1 files changed, 17 insertions, 0 deletions
diff --git a/runtime/klee-libc/putchar.c b/runtime/klee-libc/putchar.c
new file mode 100644
index 00000000..f3fcf01d
--- /dev/null
+++ b/runtime/klee-libc/putchar.c
@@ -0,0 +1,17 @@
+//===-- putchar.c ---------------------------------------------------------===//
+//
+//                     The KLEE Symbolic Virtual Machine
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include <stdio.h>
+#include <unistd.h>
+
+int putchar(int c) {
+  char x = c;
+  write(1, &x, 1);
+  return 1;
+}