[libcxx-commits] [libcxx] 3d7c632 - [libc++][C++03] Cherry-pick #148231 (#163360)

[via libcxx-commits]

Author: Nikolas Klauser
Date: 2025-10-14T13:00:45+02:00
New Revision: 3d7c632bfbb9a98a1302f6f0f95bde4c2d4d4e8f

URL: https://github.com/llvm/llvm-project/commit/3d7c632bfbb9a98a1302f6f0f95bde4c2d4d4e8f
DIFF: https://github.com/llvm/llvm-project/commit/3d7c632bfbb9a98a1302f6f0f95bde4c2d4d4e8f.diff

LOG: [libc++][C++03] Cherry-pick #148231 (#163360)

Added: 
    

Modified: 
    libcxx/include/__cxx03/regex
    libcxx/test/std/re/re.regex/re.regex.construct/bad_range.pass.cpp

Removed: 
    


################################################################################
diff  --git a/libcxx/include/__cxx03/regex b/libcxx/include/__cxx03/regex
index f4e662d283cb9..b6a78f27fbd37 100644
--- a/libcxx/include/__cxx03/regex
+++ b/libcxx/include/__cxx03/regex
@@ -2100,7 +2100,7 @@ public:
       __ranges_.push_back(
           std::make_pair(__traits_.transform(__b.begin(), __b.end()), __traits_.transform(__e.begin(), __e.end())));
     } else {
-      if (__b.size() != 1 || __e.size() != 1)
+      if (__b.size() != 1 || __e.size() != 1 || char_traits<typename string_type::value_type>::lt(__e[0], __b[0]))
         __throw_regex_error<regex_constants::error_range>();
       if (__icase_) {
         __b[0] = __traits_.translate_nocase(__b[0]);

diff  --git a/libcxx/test/std/re/re.regex/re.regex.construct/bad_range.pass.cpp b/libcxx/test/std/re/re.regex/re.regex.construct/bad_range.pass.cpp
index ecfdaee2eed66..cabd9ebec520e 100644
--- a/libcxx/test/std/re/re.regex/re.regex.construct/bad_range.pass.cpp
+++ b/libcxx/test/std/re/re.regex/re.regex.construct/bad_range.pass.cpp
@@ -14,8 +14,6 @@
 // template <class ST, class SA>
 //    basic_regex(const basic_string<charT, ST, SA>& s);
 
-// XFAIL: FROZEN-CXX03-HEADERS-FIXME
-
 #include <regex>
 #include <cassert>
 #include "test_macros.h"