remove useless decl in align.h

poor-circle · poor-circle · commit 535c59763a5c · 2025-11-13T10:42:15.000+08:00
diff --git a/libcxx/include/__memory/align.h b/libcxx/include/__memory/align.h
@@ -19,7 +19,8 @@
 
 _LIBCPP_BEGIN_NAMESPACE_STD
 
-__attribute__((always_inline)) inline void* __align_impl(size_t __align, size_t __sz, void*& __ptr, size_t& __space) {
+_LIBCPP_HIDE_FROM_ABI _LIBCPP_ALWAYS_INLINE inline void*
+__align_impl(size_t __align, size_t __sz, void*& __ptr, size_t& __space) {
   void* __r = nullptr;
   if (__sz <= __space) {
     char* __p1 = static_cast<char*>(__ptr);
@@ -34,11 +35,7 @@ __attribute__((always_inline)) inline void* __align_impl(size_t __align, size_t
   return __r;
 }
 
-#ifdef _LIBCPP_ALIGN_DEFINE_LEGACY_INLINE_FUNCTIONS
-
-_LIBCPP_EXPORTED_FROM_ABI void* align(size_t __align, size_t __sz, void*& __ptr, size_t& __space);
-
-#else
+#ifndef _LIBCPP_ALIGN_DEFINE_LEGACY_INLINE_FUNCTIONS
 
 inline _LIBCPP_HIDE_FROM_ABI void* align(size_t __align, size_t __sz, void*& __ptr, size_t& __space) {
   return __align_impl(__align, __sz, __ptr, __space);
diff --git a/libcxx/src/memory.cpp b/libcxx/src/memory.cpp
@@ -135,7 +135,7 @@ __sp_mut& __get_sp_mut(const void* p) {
 
 #if defined(_LIBCPP_ALIGN_DEFINE_LEGACY_INLINE_FUNCTIONS)
 
-void* align(size_t alignment, size_t size, void*& ptr, size_t& space) {
+_LIBCPP_EXPORTED_FROM_ABI void* align(size_t alignment, size_t size, void*& ptr, size_t& space) {
   return __align_impl(alignment, size, ptr, space);
 }
 #endif // _LIBCPP_ALIGN_DEFINE_LEGACY_INLINE_FUNCTIONS

Original file line number	Diff line number	Diff line change
`@@ -135,7 +135,7 @@ __sp_mut& __get_sp_mut(const void* p) {`
`135`	`135`
`136`	`136`	`#if defined(_LIBCPP_ALIGN_DEFINE_LEGACY_INLINE_FUNCTIONS)`
`137`	`137`
`138`		`-void* align(size_t alignment, size_t size, void*& ptr, size_t& space) {`
	`138`	`+_LIBCPP_EXPORTED_FROM_ABI void* align(size_t alignment, size_t size, void*& ptr, size_t& space) {`
`139`	`139`	`return __align_impl(alignment, size, ptr, space);`
`140`	`140`	`}`
`141`	`141`	`#endif // _LIBCPP_ALIGN_DEFINE_LEGACY_INLINE_FUNCTIONS`