Data commit

Task/Scope-modifiers/C/scope-modifiers-1.c

@@ -0,0 +1,24 @@
+int a;          // a is global
+static int p;   // p is "locale" and can be seen only from file1.c
+
+extern float v; // a global declared somewhere else
+
+// a "global" function
+int code(int arg)
+{
+  int myp;        // 1) this can be seen only from inside code
+                  // 2) In recursive code this variable will be in a
+                  //    different stack frame (like a closure)
+  static int myc; // 3) still a variable that can be seen only from
+                  //    inside code, but its value will be kept
+                  //    among different code calls
+                  // 4) In recursive code this variable will be the
+                  //    same in every stack frame - a significant scoping difference
+}
+
+// a "local" function; can be seen only inside file1.c
+static void code2(void)
+{
+  v = v * 1.02;    // update global v
+  // ...
+}

Task/Scope-modifiers/C/scope-modifiers-2.c

@@ -0,0 +1,8 @@
+float v;         // a global to be used from file1.c too
+static int p;    // a file-scoped p; nothing to share with static p
+                 // in file1.c
+
+int code(int);   // this is enough to be able to use global code defined in file1.c
+                 // normally these things go into a header.h
+
+// ...