commit 31d65711d695498929d9f6f4bd396ca4188de814
author Hans Johnson <hans-johnson@uiowa.edu> Fri Jan 11 14:13:08 2019 -0600
committer Hans Johnson <hans.j.johnson@gmail.com> Mon Jan 14 16:27:52 2019 -0600
tree 903ce10268d0d0acdf1250505da36f670b902aa8
parent 2853b1cdacece137194abc5dc55e9ccbf23534f9

ENH: Remove conditionals for unsupported VS compilers

Visual Studio 12 (2013) with _MSC_VER=1800 is the oldest supported
compiler with sufficient C++11 capabilities

See:
https://blogs.msdn.microsoft.com/vcblog/2013/12/02/c1114-core-language-features-in-vs-2013-and-the-nov-2013-ctp/
for details related to language features supported.

doc/doxyfile.in

diff --git a/doc/doxyfile.in b/doc/doxyfile.in
index baf04c1..dcf514e 100644
--- a/doc/doxyfile.in
+++ b/doc/doxyfile.in
@@ -1944,7 +1944,7 @@
 # recursively expanded use the := operator instead of the = operator.
 # This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
 
-PREDEFINED             = "_MSC_VER=1400" \
+PREDEFINED             = "_MSC_VER=1800" \
                          _CPPRTTI \
                          _WIN32 \
                          JSONCPP_DOC_EXCLUDE_IMPLEMENTATION