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Q&A

Posts tagged macros

Use for programming languages macros (as opposed to application macros like VBA ones). A macro is a rule or pattern that specifies how a certain input sequence (string) should be mapped to an output sequence (string).

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Q&A How to write a macro that discards the const qualifier, for any type?

How to write a macro that discards the const qualifier, for any type? I hope some combination of typeof and a cast will do, but haven't found the combination. I tried this, without luck: #define...

2 answers  ·  posted 6mo ago by alx‭  ·  last activity 30d ago by alx‭

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Q&A What is do { } while(0) in macros and should we use it?

Background I can see the need to use {} when implementing a function-like macro such as this one: #define HCF(code) fprintf(stderr, "halt and catch fire"); exit(code); Because if we use the fo...

2 answers  ·  posted 2y ago by Lundin‭  ·  last activity 2y ago by Pete W‭

Question c code-style macros