Initial data commit

Task/Queue-Usage/C/queue-usage.c

@@ -0,0 +1,31 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdbool.h>
+
+#include <sys/queue.h>
+
+/* #include "fifolist.h" */
+
+int main()
+{
+  int i;
+  FIFOList head;
+
+  TAILQ_INIT(&head);
+
+  /* insert 20 integer values */
+  for(i=0; i < 20; i++) {
+    m_enqueue(i, &head);
+  }
+
+  /* dequeue and print */
+  while( m_dequeue(&i, &head) )
+    printf("%d\n", i);
+
+  fprintf(stderr, "FIFO list %s\n",
+      ( m_dequeue(&i, &head) ) ?
+      "had still an element" :
+      "is void!");
+
+  exit(0);
+}