C++: What are the differences between const and macro?
An example of an AI chatbot conversation about C++ const and macro differences.
What are the main differences between const and macro in C++?
In C++, 'const' is a type qualifier that defines a constant variable, while 'macro' is a preprocessor directive that defines a constant value or code snippet.
Can you give me an example of how to use const?
Sure! You can declare a constant integer like this: 'const int maxSize = 100;'. This means maxSize cannot be changed.
And how would I use a macro instead?
You can define a macro using '#define', like this: '#define MAX_SIZE 100'. This replaces MAX_SIZE with 100 during preprocessing.
What are the advantages of using const over macros?
Using 'const' provides type safety and scope, while macros can lead to unexpected behavior due to their text substitution nature.
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