Add 'json4cpp/' from commit '9a737481aed085fd289f82dff1fa8c3c66627a7e'

git-subtree-dir: json4cpp
git-subtree-mainline: 292baed7ac0cf84263263966ed32ed113cae857f
git-subtree-split: 9a737481aed085fd289f82dff1fa8c3c66627a7e

1 files changed, 51 insertions, 0 deletions

diff --git a/json4cpp/tests/src/unit-disabled_exceptions.cpp b/json4cpp/tests/src/unit-disabled_exceptions.cpp
new file mode 100644
index 0000000000..e4532e2349
--- /dev/null
+++ b/json4cpp/tests/src/unit-disabled_exceptions.cpp
@@ -0,0 +1,51 @@
+//     __ _____ _____ _____
+//  __|  |   __|     |   | |  JSON for Modern C++ (supporting code)
+// |  |  |__   |  |  | | | |  version 3.12.0
+// |_____|_____|_____|_|___|  https://github.com/nlohmann/json
+//
+// SPDX-FileCopyrightText: 2013-2026 Niels Lohmann <https://nlohmann.me>
+// SPDX-License-Identifier: MIT
+
+#include "doctest_compatibility.h"
+
+// disable -Wnoexcept as exceptions are switched off for this test suite
+DOCTEST_GCC_SUPPRESS_WARNING_PUSH
+DOCTEST_GCC_SUPPRESS_WARNING("-Wnoexcept")
+
+#include <nlohmann/json.hpp>
+using json = nlohmann::json;
+
+/////////////////////////////////////////////////////////////////////
+// for #2824
+/////////////////////////////////////////////////////////////////////
+
+class sax_no_exception : public nlohmann::detail::json_sax_dom_parser<json, nlohmann::detail::string_input_adapter_type>
+{
+  public:
+    explicit sax_no_exception(json& j) : nlohmann::detail::json_sax_dom_parser<json, nlohmann::detail::string_input_adapter_type>(j, false) {}
+
+    static bool parse_error(std::size_t /*position*/, const std::string& /*last_token*/, const json::exception& ex)
+    {
+        error_string = new std::string(ex.what()); // NOLINT(cppcoreguidelines-owning-memory)
+        return false;
+    }
+
+    static std::string* error_string;
+};
+
+std::string* sax_no_exception::error_string = nullptr;
+
+TEST_CASE("Tests with disabled exceptions")
+{
+    SECTION("issue #2824 - encoding of json::exception::what()")
+    {
+        json j;
+        sax_no_exception sax(j);
+
+        CHECK (!json::sax_parse("xyz", &sax));
+        CHECK(*sax_no_exception::error_string == "[json.exception.parse_error.101] parse error at line 1, column 1: syntax error while parsing value - invalid literal; last read: 'x'");
+        delete sax_no_exception::error_string; // NOLINT(cppcoreguidelines-owning-memory)
+    }
+}
+
+DOCTEST_GCC_SUPPRESS_WARNING_POP