On Sun, 13 Jun 2010, Gabor Kovesdan wrote:
+/*
+ * Utility macros.
+ */
+#define DPCPU_SUM(n, var, sum)
\
+do {
\
+ (sum) = 0; \
+ u_int i; \
+ CPU_FOREACH(i) \
+ (sum) += (DPCPU_ID_PTR(i, n))->var; \
+} while (0)
I'd suggest first swapping variable declaration and '(sum) = 0;'.
Also using 'i' as a counter in macro can easly lead to name collision.
If you need to do it, I'd suggest '_i' or something.
Maybe it would be better to make it an inline function rather than macro?
And why using old BSD-stlye u_int? style(9) also suggest using ISO C types.
That is for fixed-width types (uintN_t instead of u_intN_t). KNF still uses
the abbreviation u_int for `unsigned' or worse `unsigned int', except where
namespace issues prevent use of u_nt.
Bruce
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