basic automated testing

1 files changed, 32 insertions, 0 deletions

diff --git a/test/06-goto.c b/test/06-goto.c
new file mode 100644
index 0000000..075467c
--- /dev/null
+++ b/test/06-goto.c
@@ -0,0 +1,32 @@
+/* EXPECT:
+7 -> 14
+-3 -> 0
+0 -> 0
+2 -> 4
+*/
+int crz(int x) {
+/* x <<= 1; while (x < 0) ++x; return x; */
+  goto e;
+a:
+  return x;
+j:
+  ++x;
+  goto q;
+b:
+  if (x < 0)
+    goto j;
+  goto a;
+q:
+  goto b;
+e:
+  x <<= 1;
+  goto b;
+}
+
+int printf(const char *, ...);
+int main(int n) {
+   n = 7,  printf("%d -> %d\n", n, crz(n));
+   n = -3, printf("%d -> %d\n", n, crz(n));
+   n = 0,  printf("%d -> %d\n", n, crz(n));
+   n = 2,  printf("%d -> %d\n", n, crz(n));
+}