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- Dictionaryinstead/ɪnˈstɛd/
adverb
- 1. as an alternative or substitute: "do not use lotions, but put on a clean dressing instead"
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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.
Mar 28, 2018 · So if you used a variable instead of a #define, you had no guarantee that somebody somewhere wouldn't change the value of it, causing havoc throughout your program. In the old days, FORTRAN passed even constants to subroutines by reference, and it was possible (and headache inducing) to change the value of a constant like '2' to be something different.
Mar 4, 2017 · For example: #define SCALE 1. ... scaled_x = x * SCALE; When SCALE is defined as 1 the compiler can eliminate the multiplication as it knows that x * 1 == x, but if SCALE is an (extern) const, it will need to generate code to fetch the value and perform the multiplication because the value will not be known until the linking stage. (extern is ...
5. #define isn't inherently bad, it's just easy to abuse. For something like a version string it works fine, although a const char* would be better, but many programmers use it for much more than that. Using #define as a typedef for example is silly when, in most cases, a typedef would be better. So there's nothing wrong with #define statements ...
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. But both have wide area of applications which ...
Jan 19, 2024 · Define a constant instead of duplicating this literal "Queuing workflow message with ID {} and shardId ...
Nov 3, 2009 · 2. No. typedef is a C keyword that creates an alias for a type. #define is a pre-processor instruction, that creates a text replacement event prior to compilation. When the compiler gets to the code, the original "#defined" word is no longer there. #define is mostly used for macros and global constants.
May 23, 2023 · Define a constant instead of duplicating this literal "required" 5 times. This means that sonar wants you to avoid repeating the string literal "required" multiple times in your code, and instead define a constant in one place and reuse this constant wherever you need the literal. So it's recommending something like this. public const REQUIRED ...
Aug 9, 2016 · The code quality is asking you to define your own exception instead of using a pre-defined java exception class. So you should declare a new class (like ReplaceStringLengthException ) inherited from RuntimeException , or you can throw any exception derived from RuntimeException.
Jan 17, 2013 · 1. Also, for this question, you should differentiate between C or C++. C++ would always prefer static const, or const to #define. C++ will only use the preprocessor when it is absolutely necessary. C on the other hand will use the preprocessor more, so an example is needed to give a "correct" answer. – Josh Petitt.
