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    SubjectRe: [PATCH] Documentation: Explain a second alternative for multi-line macros.
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    >> In this case, the second form
    >> should be used when the macro needs to return a value (and you can't
    >> use an inline function for whatever reason), whereas the first form
    >> should be used at all other times.
    >
    > that's a fair point, although it's certainly not the coding style
    > that's in play now. for example,
    >
    > #define setcc(cc) ({ \
    > partial_status &= ~(SW_C0|SW_C1|SW_C2|SW_C3); \
    > partial_status |= (cc) & (SW_C0|SW_C1|SW_C2|SW_C3); })

    This _does_ return a value though, bad example.


    Segher

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