[libcxx-commits] [libcxx] d7d4e4a - [libc++][NFC] Don't use copy_n to copy a single integer in __sign_combinator (#181119)

[via libcxx-commits]

Author: Nikolas Klauser
Date: 2026-02-13T10:51:57+01:00
New Revision: d7d4e4ace55cb6f1f727d1053e9d409882453b20

URL: https://github.com/llvm/llvm-project/commit/d7d4e4ace55cb6f1f727d1053e9d409882453b20
DIFF: https://github.com/llvm/llvm-project/commit/d7d4e4ace55cb6f1f727d1053e9d409882453b20.diff

LOG: [libc++][NFC] Don't use copy_n to copy a single integer in __sign_combinator (#181119)

We can just assign the integer directly.

Added: 
    

Modified: 
    libcxx/include/__charconv/from_chars_integral.h

Removed: 
    


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diff  --git a/libcxx/include/__charconv/from_chars_integral.h b/libcxx/include/__charconv/from_chars_integral.h
index 903e892cab85b..3063c0978c8fa 100644
--- a/libcxx/include/__charconv/from_chars_integral.h
+++ b/libcxx/include/__charconv/from_chars_integral.h
@@ -10,12 +10,10 @@
 #ifndef _LIBCPP___CHARCONV_FROM_CHARS_INTEGRAL_H
 #define _LIBCPP___CHARCONV_FROM_CHARS_INTEGRAL_H
 
-#include <__algorithm/copy_n.h>
 #include <__assert>
 #include <__charconv/from_chars_result.h>
 #include <__charconv/traits.h>
 #include <__config>
-#include <__memory/addressof.h>
 #include <__system_error/errc.h>
 #include <__type_traits/enable_if.h>
 #include <__type_traits/is_integral.h>
@@ -56,8 +54,7 @@ __sign_combinator(_It __first, _It __last, _Tp& __value, _Fn __f, _Ts... __args)
 
   if (__neg) {
     if (__x <= std::__complement(std::__to_unsigned_like(__tl::min()))) {
-      __x = std::__complement(__x);
-      std::copy_n(std::addressof(__x), 1, std::addressof(__value));
+      __value = std::__complement(__x);
       return __r;
     }
   } else {