Added 'C_C++/function_pointer_strategy.c'

C_C++/function_pointer_strategy.c

@@ -0,0 +1,32 @@
+/* @BAKE gcc $@ -o $*.out $(pkg-config --cflags --libs ncurses) && ./$*.out
+ */
+#include <stdio.h>
+#include <ncurses.h>
+
+signed main() {
+    /* Irrelevant */
+    initscr();
+    cbreak();
+    curs_set(0);
+    noecho();
+    nodelay(stdscr, true);
+    scrollok(stdscr, true);
+    /* ---------- */
+    void recieve() {
+        addstr("Recieved a message.\n");
+    }
+    void block() {
+        addstr("A message was blocked.\n");
+    }
+
+    void (*strategizing_function)(void) = recieve;
+
+    while (1) {
+        char c = wgetch(stdscr);
+        if (c != EOF) {
+            strategizing_function = (strategizing_function == recieve ? block : recieve);
+        }
+        strategizing_function();
+        napms(500);
+    }
+}