even more C++98 compatibility

23 jobs for midpoint-subdivision in 40 minutes and 28 seconds (queued for 1 second)
Status Job ID Name Coverage
  Test
passed #21726
VS2013
VS2013-32-bit-shared-apps

00:04:34

passed #21727
VS2013
VS2013-32-bit-shared-no-apps

00:03:37

passed #21730
VS2013
VS2013-32-bit-static-apps

00:04:34

passed #21731
VS2013
VS2013-32-bit-static-no-apps

00:03:45

passed #21724
VS2013
VS2013-64-bit-shared-apps

00:05:20

passed #21725
VS2013
VS2013-64-bit-shared-no-apps

00:03:44

passed #21728
VS2013
VS2013-64-bit-static-apps

00:05:20

passed #21729
VS2013
VS2013-64-bit-static-no-apps

00:03:56

passed #21718
VS2015
VS2015-32-bit-shared-apps

00:06:18

passed #21719
VS2015
VS2015-32-bit-shared-no-apps

00:04:33

passed #21722
VS2015
VS2015-32-bit-static-apps

00:05:40

passed #21723
VS2015
VS2015-32-bit-static-no-apps

00:04:55

passed #21716
VS2015
VS2015-64-bit-shared-apps

00:06:27

passed #21717
VS2015
VS2015-64-bit-shared-no-apps

00:05:28

passed #21720
VS2015
VS2015-64-bit-static-apps

00:06:21

passed #21721
VS2015
VS2015-64-bit-static-no-apps

00:05:39

passed #21710
Linux
clang-c++11

00:21:35

passed #21712
Linux
clang-c++98

00:17:13

passed #21715
Linux
cppcheck

00:00:24

passed #21709
Linux
gcc-c++11

00:04:54

passed #21711
Linux
gcc-c++98

00:04:05

passed #21713
Apple
macos-c++11

00:09:34

passed #21714
Apple
macos-c++98

00:08:56