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Diffstat (limited to '')
| -rw-r--r-- | lib/ldb/include/ldb.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/lib/ldb/include/ldb.h b/lib/ldb/include/ldb.h index 5d83a27..98859d4 100644 --- a/lib/ldb/include/ldb.h +++ b/lib/ldb/include/ldb.h @@ -2326,6 +2326,22 @@ do { \ } while (0) #endif +#ifndef NUMERIC_CMP +/* + * NUMERIC_CMP is a safe replacement for `a - b` in comparison + * functions. It will work on integers, pointers, and floats. + * + * Rather than + * + * return a - b; + * + * use + * + * return NUMERIC_CMP(a, b); + */ +#define NUMERIC_CMP(a, b) (((a) > (b)) - ((a) < (b))) +#endif + /** |