X-Git-Url: http://git.madism.org/?a=blobdiff_plain;f=common%2Farray.h;h=4a5b88dc89728dcb75420f4cb7d0d4bda7ebac90;hb=7fa8c1bc673add68529fa2bda8134be5089e8745;hp=6f5217d6693e0318021e6876553d4a5a15762bfa;hpb=f47b916bf7581b0070431eb70f43710e4c79fc98;p=apps%2Fpfixtools.git

diff --git a/common/array.h b/common/array.h
index 6f5217d..4a5b88d 100644
--- a/common/array.h
+++ b/common/array.h
@@ -138,12 +138,19 @@
         array_ensure_can_edit(array);                                          \
         p_allocgrow(&(array).data, (goal), &(array).size);                     \
     }
-#define array_adjust(array)                                                    \
+#define array_shrink(array, cap)                                               \
     do {                                                                       \
         array_ensure_can_edit(array);                                          \
-        p_shrink(&(array).data, (array).len, &(array).size);                   \
+        if ((cap) < (array).size && (array).size != (array).len) {             \
+            p_shrink(&(array).data, MAX((array).len, (cap)), &(array).size);   \
+        }                                                                      \
     } while (0)
+#define array_adjust(array) array_shrink(array, 0)
+
 #define array_elt(array, n) ((array).data[(n)])
+#define array_last(array) array_elt(array, (array).len - 1)
+#define array_pop_last(array) array_elt(array, --((array).len))
+
 #define array_ptr(array, n) ((array).data + (n))
 
 #define foreach(var, array)                                                    \