Merge branch 'warnings' into 'master'

Warning fixed



See merge request !98
23 jobs for master in 74 minutes and 17 seconds (queued for 2 seconds)
Status Name Job ID Coverage
  Test
passed clang-c++11 #14080
Linux

00:22:28

passed clang-c++98 #14082
Linux

00:17:01

passed cppcheck #14085
Linux

00:00:25

passed gcc-c++11 #14079
Linux

00:07:02

passed gcc-c++98 #14081
Linux

00:03:46

passed macos-c++11 #14083
Apple

00:16:35

passed macos-c++98 #14084
Apple

00:15:23

passed VS2013-32-bit-shared-apps #14096
VS2013

00:05:34

passed VS2013-32-bit-shared-no-apps #14097
VS2013

00:03:59

passed VS2013-32-bit-static-apps #14100
VS2013

00:05:26

passed VS2013-32-bit-static-no-apps #14101
VS2013

00:05:20

passed VS2013-64-bit-shared-apps #14094
VS2013

00:05:40

passed VS2013-64-bit-shared-no-apps #14095
VS2013

00:04:26

passed VS2013-64-bit-static-apps #14098
VS2013

00:07:03

passed VS2013-64-bit-static-no-apps #14099
VS2013

00:06:03

passed VS2015-32-bit-shared-apps #14088
VS2015

00:07:37

passed VS2015-32-bit-shared-no-apps #14089
VS2015

00:04:52

passed VS2015-32-bit-static-apps #14092
VS2015

00:08:36

passed VS2015-32-bit-static-no-apps #14093
VS2015

00:06:51

passed VS2015-64-bit-shared-apps #14086
VS2015

00:07:31

passed VS2015-64-bit-shared-no-apps #14087
VS2015

00:05:39

passed VS2015-64-bit-static-apps #14090
VS2015

00:07:44

passed VS2015-64-bit-static-no-apps #14091
VS2015

00:05:37