X-Git-Url: https://git.ozlabs.org/?a=blobdiff_plain;f=ccan%2Fstr%2Ftest%2Fcompile_fail-isalpha.c;h=33d365538aff0a28c6f5b7f36119363ab6d7ae71;hb=870b63169c782ef0cc52687397e5b9a7125a61b0;hp=76de15041ce537a876ce8bd15c32a07b5e33af02;hpb=ecea073699c60fd5aab9e3955f59a7042d637b68;p=ccan

diff --git a/ccan/str/test/compile_fail-isalpha.c b/ccan/str/test/compile_fail-isalpha.c
index 76de1504..33d36553 100644
--- a/ccan/str/test/compile_fail-isalpha.c
+++ b/ccan/str/test/compile_fail-isalpha.c
@@ -3,6 +3,7 @@
 
 int main(int argc, char *argv[])
 {
+	(void)argc;
 #ifdef FAIL
 #if !HAVE_BUILTIN_TYPES_COMPATIBLE_P || !HAVE_TYPEOF
 #error We need typeof to check isalpha.
@@ -15,8 +16,7 @@ int main(int argc, char *argv[])
 
 #ifdef FAIL
 	/* Fake fail on unsigned char platforms. */
-	c = 255;
-	BUILD_ASSERT(c < 0);
+	BUILD_ASSERT((char)255 < 0);
 #endif
 
 	return isalpha(c);