[C++] g++의 c++지원 version

Overview

g++ 버전에 따라 c++ 지원 버전이 다르기 때문에 해당 내용을 정리한다.

Contents

C++	GCC	Description
C++23	GCC 11 ~	-std=c++2b, -std=gnu++2b
C++20	GCC 8 ~	-std=c++20, -std=c++2a, -std=gnu++20
C++17	GCC 5 ~ GCC 11 (default) ~	-std=c++17, -std=gnu++17
C++14	GCC 4.9 ~ GCC 6.1 (default) ~ GCC 10	-std=c++14, -std=gnu++14
C++11	GCC 4.7 ~ GCC 5.x (default?) ~	-std=c++11, -std=gnu++11
C++0x	GCC 4.3 ~ GCC 4.6 (experimental)
C++98	~ GCC 6.0 (default?)	-std=c++98

Language standard pre define macro

Name	Macro	Standard
C89	_STDC_	ANSI X3.159-1989
C90	_STDC_	ISO/IEC 9899:1990
C94	_STDC_VERSION_ = 199409L	ISO/IEC 9899-1:1994
C99	_STDC_VERSION_ = 199901L	ISO/IEC 9899:1999
C11	_STDC_VERSION_ = 201112L	ISO/IEC 9899:2011
C18	_STDC_VERSION_ = 201710L	ISO/IEC 9899:2018
C++98	__cplusplus = 199711L	ISO/IEC 14882:1998
C++11	__cplusplus = 201103L	ISO/IEC 14882:2011
C++14	__cplusplus = 201402L	ISO/IEC 14882:2014
C++17	__cplusplus = 201703L	ISO/IEC 14882:2017
C++/CLI	__cplusplus_cli = 200406L	ECMA-372
DSP-C		ISO/IEC JTC1/SC22 WG14/N854
EC++	__embedded_cplusplus	Embedded C++

#if defined(_MSVC_LANG)  // MS compiler has different __cplusplus value.
#   if _MSVC_LANG < 201703
#       error Please compile for C++17 or higher
#   endif
#else  // All other compilers.
#   if __cplusplus < 201703
#       error Please compile for C++17 or higher
#   endif
#endif