base64: fix for unsigned chars (e.g. ARM).

[ccan] / ccan / cast / test / compile_fail-cast_const.c

diff --git a/ccan/cast/test/compile_fail-cast_const.c b/ccan/cast/test/compile_fail-cast_const.c
index d401cc8ca91c488c159fb8f0d0bdb63bb0fd9df4..24ee4b1f00140ac662c8026e37b3adf1b5996b7b 100644 (file)
--- a/ccan/cast/test/compile_fail-cast_const.c
+++ b/ccan/cast/test/compile_fail-cast_const.c
@@ -6,7 +6,7 @@ struct char_struct {
        char c;
 };
 
-int main(int argc, char *argv[])
+int main(void)
 {
        char *uc;
        const
@@ -18,6 +18,7 @@ int main(int argc, char *argv[])
                *p = NULL;
 
        uc = cast_const(char *, p);
+       (void) uc; /* Suppress unused-but-set-variable warning. */
        return 0;
 }