summaryrefslogtreecommitdiffstats
path: root/ewah/bitmap.c
diff options
context:
space:
mode:
Diffstat (limited to 'ewah/bitmap.c')
-rw-r--r--ewah/bitmap.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/ewah/bitmap.c b/ewah/bitmap.c
index 7b525b1..ac7e0af 100644
--- a/ewah/bitmap.c
+++ b/ewah/bitmap.c
@@ -169,6 +169,15 @@ size_t bitmap_popcount(struct bitmap *self)
return count;
}
+int bitmap_is_empty(struct bitmap *self)
+{
+ size_t i;
+ for (i = 0; i < self->word_alloc; i++)
+ if (self->words[i])
+ return 0;
+ return 1;
+}
+
int bitmap_equals(struct bitmap *self, struct bitmap *other)
{
struct bitmap *big, *small;