Regression tests for MSVC

appveyor.yml

@@ -3,43 +3,80 @@ version: '{build}'
 environment:
   matrix:
     - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2015
+      configuration: Debug
+      platform: x86
+      CXX_FLAGS: ""
+      LINKER_FLAGS: ""
+      GENERATOR: Visual Studio 14 2015
+
+    - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2017
+      configuration: Debug
+      platform: x86
+      CXX_FLAGS: ""
+      LINKER_FLAGS: ""
+      GENERATOR: Visual Studio 15 2017
+
+    - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2015
+      configuration: Debug
       COMPILER: mingw
       platform: x86
       CXX_FLAGS: ""
       LINKER_FLAGS: ""
       GENERATOR: Ninja
 
     - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2015
+      configuration: Release
+      COMPILER: mingw
+      platform: x86
+      CXX_FLAGS: ""
+      LINKER_FLAGS: ""
+      GENERATOR: Ninja
+
+    - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2015
+      configuration: Release
+      platform: x86
+      CXX_FLAGS: ""
+      LINKER_FLAGS: ""
+      GENERATOR: Visual Studio 14 2015
+
+    - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2015
+      configuration: Release
       platform: x86
+      name: with_win_header
       CXX_FLAGS: ""
       LINKER_FLAGS: ""
       GENERATOR: Visual Studio 14 2015
 
     - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2017
+      configuration: Release
       platform: x86
       CXX_FLAGS: ""
       LINKER_FLAGS: ""
       GENERATOR: Visual Studio 15 2017
 
     - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2017
+      configuration: Release
       platform: x86
       CXX_FLAGS: "/permissive- /std:c++latest /utf-8"
       LINKER_FLAGS: ""
       GENERATOR: Visual Studio 15 2017
 
     - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2015
+      configuration: Release
       platform: x64
       CXX_FLAGS: ""
       LINKER_FLAGS: ""
       GENERATOR: Visual Studio 14 2015 Win64
 
     - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2017
+      configuration: Release
       platform: x64
       CXX_FLAGS: ""
       LINKER_FLAGS: ""
       GENERATOR: Visual Studio 15 2017 Win64
 
     - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2017
+      configuration: Release
       platform: x64
       CXX_FLAGS: "/permissive- /std:c++latest /utf-8 /F4000000"
       LINKER_FLAGS: "/STACK:4000000"
@@ -57,10 +94,15 @@ install:
   - if "%COMPILER%"=="mingw" g++ --version
 
 before_build:
-  - cmake . -G "%GENERATOR%" -DCMAKE_CXX_FLAGS="%CXX_FLAGS%" -DCMAKE_EXE_LINKER_FLAGS="%LINKER_FLAGS%" -DCMAKE_IGNORE_PATH="C:/Program Files/Git/usr/bin"
+  # for with_win_header build, inject the inclusion of Windows.h to the single-header library
+  - ps: if ($env:name -Eq "with_win_header") { $header_path = "single_include\nlohmann\json.hpp" }
+  - ps: if ($env:name -Eq "with_win_header") { "#include <Windows.h>`n" + (Get-Content $header_path | Out-String) | Set-Content $header_path }
+  - cmake . -G "%GENERATOR%" -DCMAKE_BUILD_TYPE="%configuration%" -DCMAKE_CXX_FLAGS="%CXX_FLAGS%" -DCMAKE_EXE_LINKER_FLAGS="%LINKER_FLAGS%" -DCMAKE_IGNORE_PATH="C:/Program Files/Git/usr/bin"
 
 build_script:
-  - cmake --build . --config Release
+  - cmake --build . --config "%configuration%"
 
 test_script:
-  - ctest -C Release -V -j
+  # Set 1 hour timeout to avoid the occasional
+  # timeouts on test-unicode_all
+  - ctest --timeout 3600 -C "%configuration%" -V -j

include/nlohmann/detail/iterators/iter_impl.hpp

@@ -118,6 +118,13 @@ class iter_impl
           to iterator is not defined.
     */
 
+    /* We had to explicitly define the copy constructor for the const
+       case to circumvent a bug on msvc 2015 debug build.
+       More info: https://github.com/nlohmann/json/issues/1608
+     */
+    iter_impl(const iter_impl<const BasicJsonType>& other) noexcept
+        : m_object(other.m_object), m_it(other.m_it) {}
+
     /*!
     @brief converting constructor
     @param[in] other  non-const iterator to copy from

single_include/nlohmann/json.hpp

@@ -7821,6 +7821,13 @@ class iter_impl
           to iterator is not defined.
     */
 
+    /* We had to explicitly define the copy constructor for the const
+       case to circumvent a bug on msvc 2015 debug build.
+       More info: https://github.com/nlohmann/json/issues/1608
+     */
+    iter_impl(const iter_impl<const BasicJsonType>& other) noexcept
+        : m_object(other.m_object), m_it(other.m_it) {}
+
     /*!
     @brief converting constructor
     @param[in] other  non-const iterator to copy from

test/src/unit-concepts.cpp

@@ -73,8 +73,8 @@ TEST_CASE("concepts")
         // X::size_type must return an unsigned integer
         CHECK((std::is_unsigned<json::size_type>::value));
         // X::size_type can represent any non-negative value of X::difference_type
-        CHECK(static_cast<json::size_type>(std::numeric_limits<json::difference_type>::max()) <=
-              std::numeric_limits<json::size_type>::max());
+        CHECK(static_cast<json::size_type>((std::numeric_limits<json::difference_type>::max)()) <=
+              (std::numeric_limits<json::size_type>::max)());
 
         // the expression "X u" has the post-condition "u.empty()"
         {

test/src/unit-regression.cpp

@@ -719,7 +719,7 @@ TEST_CASE("regression tests")
         };
 
         check_roundtrip(100000000000.1236);
-        check_roundtrip(std::numeric_limits<json::number_float_t>::max());
+        check_roundtrip((std::numeric_limits<json::number_float_t>::max)());
 
         // Some more numbers which fail to roundtrip when serialized with digits10 significand digits (instead of max_digits10)
         check_roundtrip(1.541888611948064e-17);