feat: adjust array-dim2 according to Memcheck result

.gitignore

@@ -0,0 +1 @@
+*.o

array-dim2/main.c

@@ -26,10 +26,11 @@ int main(int argc, char *argv[]) {
 
   json_decref(arrayInt);
 
-
   sizeArAr = json_array_size(arrayArray);
   fprintf(stdout,"main() size(arrayArray): %ld\n", sizeArAr);
 
+  json_decref(arrayArray);
+
   fprintf(stdout,"main() Done.\n");
   return 0;
 }

array-dim2/makefile

@@ -17,6 +17,12 @@ CC      = /usr/bin/gcc
 all: main.o
 	$(CC) main.c -L/usr/lib/x86_64-linux-gnu -ljansson -Wall -o $(EXE)
 #
+#Compile your program with -g to include debugging information so that Memcheck's error messages include exact line numbers.
+#-O0 means no optmization
+#-g - adds debugging symbols to executable
+debug: main.o
+	$(CC) main.c -L/usr/lib/x86_64-linux-gnu -ljansson -Wall -o $(EXE) -O0 -g
+#
 main.o:
 	$(CC) -c main.c
 # Clean Up Objects, Exectuables, Dumps out of source directory

array-dim2/readme.md

@@ -4,6 +4,12 @@
 make clean all
 ```
 
+* build in debugging mode
+
+```
+make debug
+```
+
 * cleanup
 
 ```
@@ -15,3 +21,9 @@ make clean
 ```
 ./main
 ```
+
+* run Valgrind tool `Memcheck`
+
+```
+valgrind --leak-check=yes -s ./main
+```