1 files changed, 16 insertions, 0 deletions
diff --git a/user/lib/isspace.c b/user/lib/isspace.c
new file mode 100644
index 0000000..9e89d76
--- /dev/null
+++ b/user/lib/isspace.c
@@ -0,0 +1,16 @@
+#include <ctype.h>
+
+int isspace(int c)
+{
+	switch (c) {
+	case ' ':
+	case '\t':
+	case '\v':
+	case '\f':
+	case '\r':
+	case '\n':
+		return 1;
+	default:
+		return 0;
+	}
+}