1 files changed, 37 insertions, 12 deletions
diff --git a/ex1-8.c b/ex1-8.c
index cc70b64..7e8c3bd 100644
--- a/ex1-8.c
+++ b/ex1-8.c
@@ -1,18 +1,43 @@
 #include <stdio.h>
 #include <stdint.h>
 
-int main(void) {
-  int c;
-  uint32_t nl = 0, tb = 0, bl = 0;
-  while ((c = getchar()) != EOF) {
-    if (c == ' ') {
-      bl++;
-    } else if (c == '\n') {
-      nl++;
-    } else if (c == '\t') {
-      tb++;
-    }
+struct res {
+  uint64_t nl;
+  uint64_t tb;
+  uint64_t bl;
+};
+
+struct res nr(void) {
+  struct res r = {
+    .nl = 0,
+    .tb = 0,
+    .bl = 0.
+  };
+  return r;
+}
+
+static struct res _loop(struct res res) {
+  int c = getchar();
+  if (c == EOF) {
+    return res;
   }
-  printf("nl=%ld tb=%ld bl=%ld\n", nl, tb, bl);
+  if (c == ' ') {
+     res = (struct res){
+      .bl = res.bl+1,
+      .nl = res.nl,
+      .tb = res.tb,
+    };
+  } else if (c == '\n') {
+    res.nl++;
+  } else if (c == '\t') {
+    res.tb++;
+  }
+  __attribute__((musttail))
+  return _loop(res);
+}
+
+int main(void) {
+  struct res r = _loop(nr());
+  printf("nl=%ld tb=%ld bl=%ld\n", r.nl, r.tb, r.bl);
   return 0;
 }