First commitHEADmain

1 files changed, 21 insertions, 0 deletions

diff --git a/understanding_scope_1.c b/understanding_scope_1.c
new file mode 100644
index 0000000..e22cc38
--- /dev/null
+++ b/understanding_scope_1.c
@@ -0,0 +1,21 @@
+#include <stdio.h>
+#include "tutorial6.h"
+
+//int a = 3;
+//extern int a;
+
+
+
+void func1(void)
+{
+    	extern int a;
+   	a = 4;
+    	{
+        	extern int a;
+        	a = 99;
+        	{
+        		extern int a;
+        		printf("a is: %d\n",a);
+        	}
+    	}
+}