X-Git-Url: https://git.ozlabs.org/?a=blobdiff_plain;f=ccan%2Fstr%2Ftest%2Fcompile_fail-islower.c;h=8f5c456197ff33cb2e4fdeef9704702b2aefa43c;hb=ad2ce76c10f808283ea7cf25cd8e76a15710c4f3;hp=9dec95f69a0881cbe530a62c4e2abac849fda6d5;hpb=ecea073699c60fd5aab9e3955f59a7042d637b68;p=ccan

diff --git a/ccan/str/test/compile_fail-islower.c b/ccan/str/test/compile_fail-islower.c
index 9dec95f6..8f5c4561 100644
--- a/ccan/str/test/compile_fail-islower.c
+++ b/ccan/str/test/compile_fail-islower.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 islower.
@@ -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 islower(c);