int main (){ int size = 10; int array [size]; return 0; }
Jun 29, 2010 · #define ignores scoping, but allows you to use better typing facilities: lets you choose the constant type (either by using suffixes or by including an explicit cast into the definition). So, choose for yourself what is more important to you. For a state machine, enum might be a better choice, unless you have a good reason to control the type.
Dec 29, 2013 · enum is compile time constant with debug info with no storage allocation. const is allocated with a storage, depending on whether it is optimised away by the compiler with constant propagation. #define has no storage allocation. edited Sep 2, 2013 at 11:24. nhahtdh.
Aug 24, 2010 · Macros (created with #define) are always replaced as written, and can have double-evaluation problems. inline on the other hand, is purely advisory - the compiler is free to ignore it. Under the C99 standard, an inline function can also have external linkage, creating a function definition which can be linked against.
