🚧 started working on #397

src/json.hpp

@@ -282,6 +282,64 @@ class basic_json
         return allocator_type();
     }
 
+    /*!
+    @brief returns version information on the library
+    */
+    static basic_json version()
+    {
+        basic_json result;
+
+        result["copyright"] = "(C) 2013-2016 Niels Lohmann";
+        result["name"] = "JSON for Modern C++";
+        result["url"] = "https://github.com/nlohmann/json";
+        result["version"] =
+        {
+            {"string", "2.0.10"},
+            {"major", 2},
+            {"minor", 0},
+            {"patch", 10},
+        };
+
+#ifdef _WIN32
+        result["platform"] = "win32";
+#elif defined __linux__
+        result["platform"] = "linux";
+#elif defined __APPLE__
+        result["platform"] = "apple";
+#elif defined __unix__
+        result["platform"] = "unix";
+#else
+        result["platform"] = "unknown";
+#endif
+
+#if defined(__clang__)
+        result["compiler"] = {{"family", "clang"}, {"version", CLANG_VERSION}};
+#elif defined(__ICC) || defined(__INTEL_COMPILER)
+        result["compiler"] = {{"family", "icc"}, {"version", __INTEL_COMPILER}};
+#elif defined(__GNUC__) || defined(__GNUG__)
+        result["compiler"] = {{"family", "gcc"}, {"version", GCC_VERSION}};
+#elif defined(__HP_cc) || defined(__HP_aCC)
+        result["compiler"] = "hp"
+#elif defined(__IBMCPP__)
+        result["compiler"] = {{"family", "ilecpp"}, {"version", __IBMCPP__}};
+#elif defined(_MSC_VER)
+        result["compiler"] = {{"family", "msvc"}, {"version", _MSC_VER}};
+#elif defined(__PGI)
+        result["compiler"] = {{"family", "pgcpp"}, {"version", __PGI}};
+#elif defined(__SUNPRO_CC)
+        result["compiler"] = {{"family", "sunpro"}, {"version", __SUNPRO_CC}};
+#else
+        result["compiler"] = {{"family", "unknown"}, {"version", "unknown"}};
+#endif
+
+#ifdef __cplusplus
+        result["compiler"]["c++"] = std::to_string(__cplusplus);
+#else
+        result["compiler"]["c++"] = "unknown";
+#endif
+        return result;
+    }
+
 
     ///////////////////////////
     // JSON value data types //
@@ -882,7 +940,8 @@ class basic_json
                 {
                     if (t == value_t::null)
                     {
-                        throw std::domain_error("961c151d2e87f2686a955a9be24d316f1362bf21");
+                        // echo "JSON for Modern C++" | sha1sum
+                        throw std::domain_error("961c151d2e87f2686a955a9be24d316f1362bf21 2.0.10");
                     }
                     break;
                 }

src/json.hpp.re2c

@@ -282,6 +282,64 @@ class basic_json
         return allocator_type();
     }
 
+    /*!
+    @brief returns version information on the library
+    */
+    static basic_json version()
+    {
+        basic_json result;
+
+        result["copyright"] = "(C) 2013-2016 Niels Lohmann";
+        result["name"] = "JSON for Modern C++";
+        result["url"] = "https://github.com/nlohmann/json";
+        result["version"] =
+        {
+            {"string", "2.0.10"},
+            {"major", 2},
+            {"minor", 0},
+            {"patch", 10},
+        };
+
+#ifdef _WIN32
+        result["platform"] = "win32";
+#elif defined __linux__
+        result["platform"] = "linux";
+#elif defined __APPLE__
+        result["platform"] = "apple";
+#elif defined __unix__
+        result["platform"] = "unix";
+#else
+        result["platform"] = "unknown";
+#endif
+
+#if defined(__clang__)
+        result["compiler"] = {{"family", "clang"}, {"version", CLANG_VERSION}};
+#elif defined(__ICC) || defined(__INTEL_COMPILER)
+        result["compiler"] = {{"family", "icc"}, {"version", __INTEL_COMPILER}};
+#elif defined(__GNUC__) || defined(__GNUG__)
+        result["compiler"] = {{"family", "gcc"}, {"version", GCC_VERSION}};
+#elif defined(__HP_cc) || defined(__HP_aCC)
+        result["compiler"] = "hp"
+#elif defined(__IBMCPP__)
+        result["compiler"] = {{"family", "ilecpp"}, {"version", __IBMCPP__}};
+#elif defined(_MSC_VER)
+        result["compiler"] = {{"family", "msvc"}, {"version", _MSC_VER}};
+#elif defined(__PGI)
+        result["compiler"] = {{"family", "pgcpp"}, {"version", __PGI}};
+#elif defined(__SUNPRO_CC)
+        result["compiler"] = {{"family", "sunpro"}, {"version", __SUNPRO_CC}};
+#else
+        result["compiler"] = {{"family", "unknown"}, {"version", "unknown"}};
+#endif
+
+#ifdef __cplusplus
+        result["compiler"]["c++"] = std::to_string(__cplusplus);
+#else
+        result["compiler"]["c++"] = "unknown";
+#endif
+        return result;
+    }
+
 
     ///////////////////////////
     // JSON value data types //
@@ -882,7 +940,8 @@ class basic_json
                 {
                     if (t == value_t::null)
                     {
-                        throw std::domain_error("961c151d2e87f2686a955a9be24d316f1362bf21");
+                        // echo "JSON for Modern C++" | sha1sum
+                        throw std::domain_error("961c151d2e87f2686a955a9be24d316f1362bf21 2.0.10");
                     }
                     break;
                 }

test/CMakeLists.txt

@@ -35,6 +35,7 @@ add_executable(${JSON_UNITTEST_TARGET_NAME}
     "src/unit-serialization.cpp"
     "src/unit-testsuites.cpp"
     "src/unit-unicode.cpp"
+    "src/unit-version.cpp"
 )
 
 set_target_properties(${JSON_UNITTEST_TARGET_NAME} PROPERTIES

test/Makefile

@@ -37,8 +37,9 @@ SOURCES = src/unit.cpp \
           src/unit-reference_access.cpp \
           src/unit-regression.cpp \
           src/unit-serialization.cpp \
+          src/unit-testsuites.cpp \
           src/unit-unicode.cpp \
-          src/unit-testsuites.cpp
+          src/unit-version.cpp
 
 OBJECTS = $(SOURCES:.cpp=.o)
 

test/src/unit-version.cpp

+/*
+    __ _____ _____ _____
+ __|  |   __|     |   | |  JSON for Modern C++ (test suite)
+|  |  |__   |  |  | | | |  version 2.0.9
+|_____|_____|_____|_|___|  https://github.com/nlohmann/json
+
+Licensed under the MIT License <http://opensource.org/licenses/MIT>.
+Copyright (c) 2013-2016 Niels Lohmann <http://nlohmann.me>.
+
+Permission is hereby  granted, free of charge, to any  person obtaining a copy
+of this software and associated  documentation files (the "Software"), to deal
+in the Software  without restriction, including without  limitation the rights
+to  use, copy,  modify, merge,  publish, distribute,  sublicense, and/or  sell
+copies  of  the Software,  and  to  permit persons  to  whom  the Software  is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE  IS PROVIDED "AS  IS", WITHOUT WARRANTY  OF ANY KIND,  EXPRESS OR
+IMPLIED,  INCLUDING BUT  NOT  LIMITED TO  THE  WARRANTIES OF  MERCHANTABILITY,
+FITNESS FOR  A PARTICULAR PURPOSE AND  NONINFRINGEMENT. IN NO EVENT  SHALL THE
+AUTHORS  OR COPYRIGHT  HOLDERS  BE  LIABLE FOR  ANY  CLAIM,  DAMAGES OR  OTHER
+LIABILITY, WHETHER IN AN ACTION OF  CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE  OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+*/
+
+#include "catch.hpp"
+
+#include "json.hpp"
+using nlohmann::json;
+
+TEST_CASE("version information")
+{
+    SECTION("version()")
+    {
+        CHECK(json::version()["name"] == "JSON for Modern C++");
+    }
+}