serial experiment works

[rpikern] / src / libc / ctype.h

diff --git a/src/libc/ctype.h b/src/libc/ctype.h
new file mode 100644 (file)
index 0000000..a36c694
--- /dev/null
+++ b/src/libc/ctype.h
@@ -0,0 +1,18 @@
+#ifndef CTYPES_H_
+#define CTYPES_H_
+
+int isalnum(int c);
+int isalpha(int c);
+#define isascii(c)     ((c) < 128)
+int isblank(int c);
+int isdigit(int c);
+int isupper(int c);
+int islower(int c);
+int isprint(int c);
+int isspace(int c);
+
+int toupper(int c);
+int tolower(int c);
+
+
+#endif /* CTYPES_H_ */