Merge branch 'iterators' into 'master'

Iterators

See merge request !65
9 jobs for master in 6 minutes and 52 seconds (queued for 1 second)
Status Job ID Name Coverage
  Test
passed #77340
VS2015
VS2015-32-bit

00:01:12

passed #77339
VS2015
VS2015-64-bit

00:01:27

passed #77338
VS2017
VS2017-32-bit

00:01:12

passed #77337
VS2015
VS2017-64-bit

00:01:26

passed #77334
Linux
clang-c++11

00:04:11

passed #77336
Linux
cppcheck

00:06:51

passed #77341
Linux
doc

00:00:24

passed #77333
Linux
gcc-c++11

00:02:17

passed #77335
Apple
macos-c++11

00:01:45