From: Jonathan Wakely <jwakely@redhat.com>
Date: Fri, 10 Oct 2025 22:16:22 +0000 (+0100)
Subject: libstdc++: Fix check for 7-bit ASCII characters
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fc74f4f0a2cf8372d00c1e5f228138051c3b7864;p=thirdparty%2Fgcc.git

libstdc++: Fix check for 7-bit ASCII characters

This should check for c <= 0x7f not x < 0x7f, because 0x7f is an ASCII
character (DEL).

libstdc++-v3/ChangeLog:

	* include/bits/unicode.h (__is_single_code_unit): Fix check for
	7-bit ASCII characters.

Reviewed-by: Tomasz Kamiński <tkaminsk@redhat.com>
---

diff --git a/libstdc++-v3/include/bits/unicode.h b/libstdc++-v3/include/bits/unicode.h
index 88e97d41a9e..00efbe89ca8 100644
--- a/libstdc++-v3/include/bits/unicode.h
+++ b/libstdc++-v3/include/bits/unicode.h
@@ -61,7 +61,7 @@ namespace __unicode
     __is_single_code_unit(char32_t __c)
     {
       if constexpr (__gnu_cxx::__int_traits<_CharT>::__max <= 0xFF)
-	return __c < 0x7F; // ASCII character
+	return __c <= 0x7F; // ASCII character
       else
 	return __c < __gnu_cxx::__int_traits<_CharT>::__max
 		       && __is_scalar_value(__c);