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-rw-r--r--src/internals.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/internals.h b/src/internals.h
index 77ea29b..5b1f9c3 100644
--- a/src/internals.h
+++ b/src/internals.h
@@ -62,7 +62,8 @@ extern int libzahl_set_up;
#define zmemcmp(a, b, n) memcmp(a, b, (n) * sizeof(zahl_char_t))
#define SET_SIGNUM(a, signum) ((a)->sign = (signum))
-#define SET(a, b) do { if (a != b) zset(a, b); } while (0)
+#define SET(a, b) do { if ((a) != (b)) zset(a, b); } while (0)
+#define ENSURE_SIZE(a, n) do { if ((a)->alloced < (n)) zahl_realloc(a, (n)); } while (0)
#define MIN(a, b) ((a) < (b) ? (a) : (b))
#define MAX(a, b) ((a) > (b) ? (a) : (b))