From: Jeff King <peff@xxxxxxxx>
We have a function to bitwise-OR an ewah into an uncompressed bitmap,
but not to OR two uncompressed bitmaps. Let's add it.
Interestingly, we have a public header declaration going back to
e1273106f6 (ewah: compressed bitmap implementation, 2013-11-14), but the
function was never implemented. That was all OK since there were no
users of 'bitmap_or()', but a first caller will be added in a couple of
patches.
Signed-off-by: Jeff King <peff@xxxxxxxx>
Signed-off-by: Taylor Blau <me@xxxxxxxxxxxx>
---
ewah/bitmap.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/ewah/bitmap.c b/ewah/bitmap.c
index 6f9e5c529b..0a3502603f 100644
--- a/ewah/bitmap.c
+++ b/ewah/bitmap.c
@@ -122,6 +122,15 @@ void bitmap_and_not(struct bitmap *self, struct bitmap *other)
self->words[i] &= ~other->words[i];
}
+void bitmap_or(struct bitmap *self, const struct bitmap *other)
+{
+ size_t i;
+
+ bitmap_grow(self, other->word_alloc);
+ for (i = 0; i < other->word_alloc; i++)
+ self->words[i] |= other->words[i];
+}
+
void bitmap_or_ewah(struct bitmap *self, struct ewah_bitmap *other)
{
size_t original_size = self->word_alloc;
--
2.29.2.533.g07db1f5344
