Merge branch 'feature/detect_unsupported_compilers' into develop
- added error macros to exclude unsupported compilers
diff --git a/src/json.hpp b/src/json.hpp
index bf3c479..4d5e9dd 100644
--- a/src/json.hpp
+++ b/src/json.hpp
@@ -54,6 +54,19 @@
#include <utility>
#include <vector>
+// exclude unsupported compilers
+#if defined(__clang__)
+ #define CLANG_VERSION (__clang_major__ * 10000 + __clang_minor__ * 100 + __clang_patchlevel__)
+ #if CLANG_VERSION < 30400
+ #error "unsupported Clang version - see https://github.com/nlohmann/json#supported-compilers"
+ #endif
+#elif defined(__GNUC__)
+ #define GCC_VERSION (__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__)
+ #if GCC_VERSION < 40900
+ #error "unsupported GCC version - see https://github.com/nlohmann/json#supported-compilers"
+ #endif
+#endif
+
// disable float-equal warnings on GCC/clang
#if defined(__clang__) || defined(__GNUC__) || defined(__GNUG__)
#pragma GCC diagnostic push
diff --git a/src/json.hpp.re2c b/src/json.hpp.re2c
index 91c6563..7441e29 100644
--- a/src/json.hpp.re2c
+++ b/src/json.hpp.re2c
@@ -54,6 +54,19 @@
#include <utility>
#include <vector>
+// exclude unsupported compilers
+#if defined(__clang__)
+ #define CLANG_VERSION (__clang_major__ * 10000 + __clang_minor__ * 100 + __clang_patchlevel__)
+ #if CLANG_VERSION < 30400
+ #error "unsupported Clang version - see https://github.com/nlohmann/json#supported-compilers"
+ #endif
+#elif defined(__GNUC__)
+ #define GCC_VERSION (__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__)
+ #if GCC_VERSION < 40900
+ #error "unsupported GCC version - see https://github.com/nlohmann/json#supported-compilers"
+ #endif
+#endif
+
// disable float-equal warnings on GCC/clang
#if defined(__clang__) || defined(__GNUC__) || defined(__GNUG__)
#pragma GCC diagnostic push
