made property handle constructors explicit

9 jobs for <span class="ref-name">fix_cppchecks</span> in 9 minutes and 7 seconds (queued for 3 seconds)
Status Job ID Name Coverage
  Test
passed #23738
VS2013
VS2013-32-bit

00:00:51

passed #23737
VS2013
VS2013-64-bit

00:00:56

passed #23736
VS2015
VS2015-32-bit

00:01:04

passed #23735
VS2015
VS2015-64-bit

00:01:10

passed #23732
Linux
clang-c++11

00:03:20

failed #23734
Linux
cppcheck

00:00:43

passed #23739
Linux
doc

00:00:08

passed #23731
Linux
gcc-c++11

00:03:37

passed #23733
Apple
macos-c++11

00:01:26

 
Name Stage Failure
failed
cppcheck Test There is an unknown failure, please try again

==============================================================================
CPPCHECK Summary
==============================================================================


Total CPPCHECK error Count is 5, which is too High! CPPCHECK Run failed

ERROR: Build failed: exit status 1