Add demo output comparison step to CI

Author: diffstorm

.github/workflows/c-cpp.yml

@@ -41,6 +41,16 @@ jobs:
       working-directory: ./build
       run: ./demo_cpp
 
+    - name: Compare demo outputs
+      run: |
+        ./demo > output1.txt
+        ./demo_cpp > output2.txt
+        if ! diff -q output1.txt output2.txt; then
+          echo "Outputs differ!"
+          diff output1.txt output2.txt
+          exit 1
+        fi
+
     - name: Run Tests
       working-directory: ./build
       run: ./json_parser_tests

demo.c

@@ -51,7 +51,7 @@ int main()
                 break;
 
             case JSON_TOKEN_NUMBER:
-                printf("Number: %f\n", t->value.number);
+                printf("Number: %g\n", t->value.number);
                 break;
 
             case JSON_TOKEN_TRUE: