[PATCH 4/5] qualify constant with the const

[Marin Ramesa]

Function cnputc() should never modify it's argument so qualify it
with a const keyword.

* device/cons.c (cnputc): Qualify argument as const.
* device/cons.h (cnputc): Likewise.

---
 device/cons.c | 2 +-
 device/cons.h | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/device/cons.c b/device/cons.c
index ceba7f2..94d4ebf 100644
--- a/device/cons.c
+++ b/device/cons.c
@@ -141,7 +141,7 @@ cnmaygetc()
 
 void
 cnputc(c)
-       char c;
+       const char c;
 {
        if (c == 0)
                return;
diff --git a/device/cons.h b/device/cons.h
index 8ac796c..32a8739 100644
--- a/device/cons.h
+++ b/device/cons.h
@@ -53,5 +53,5 @@ extern int cngetc(void);
 
 extern int cnmaygetc(void);
 
-extern void cnputc(char);
+extern void cnputc(const char);
 #endif /* _DEVICE_CONS_H */
-- 
1.8.1.4