mirror of
https://github.com/boostorg/wave.git
synced 2026-01-19 04:42:16 +00:00
ee0a7c14c5
Resolve #96 by introducing C++17 feature (and frequent vendor extension) __has_include(), along with appropriate unit tests and documentation updates
26 lines
813 B
C++
26 lines
813 B
C++
/*=============================================================================
|
|
Boost.Wave: A Standard compliant C++ preprocessor library
|
|
http://www.boost.org/
|
|
|
|
Copyright (c) 2020 Jeff Trull. Distributed under the Boost
|
|
Software License, Version 1.0. (See accompanying file
|
|
LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
|
|
=============================================================================*/
|
|
|
|
// Test that __has_include is an available macro name before C++17
|
|
|
|
//O --c++11
|
|
//O -Werror
|
|
|
|
#ifdef __has_include
|
|
#warning has_include is available in C++11 mode
|
|
#endif
|
|
|
|
#define __has_include(X) something
|
|
|
|
//H 10: t_2_029.cpp(15): #ifdef
|
|
//H 11: t_2_029.cpp(15): #ifdef __has_include: 0
|
|
//H 10: t_2_029.cpp(19): #define
|
|
//H 08: t_2_029.cpp(19): __has_include(X)=something
|
|
|