From: Ilya Leoshkevich <iii@linux.ibm.com>
Date: Tue, 21 Jul 2020 11:15:07 +0000 (+0200)
Subject: zng_tr_tally_lit: disable -Wtype-limits
X-Git-Tag: 1.9.9-b1~72
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=24c442c606d9121da64b25693c9bb1a898b3553f;p=thirdparty%2Fzlib-ng.git

zng_tr_tally_lit: disable -Wtype-limits

Some gcc versions complain that parameter c is always less than
MAX_MATCH-MIN_MATCH, and therefore the assertion that checks for this
is useless, but in reality some day MIN_MATCH and MAX_MATCH can change.

So disable the warning around the assertion.
---

diff --git a/deflate_p.h b/deflate_p.h
index 09746a75..c956f7f4 100644
--- a/deflate_p.h
+++ b/deflate_p.h
@@ -33,7 +33,10 @@ static inline int zng_tr_tally_lit(deflate_state *s, unsigned char c) {
     s->sym_buf[s->sym_next++] = c;
     s->dyn_ltree[c].Freq++;
     Tracevv((stderr, "%c", c));
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wtype-limits"
     Assert(c <= (MAX_MATCH-MIN_MATCH), "zng_tr_tally: bad literal");
+#pragma GCC diagnostic pop
     return (s->sym_next == s->sym_end);
 }