more corpus and C++14 for CI

Author: tyler92

.github/workflows/run_fuzzer.yml

@@ -60,7 +60,7 @@ jobs:
         buildtype: 'boost'
         path: 'head'
         toolset: clang-18
-        cxxstd: 17
+        cxxstd: 14
         targets: libs/json/fuzzing//run
     - name: Pack the corpus
       working-directory: boost-root/libs/json/fuzzing/

fuzzing/old_crashes/direct_parse/valid_cxx14.json

@@ -0,0 +1,20 @@
+{
+  "b": true,
+  "i64": -123,
+  "u64": 123,
+  "f": 123.45,
+  "d": 0.9832747263462,
+  "s": "text",
+  "v1": [true, false],
+  "v2": [-12, 89],
+  "v3": [1000, 0],
+  "a1": [true, false, true],
+  "a2": [-1, 2, 3],
+  "a3": [1, 2, 3],
+  "m1": {"k": 42},
+  "m2": {"k": "v"},
+  "m3": {"k": 0.42},
+  "t1": [true, 1, 2, 1.23, "s"],
+  "t2": [["a", "b", "c"], [1.0, 0.1, 2.2], null],
+  "t3": [[], []]
+}

fuzzing/old_crashes/direct_parse/valid_cxx17.json

@@ -0,0 +1,26 @@
+{
+  "b": true,
+  "i64": -123,
+  "u64": 123,
+  "f": 123.45,
+  "d": 0.9832747263462,
+  "s": "text",
+  "v1": [true, false],
+  "v2": [-12, 89],
+  "v3": [1000, 0],
+  "a1": [true, false, true],
+  "a2": [-1, 2, 3],
+  "a3": [1, 2, 3],
+  "m1": {"k": 42},
+  "m2": {"k": "v"},
+  "m3": {"k": 0.42},
+  "t1": [true, 1, 2, 1.23, "s"],
+  "t2": [["a", "b", "c"], [1.0, 0.1, 2.2], null],
+  "t3": [[], []],
+  "ob": null,
+  "oi": 123,
+  "ou": 456,
+  "od": 1.1,
+  "os": null,
+  "v": "text"
+}