From: Ken Brown <kbrown@cornell.edu>
Date: Sat, 21 Jul 2018 16:15:22 +0000 (-0400)
Subject: Pacify GCC 7 with -Wformat-overflow
X-Git-Tag: emacs-27.0.90~4664^2~46
X-Git-Url: http://git.eshelyaron.com/gitweb/?a=commitdiff_plain;h=f3f67cf0b9a6388d423e048a7aafad2eb531b5a5;p=emacs.git

Pacify GCC 7 with -Wformat-overflow

* src/w32term.c (x_draw_glyphless_glyph_string_foreground):
Force sprintf to write at most 6 bytes, excluding the
terminating null byte.
---

diff --git a/src/w32term.c b/src/w32term.c
index ff0d2bf5ddb..0ae173a876b 100644
--- a/src/w32term.c
+++ b/src/w32term.c
@@ -1476,7 +1476,7 @@ x_draw_glyphless_glyph_string_foreground (struct glyph_string *s)
 	{
 	  sprintf ((char *) buf, "%0*X",
 		   glyph->u.glyphless.ch < 0x10000 ? 4 : 6,
-		   (unsigned int) glyph->u.glyphless.ch);
+		   (unsigned int) glyph->u.glyphless.ch & 0xffffff);
 	  str = buf;
 	}