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authorRomain Forlot <romain.forlot@iot.bzh>2017-04-27 00:44:17 +0200
committerRomain Forlot <romain.forlot@iot.bzh>2017-04-27 01:03:34 +0200
commit512336b68da052f167bdfb8f2b9a9992ed3f1688 (patch)
tree431fed79301eb870def3022759cfaf34aa276da1 /CAN-binder/low-can-binding/can
parentaa5c3cf6f9ab1e1f26559745bb64534f68a6f80a (diff)
Don't use heavy weapon to get some basic calculation
Change-Id: Ibc820dea7efbc2d7a50671ce66804217c6707d56 Signed-off-by: Romain Forlot <romain.forlot@iot.bzh>
Diffstat (limited to 'CAN-binder/low-can-binding/can')
-rw-r--r--CAN-binder/low-can-binding/can/can-bus-dev.cpp3
1 files changed, 1 insertions, 2 deletions
diff --git a/CAN-binder/low-can-binding/can/can-bus-dev.cpp b/CAN-binder/low-can-binding/can/can-bus-dev.cpp
index 4737d113..7f7a7624 100644
--- a/CAN-binder/low-can-binding/can/can-bus-dev.cpp
+++ b/CAN-binder/low-can-binding/can/can-bus-dev.cpp
@@ -21,7 +21,6 @@
#include <unistd.h>
#include <linux/can/raw.h>
#include <linux/can/bcm.h>
-#include <cmath>
#include "can-bus.hpp"
#include "can-message.hpp"
@@ -132,7 +131,7 @@ int can_bus_dev_t::create_rx_filter(const can_signal_t& s)
memset(&cfd, 0, sizeof(cfd));
memset(&bcm_msg.msg_head, 0, sizeof(bcm_msg.msg_head));
uint8_t bit_size = s.get_bit_size();
- float val = (float)exp2(bit_size)-1;
+ float val = (float)(1 << bit_size)-1;
bcm_msg.msg_head.opcode = RX_SETUP;
bcm_msg.msg_head.can_id = can_id;