1 files changed, 3 insertions, 0 deletions
diff --git a/euler/include/cctype b/euler/include/cctype
new file mode 100644
index 0000000..2afc53d
--- /dev/null
+++ b/euler/include/cctype
@@ -0,0 +1,3 @@
+#pragma once
+
+extern "C" int isspace(int ch);