Use "rint()" instead of rounding manually with "+ 0.5"

rint() is "round to nearest integer", and does a better job than +0.5
(followed by the implicit truncation inherent in integer casting).  We
already used 'rint()' for values that could be negative (where +0.5 is
actively wrong), let's just make it consistent.

Of course, as is usual for the messy C math functions, it depends on the
current rounding mode.  But the default round-to-nearest is what we want
and use, and the functions that explicitly always round to nearest
aren't standard enough to worry about.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/dive.c b/dive.c
index 455b1288c..edcb130f4 100644
--- a/dive.c
+++ b/dive.c
@@ -549,7 +549,7 @@ static void sanitize_cylinder_type(cylinder_type_t *type)
 		volume_of_air = cuft_to_l(type->size.mliter);
 		/* milliliters at 1 atm: "true size" */
 		volume = volume_of_air / surface_volume_multiplier(type->workingpressure);
-		type->size.mliter = volume + 0.5;
+		type->size.mliter = rint(volume);
 	}
 
 	/* Ok, we have both size and pressure: try to match a description */