Merge branch 'Fix_warnings-GF' into 'master'

Fix warnings gf

See merge request !20
8 jobs for test in 6 minutes and 40 seconds
Status Job ID Name Coverage
  Test
passed #24392
Qt551 VS2013
CoMISo-VS2013-Qt-5.5.1-x64

00:01:31

passed #24387
Linux
clang-c++11

00:06:40

failed #24389
Linux
clang-c++98

00:00:16

passed #24386
Linux
gcc-c++11

00:06:35

passed #24388
Linux
gcc-c++98

00:06:22

passed #24390
Apple
macos-c++11

00:02:21

passed #24391
Apple
macos-c++98

00:02:14

 
  Deploy
skipped #24393
trigger_build
 
Name Stage Failure
failed
clang-c++98 Test There is an unknown failure, please try again
fatal error: too many errors emitted, stopping now [-ferror-limit=]
20 errors generated.
CMakeFiles/CoMISo.dir/build.make:302: recipe for target 'CMakeFiles/CoMISo.dir/Solver/CholmodSolver.cc.o' failed
make[2]: *** [CMakeFiles/CoMISo.dir/Solver/CholmodSolver.cc.o] Error 1
CMakeFiles/Makefile2:99: recipe for target 'CMakeFiles/CoMISo.dir/all' failed
make[1]: *** [CMakeFiles/CoMISo.dir/all] Error 2
Makefile:127: recipe for target 'all' failed
make: *** [all] Error 2
ERROR: Build failed: exit status 1