// -*- coding: utf-8 -*-
// Copyright (C) 2013-2019 Laboratoire de Recherche et Développement
// de l'Epita (LRDE).
//
// This file is part of Spot, a model checking library.
//
// Spot is free software; you can redistribute it and/or modify it
// under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 3 of the License, or
// (at your option) any later version.
//
// Spot is distributed in the hope that it will be useful, but WITHOUT
// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
// or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
// License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see .
#include
#include
#include
#pragma once
#ifdef __GNUC__
#define SPOT_LIKELY(expr) __builtin_expect(!!(expr), 1)
#define SPOT_UNLIKELY(expr) __builtin_expect(!!(expr), 0)
#else
#define SPOT_LIKELY(expr) (expr)
#define SPOT_UNLIKELY(expr) (expr)
#endif
#ifdef __has_cpp_attribute
# if __has_cpp_attribute(deprecated) && __cplusplus >= 201402L
# define SPOT_DEPRECATED(msg) [[deprecated(msg)]]
# elif __has_cpp_attribute(gnu::deprecated)
# define SPOT_DEPRECATED(msg) [[gnu::deprecated(msg)]]
# elif __has_cpp_attribute(clang::deprecated)
# define SPOT_DEPRECATED(msg) [[clang::deprecated(msg)]]
# endif
#endif
#ifndef SPOT_DEPRECATED
# ifdef __GNUC__
# define SPOT_DEPRECATED(msg) __attribute__ ((deprecated))
# elif defined(_MSC_VER)
# define SPOT_DEPRECATED(msg) __declspec(deprecated)
# else
# define SPOT_DEPRECATED(msg)
# endif
#endif
#if defined _WIN32 || defined __CYGWIN__
#define SPOT_HELPER_DLL_IMPORT __declspec(dllimport)
#define SPOT_HELPER_DLL_EXPORT __declspec(dllexport)
#define SPOT_HELPER_DLL_LOCAL
#else
#if __GNUC__ >= 4
#define SPOT_HELPER_DLL_IMPORT __attribute__ ((visibility ("default")))
#define SPOT_HELPER_DLL_EXPORT __attribute__ ((visibility ("default")))
#define SPOT_HELPER_DLL_LOCAL __attribute__ ((visibility ("hidden")))
#else
#define SPOT_HELPER_DLL_IMPORT
#define SPOT_HELPER_DLL_EXPORT
#define SPOT_HELPER_DLL_LOCAL
#endif
#endif
#ifdef SPOT_BUILD
#define SPOT_DLL
#endif
// We should not call assert() in headers. For the rare cases where
// we do really want to call assert(), use spot_assert__ instead.
// Else use SPOT_ASSERT so the assert() are removed from user's
// builds.
#define spot_assert__ assert
#if defined(SPOT_BUILD) or defined(SPOT_DEBUG)
#define SPOT_ASSERT(x) spot_assert__(x)
#else
#define SPOT_ASSERT(x) while (0)
#endif
// SPOT_API is used for the public API symbols. It either DLL imports
// or DLL exports (or does nothing for static build) SPOT_LOCAL is
// used for non-api symbols that may occur in header files.
#ifdef SPOT_DLL
#ifdef SPOT_BUILD
#define SPOT_API SPOT_HELPER_DLL_EXPORT
#else
#define SPOT_API SPOT_HELPER_DLL_IMPORT
#endif
#define SPOT_LOCAL SPOT_HELPER_DLL_LOCAL
#else
#define SPOT_API
#define SPOT_LOCAL
#endif
#define SPOT_API_VAR extern SPOT_API
// Swig 3.0.2 does not understand 'final' when used
// at class definition.
#ifdef SWIG
#define final
#endif
// Do not use those in code, prefer SPOT_UNREACHABLE() instead.
#if defined __clang__ || defined __GNUC__
# define SPOT_UNREACHABLE_BUILTIN() __builtin_unreachable()
# elif defined _MSC_VER
# define SPOT_UNREACHABLE_BUILTIN() __assume(0)
# else
# define SPOT_UNREACHABLE_BUILTIN() abort()
#endif
// The extra parentheses in assert() is so that this
// pattern is not caught by the style checker.
#define SPOT_UNREACHABLE() do { \
SPOT_ASSERT(!("unreachable code reached")); \
SPOT_UNREACHABLE_BUILTIN(); \
} while (0)
#define SPOT_UNIMPLEMENTED() throw std::runtime_error("unimplemented");
#if SPOT_DEBUG
#define SPOT_ASSUME(cond) assert(cond)
#else
#define SPOT_ASSUME(cond) \
do \
{ \
if (!(cond)) \
SPOT_UNREACHABLE_BUILTIN(); \
} \
while (0)
#endif
// Useful when forwarding methods such as:
// auto func(int param) SPOT_RETURN(implem_.func(param));
#define SPOT_RETURN(code) -> decltype(code) { return code; }
// We hope compilers that implement -Wimplicit-fallthrough also
// support __has_cpp_attribute and some form of [[fallthrough]]. Do
// not use [[fallthough]] if the code is compiled in a pre-C++17
// standard since clang's -Wpedantic would complain that we are using
// a feature from the future.
#ifdef __has_cpp_attribute
# if __has_cpp_attribute(fallthrough) && __cplusplus > 201402L
# define SPOT_FALLTHROUGH [[fallthrough]]
# elif __has_cpp_attribute(clang::fallthrough)
# define SPOT_FALLTHROUGH [[clang::fallthrough]]
# elif __has_cpp_attribute(gnu::fallthrough)
# define SPOT_FALLTHROUGH [[gnu::fallthrough]]
# endif
#endif
#ifndef SPOT_FALLTHROUGH
// Clang 3.5 does not support __has_cpp_attribute but has
// [[clang::fallthrough]].
# if __clang__
# define SPOT_FALLTHROUGH [[clang::fallthrough]]
# else
# define SPOT_FALLTHROUGH while (0)
# endif
#endif
namespace spot
{
struct SPOT_API parse_error: public std::runtime_error
{
parse_error(const std::string& s)
: std::runtime_error(s)
{
}
};
}
// This is a workaround for the issue described in GNU GCC bug 89303.
// https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89303
//
// In brief: with some version of gcc distributed by Debian unstable
// and that correspond to something a bit newer than 8.2.1 (Debian is
// tracking the gcc-8-branch instead of following releases), mixing
// make_shared with enable_shared_from_this produces memory leaks or
// bad_weak_ptr exceptions.
//
// Our workaround is simply to avoid calling make_shared in those
// cases.
//
// The use of "enabled" in the macro name is just here to remember
// that we only need this macro for classes that inherit from
// enable_shared_from_this.
#if __GNUC__ == 8 && __GNUC_MINOR__ == 2
# define SPOT_make_shared_enabled__(TYPE, ...) \
std::shared_ptr(new TYPE(__VA_ARGS__))
#else
# define SPOT_make_shared_enabled__(TYPE, ...) \
std::make_shared(__VA_ARGS__)
#endif