Merge pull request #2347 from nlohmann/no_exceptions

Fix code to work without exceptions

.github/workflows/ubuntu.yml

@@ -4,7 +4,6 @@ on: [push, pull_request]
 
 jobs:
   build:
-
     runs-on: ubuntu-latest
 
     steps:

include/nlohmann/ordered_map.hpp

@@ -5,6 +5,8 @@
 #include <utility> // pair
 #include <vector> // vector
 
+#include <nlohmann/detail/macro_scope.hpp>
+
 namespace nlohmann
 {
 
@@ -64,7 +66,7 @@ template <class Key, class T, class IgnoredLess = std::less<Key>,
             }
         }
 
-        throw std::out_of_range("key not found");
+        JSON_THROW(std::out_of_range("key not found"));
     }
 
     const T& at(const Key& key) const
@@ -77,7 +79,7 @@ template <class Key, class T, class IgnoredLess = std::less<Key>,
             }
         }
 
-        throw std::out_of_range("key not found");
+        JSON_THROW(std::out_of_range("key not found"));
     }
 
     size_type erase(const Key& key)

single_include/nlohmann/json.hpp

@@ -16395,6 +16395,9 @@ class serializer
 #include <utility> // pair
 #include <vector> // vector
 
+// #include <nlohmann/detail/macro_scope.hpp>
+
+
 namespace nlohmann
 {
 
@@ -16454,7 +16457,7 @@ template <class Key, class T, class IgnoredLess = std::less<Key>,
             }
         }
 
-        throw std::out_of_range("key not found");
+        JSON_THROW(std::out_of_range("key not found"));
     }
 
     const T& at(const Key& key) const
@@ -16467,7 +16470,7 @@ template <class Key, class T, class IgnoredLess = std::less<Key>,
             }
         }
 
-        throw std::out_of_range("key not found");
+        JSON_THROW(std::out_of_range("key not found"));
     }
 
     size_type erase(const Key& key)

test/cmake_add_subdirectory/project/CMakeLists.txt

@@ -11,3 +11,10 @@ target_link_libraries(with_namespace_target nlohmann_json::nlohmann_json)
 
 add_executable(without_namespace_target main.cpp)
 target_link_libraries(without_namespace_target nlohmann_json)
+
+if(NOT MSVC)
+    add_executable(without_exceptions main.cpp)
+    target_link_libraries(without_exceptions nlohmann_json::nlohmann_json)
+    target_compile_definitions(without_exceptions PRIVATE JSON_NOEXCEPTION)
+    target_compile_options(without_exceptions PRIVATE -fno-exceptions)
+endif()