Go to the documentation of this file. 31 #ifndef _GLIBCXX_CSTDALIGN 32 #define _GLIBCXX_CSTDALIGN 1 34 #ifdef _GLIBCXX_SYSHDR 35 #pragma GCC system_header 38 #if __cplusplus < 201103L 42 # if _GLIBCXX_HAVE_STDALIGN_H 43 # include <stdalign.h> 45 # if __cplusplus >= 202002L && ! _GLIBCXX_USE_DEPRECATED 46 # error "<cstdalign> is not a standard header in C++20, remove the #include" 47 # elif __cplusplus >= 201703L && defined __DEPRECATED 48 # pragma GCC diagnostic push 49 # pragma GCC diagnostic ignored "-Wc++23-extensions" 50 # warning "<cstdalign> is deprecated in C++17, remove the #include" 51 # pragma GCC diagnostic pop