From 09e8adf54eac5159b393b9a09799663060c01db1 Mon Sep 17 00:00:00 2001 From: Anton Lundin Date: Fri, 7 Nov 2014 09:04:47 +0100 Subject: Convert volume calculations into floating point The basic problem was that for gases containing more than 2147483648 ml of nitrogen the calculations overflowed. This changes the code into using floating point math for that calculation which will be more accurate to. Signed-off-by: Anton Lundin Signed-off-by: Dirk Hohndel --- statistics.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/statistics.c b/statistics.c index 17667f899..9eb029115 100644 --- a/statistics.c +++ b/statistics.c @@ -342,8 +342,8 @@ static void get_gas_parts(struct gasmix mix, volume_t vol, int o2_in_topup, volu return; } - air.mliter = (vol.mliter * (1000 - get_he(&mix) - get_o2(&mix))) / (1000 - o2_in_topup); - he->mliter = (vol.mliter * get_he(&mix)) / 1000; + air.mliter = rint(((double)vol.mliter * (1000 - get_he(&mix) - get_o2(&mix))) / (1000 - o2_in_topup)); + he->mliter = rint(((double)vol.mliter * get_he(&mix)) / 1000.0); o2->mliter += vol.mliter - he->mliter - air.mliter; } -- cgit v1.2.3-70-g09d2