From d174187cc32db324a9127dfc1eb0d181aec37f13 Mon Sep 17 00:00:00 2001
From: Haru <haru@dotalux.com>
Date: Fri, 1 Jan 2016 01:43:46 +0100
Subject: Implemented VECTOR_TRUNCATE

- Clears a VECTOR, without freeing its data (truncates length,
  preserving capacity)

Signed-off-by: Haru <haru@dotalux.com>
---
 src/common/db.h | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'src')

diff --git a/src/common/db.h b/src/common/db.h
index d7d111c86..1c0955221 100644
--- a/src/common/db.h
+++ b/src/common/db.h
@@ -1394,6 +1394,16 @@ HPShared struct db_interface *DB;
 		VECTOR_LENGTH(_vec) -= (_n); /* decrease length */ \
 	} while(false)
 
+/**
+ * Removes all values from the vector.
+ *
+ * Does not free the allocated data.
+ */
+#define VECTOR_TRUNCATE(_vec) \
+	do { \
+		VECTOR_LENGTH(_vec) = 0; \
+	} while (false)
+
 /**
  * Clears the vector, freeing allocated data.
  *
-- 
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