From: Mark Wooding <mdw@distorted.org.uk>
Date: Wed, 18 Sep 2019 19:22:39 +0000 (+0100)
Subject: struct/buf.c: Muffle an annoying Clang warning about a pointless assertion.
X-Git-Tag: 2.4.0~1
X-Git-Url: https://git.distorted.org.uk/~mdw/mLib/commitdiff_plain/0d61a23cc6a7628bb9ada98ae7a65700dc1fd2f7

struct/buf.c: Muffle an annoying Clang warning about a pointless assertion.

Of course, since this code is macro-generated, it's not at all
pointless.
---

diff --git a/struct/buf.c b/struct/buf.c
index 1ac6bb9..d86904c 100644
--- a/struct/buf.c
+++ b/struct/buf.c
@@ -31,6 +31,7 @@
 #include <string.h>
 
 #include "buf.h"
+#include "macros.h"
 
 /*----- Main code ---------------------------------------------------------*/
 
@@ -273,7 +274,9 @@ void *buf_getmemz(buf *b, size_t *nn)
 #define BUF_PUTMEM_(n, W, w)						\
   int buf_putmem##w(buf *b, const void *p, size_t sz)			\
   {									\
-    assert(sz <= MASK##W);						\
+    MUFFLE_WARNINGS_STMT						\
+      (CLANG_WARNING("-Wtautological-constant-out-of-range-compare"),	\
+       { assert(sz <= MASK##W); });					\
     if (buf_putu##w(b, sz) || buf_put(b, p, sz))			\
       return (-1);							\
     return (0);								\