expression « macro « C Q&A

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C Q&A » macro » expression

1. ISO C equivalent of braced-groups within expressions stackoverflow.com

How can I do the following in a compliant (ISO C99) way?

#define MALLOC(type, length, message) ({                ...

2. left-hand operand of comma expression has no effect (C macro) stackoverflow.com

I get the warning: left-hand operand of comma expression has no effect This occurs when the macro below is invoked:

#define MAX(a,b) ((a) < (b) ? (b) : (a))

I can't see anything wrong ...

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