scope examples

c-basic/global_scope.c

@@ -0,0 +1,19 @@
+#include <stdio.h>
+
+int main()
+{
+  int a;
+
+  a = 10;
+
+  {
+    int a;
+
+    a = 20;
+    printf("%d\n", a); // 20
+  }
+
+  printf("%d\n", a); // 10
+
+  return 0;
+}

c-basic/scope.c

@@ -3,9 +3,7 @@
 void foo()
 {
   int a;
-  {
   int a;
-  }
 }
 
 int main()