From fc74f4f0a2cf8372d00c1e5f228138051c3b7864 Mon Sep 17 00:00:00 2001 From: Jonathan Wakely Date: Fri, 10 Oct 2025 23:16:22 +0100 Subject: [PATCH] libstdc++: Fix check for 7-bit ASCII characters MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit 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 --- libstdc++-v3/include/bits/unicode.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) 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); -- 2.47.3