// Boost config.hpp configuration header file ------------------------------// // Copyright (c) 2001-2003 John Maddock // Copyright (c) 2001 Darin Adler // Copyright (c) 2001 Peter Dimov // Copyright (c) 2002 Bill Kempf // Copyright (c) 2002 Jens Maurer // Copyright (c) 2002-2003 David Abrahams // Copyright (c) 2003 Gennaro Prota // Copyright (c) 2003 Eric Friedman // // 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) // See http://www.boost.org/ for most recent version. // Boost config.hpp policy and rationale documentation has been moved to // http://www.boost.org/libs/config/ // // This file is intended to be stable, and relatively unchanging. // It should contain boilerplate code only - no compiler specific // code unless it is unavoidable - no changes unless unavoidable. #ifndef BOOST_CONFIG_SUFFIX_HPP #define BOOST_CONFIG_SUFFIX_HPP // // look for long long by looking for the appropriate macros in <limits.h>. // Note that we use limits.h rather than climits for maximal portability, // remember that since these just declare a bunch of macros, there should be // no namespace issues from this. // #if !defined(BOOST_HAS_LONG_LONG) && !defined(BOOST_NO_LONG_LONG) \ && !defined(BOOST_MSVC) && !defined(__BORLANDC__) # include <limits.h> # if (defined(ULLONG_MAX) || defined(ULONG_LONG_MAX) || defined(ULONGLONG_MAX)) # define BOOST_HAS_LONG_LONG # else # define BOOST_NO_LONG_LONG # endif #endif // GCC 3.x will clean up all of those nasty macro definitions that // BOOST_NO_CTYPE_FUNCTIONS is intended to help work around, so undefine // it under GCC 3.x. #if defined(__GNUC__) && (__GNUC__ >= 3) && defined(BOOST_NO_CTYPE_FUNCTIONS) # undef BOOST_NO_CTYPE_FUNCTIONS #endif // // Assume any extensions are in namespace std:: unless stated otherwise: // # ifndef BOOST_STD_EXTENSION_NAMESPACE # define BOOST_STD_EXTENSION_NAMESPACE std # endif // // If cv-qualified specializations are not allowed, then neither are cv-void ones: // # if defined(BOOST_NO_CV_SPECIALIZATIONS) \ && !defined(BOOST_NO_CV_VOID_SPECIALIZATIONS) # define BOOST_NO_CV_VOID_SPECIALIZATIONS # endif // // If there is no numeric_limits template, then it can't have any compile time // constants either! // # if defined(BOOST_NO_LIMITS) \ && !defined(BOOST_NO_LIMITS_COMPILE_TIME_CONSTANTS) # define BOOST_NO_LIMITS_COMPILE_TIME_CONSTANTS # define BOOST_NO_MS_INT64_NUMERIC_LIMITS # define BOOST_NO_LONG_LONG_NUMERIC_LIMITS # endif // // if there is no long long then there is no specialisation // for numeric_limits<long long> either: // #if !defined(BOOST_HAS_LONG_LONG) && !defined(BOOST_NO_LONG_LONG_NUMERIC_LIMITS) # define BOOST_NO_LONG_LONG_NUMERIC_LIMITS #endif // // if there is no __int64 then there is no specialisation // for numeric_limits<__int64> either: // #if !defined(BOOST_HAS_MS_INT64) && !defined(BOOST_NO_MS_INT64_NUMERIC_LIMITS) # define BOOST_NO_MS_INT64_NUMERIC_LIMITS #endif // // if member templates are supported then so is the // VC6 subset of member templates: // # if !defined(BOOST_NO_MEMBER_TEMPLATES) \ && !defined(BOOST_MSVC6_MEMBER_TEMPLATES) # define BOOST_MSVC6_MEMBER_TEMPLATES # endif // // Without partial specialization, can't test for partial specialisation bugs: // # if defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) \ && !defined(BOOST_BCB_PARTIAL_SPECIALIZATION_BUG) # define BOOST_BCB_PARTIAL_SPECIALIZATION_BUG # endif // // Without partial specialization, we can't have array-type partial specialisations: // # if defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) \ && !defined(BOOST_NO_ARRAY_TYPE_SPECIALIZATIONS) # define BOOST_NO_ARRAY_TYPE_SPECIALIZATIONS # endif // // Without partial specialization, std::iterator_traits can't work: // # if defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) \ && !defined(BOOST_NO_STD_ITERATOR_TRAITS) # define BOOST_NO_STD_ITERATOR_TRAITS # endif // // Without partial specialization, partial // specialization with default args won't work either: // # if defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) \ && !defined(BOOST_NO_PARTIAL_SPECIALIZATION_IMPLICIT_DEFAULT_ARGS) # define BOOST_NO_PARTIAL_SPECIALIZATION_IMPLICIT_DEFAULT_ARGS # endif // // Without member template support, we can't have template constructors // in the standard library either: // # if defined(BOOST_NO_MEMBER_TEMPLATES) \ && !defined(BOOST_MSVC6_MEMBER_TEMPLATES) \ && !defined(BOOST_NO_TEMPLATED_ITERATOR_CONSTRUCTORS) # define BOOST_NO_TEMPLATED_ITERATOR_CONSTRUCTORS # endif // // Without member template support, we can't have a conforming // std::allocator template either: // # if defined(BOOST_NO_MEMBER_TEMPLATES) \ && !defined(BOOST_MSVC6_MEMBER_TEMPLATES) \ && !defined(BOOST_NO_STD_ALLOCATOR) # define BOOST_NO_STD_ALLOCATOR # endif // // without ADL support then using declarations will break ADL as well: // #if defined(BOOST_NO_ARGUMENT_DEPENDENT_LOOKUP) && !defined(BOOST_FUNCTION_SCOPE_USING_DECLARATION_BREAKS_ADL) # define BOOST_FUNCTION_SCOPE_USING_DECLARATION_BREAKS_ADL #endif // // Without typeid support we have no dynamic RTTI either: // #if defined(BOOST_NO_TYPEID) && !defined(BOOST_NO_RTTI) # define BOOST_NO_RTTI #endif // // If we have a standard allocator, then we have a partial one as well: // #if !defined(BOOST_NO_STD_ALLOCATOR) # define BOOST_HAS_PARTIAL_STD_ALLOCATOR #endif // // We can't have a working std::use_facet if there is no std::locale: // # if defined(BOOST_NO_STD_LOCALE) && !defined(BOOST_NO_STD_USE_FACET) # define BOOST_NO_STD_USE_FACET # endif // // We can't have a std::messages facet if there is no std::locale: // # if defined(BOOST_NO_STD_LOCALE) && !defined(BOOST_NO_STD_MESSAGES) # define BOOST_NO_STD_MESSAGES # endif // // We can't have a working std::wstreambuf if there is no std::locale: // # if defined(BOOST_NO_STD_LOCALE) && !defined(BOOST_NO_STD_WSTREAMBUF) # define BOOST_NO_STD_WSTREAMBUF # endif // // We can't have a <cwctype> if there is no <cwchar>: // # if defined(BOOST_NO_CWCHAR) && !defined(BOOST_NO_CWCTYPE) # define BOOST_NO_CWCTYPE # endif // // We can't have a swprintf if there is no <cwchar>: // # if defined(BOOST_NO_CWCHAR) && !defined(BOOST_NO_SWPRINTF) # define BOOST_NO_SWPRINTF # endif // // If Win32 support is turned off, then we must turn off // threading support also, unless there is some other // thread API enabled: // #if defined(BOOST_DISABLE_WIN32) && defined(_WIN32) \ && !defined(BOOST_DISABLE_THREADS) && !defined(BOOST_HAS_PTHREADS) # define BOOST_DISABLE_THREADS #endif // // Turn on threading support if the compiler thinks that it's in // multithreaded mode. We put this here because there are only a // limited number of macros that identify this (if there's any missing // from here then add to the appropriate compiler section): // #if (defined(__MT__) || defined(_MT) || defined(_REENTRANT) \ || defined(_PTHREADS) || defined(__APPLE__) || defined(__DragonFly__)) \ && !defined(BOOST_HAS_THREADS) # define BOOST_HAS_THREADS #endif // // Turn threading support off if BOOST_DISABLE_THREADS is defined: // #if defined(BOOST_DISABLE_THREADS) && defined(BOOST_HAS_THREADS) # undef BOOST_HAS_THREADS #endif // // Turn threading support off if we don't recognise the threading API: // #if defined(BOOST_HAS_THREADS) && !defined(BOOST_HAS_PTHREADS)\ && !defined(BOOST_HAS_WINTHREADS) && !defined(BOOST_HAS_BETHREADS)\ && !defined(BOOST_HAS_MPTASKS) # undef BOOST_HAS_THREADS #endif // // Turn threading detail macros off if we don't (want to) use threading // #ifndef BOOST_HAS_THREADS # undef BOOST_HAS_PTHREADS # undef BOOST_HAS_PTHREAD_MUTEXATTR_SETTYPE # undef BOOST_HAS_PTHREAD_YIELD # undef BOOST_HAS_PTHREAD_DELAY_NP # undef BOOST_HAS_WINTHREADS # undef BOOST_HAS_BETHREADS # undef BOOST_HAS_MPTASKS #endif // // If the compiler claims to be C99 conformant, then it had better // have a <stdint.h>: // # if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901) # define BOOST_HAS_STDINT_H # ifndef BOOST_HAS_LOG1P # define BOOST_HAS_LOG1P # endif # ifndef BOOST_HAS_EXPM1 # define BOOST_HAS_EXPM1 # endif # endif // // Define BOOST_NO_SLIST and BOOST_NO_HASH if required. // Note that this is for backwards compatibility only. // # if !defined(BOOST_HAS_SLIST) && !defined(BOOST_NO_SLIST) # define BOOST_NO_SLIST # endif # if !defined(BOOST_HAS_HASH) && !defined(BOOST_NO_HASH) # define BOOST_NO_HASH # endif // // Set BOOST_SLIST_HEADER if not set already: // #if defined(BOOST_HAS_SLIST) && !defined(BOOST_SLIST_HEADER) # define BOOST_SLIST_HEADER <slist> #endif // // Set BOOST_HASH_SET_HEADER if not set already: // #if defined(BOOST_HAS_HASH) && !defined(BOOST_HASH_SET_HEADER) # define BOOST_HASH_SET_HEADER <hash_set> #endif // // Set BOOST_HASH_MAP_HEADER if not set already: // #if defined(BOOST_HAS_HASH) && !defined(BOOST_HASH_MAP_HEADER) # define BOOST_HASH_MAP_HEADER <hash_map> #endif // BOOST_HAS_ABI_HEADERS // This macro gets set if we have headers that fix the ABI, // and prevent ODR violations when linking to external libraries: #if defined(BOOST_ABI_PREFIX) && defined(BOOST_ABI_SUFFIX) && !defined(BOOST_HAS_ABI_HEADERS) # define BOOST_HAS_ABI_HEADERS #endif #if defined(BOOST_HAS_ABI_HEADERS) && defined(BOOST_DISABLE_ABI_HEADERS) # undef BOOST_HAS_ABI_HEADERS #endif // BOOST_NO_STDC_NAMESPACE workaround --------------------------------------// // Because std::size_t usage is so common, even in boost headers which do not // otherwise use the C library, the <cstddef> workaround is included here so // that ugly workaround code need not appear in many other boost headers. // NOTE WELL: This is a workaround for non-conforming compilers; <cstddef> // must still be #included in the usual places so that <cstddef> inclusion // works as expected with standard conforming compilers. The resulting // double inclusion of <cstddef> is harmless. # ifdef BOOST_NO_STDC_NAMESPACE # include <cstddef> namespace std { using ::ptrdiff_t; using ::size_t; } # endif // Workaround for the unfortunate min/max macros defined by some platform headers #define BOOST_PREVENT_MACRO_SUBSTITUTION #ifndef BOOST_USING_STD_MIN # define BOOST_USING_STD_MIN() using std::min #endif #ifndef BOOST_USING_STD_MAX # define BOOST_USING_STD_MAX() using std::max #endif // BOOST_NO_STD_MIN_MAX workaround -----------------------------------------// # ifdef BOOST_NO_STD_MIN_MAX namespace std { template <class _Tp> inline const _Tp& min BOOST_PREVENT_MACRO_SUBSTITUTION (const _Tp& __a, const _Tp& __b) { return __b < __a ? __b : __a; } template <class _Tp> inline const _Tp& max BOOST_PREVENT_MACRO_SUBSTITUTION (const _Tp& __a, const _Tp& __b) { return __a < __b ? __b : __a; } } # endif // BOOST_STATIC_CONSTANT workaround --------------------------------------- // // On compilers which don't allow in-class initialization of static integral // constant members, we must use enums as a workaround if we want the constants // to be available at compile-time. This macro gives us a convenient way to // declare such constants. # ifdef BOOST_NO_INCLASS_MEMBER_INITIALIZATION # define BOOST_STATIC_CONSTANT(type, assignment) enum { assignment } # else # define BOOST_STATIC_CONSTANT(type, assignment) static const type assignment # endif // BOOST_USE_FACET / HAS_FACET workaround ----------------------------------// // When the standard library does not have a conforming std::use_facet there // are various workarounds available, but they differ from library to library. // The same problem occurs with has_facet. // These macros provide a consistent way to access a locale's facets. // Usage: // replace // std::use_facet<Type>(loc); // with // BOOST_USE_FACET(Type, loc); // Note do not add a std:: prefix to the front of BOOST_USE_FACET! // Use for BOOST_HAS_FACET is analogous. #if defined(BOOST_NO_STD_USE_FACET) # ifdef BOOST_HAS_TWO_ARG_USE_FACET # define BOOST_USE_FACET(Type, loc) std::use_facet(loc, static_cast<Type*>(0)) # define BOOST_HAS_FACET(Type, loc) std::has_facet(loc, static_cast<Type*>(0)) # elif defined(BOOST_HAS_MACRO_USE_FACET) # define BOOST_USE_FACET(Type, loc) std::_USE(loc, Type) # define BOOST_HAS_FACET(Type, loc) std::_HAS(loc, Type) # elif defined(BOOST_HAS_STLP_USE_FACET) # define BOOST_USE_FACET(Type, loc) (*std::_Use_facet<Type >(loc)) # define BOOST_HAS_FACET(Type, loc) std::has_facet< Type >(loc) # endif #else # define BOOST_USE_FACET(Type, loc) std::use_facet< Type >(loc) # define BOOST_HAS_FACET(Type, loc) std::has_facet< Type >(loc) #endif // BOOST_NESTED_TEMPLATE workaround ------------------------------------------// // Member templates are supported by some compilers even though they can't use // the A::template member<U> syntax, as a workaround replace: // // typedef typename A::template rebind<U> binder; // // with: // // typedef typename A::BOOST_NESTED_TEMPLATE rebind<U> binder; #ifndef BOOST_NO_MEMBER_TEMPLATE_KEYWORD # define BOOST_NESTED_TEMPLATE template #else # define BOOST_NESTED_TEMPLATE #endif // BOOST_UNREACHABLE_RETURN(x) workaround -------------------------------------// // Normally evaluates to nothing, unless BOOST_NO_UNREACHABLE_RETURN_DETECTION // is defined, in which case it evaluates to return x; Use when you have a return // statement that can never be reached. #ifdef BOOST_NO_UNREACHABLE_RETURN_DETECTION # define BOOST_UNREACHABLE_RETURN(x) return x; #else # define BOOST_UNREACHABLE_RETURN(x) #endif // BOOST_DEDUCED_TYPENAME workaround ------------------------------------------// // // Some compilers don't support the use of `typename' for dependent // types in deduced contexts, e.g. // // template <class T> void f(T, typename T::type); // ^^^^^^^^ // Replace these declarations with: // // template <class T> void f(T, BOOST_DEDUCED_TYPENAME T::type); #ifndef BOOST_NO_DEDUCED_TYPENAME # define BOOST_DEDUCED_TYPENAME typename #else # define BOOST_DEDUCED_TYPENAME #endif #ifndef BOOST_NO_TYPENAME_WITH_CTOR # define BOOST_CTOR_TYPENAME typename #else # define BOOST_CTOR_TYPENAME #endif // long long workaround ------------------------------------------// // On gcc (and maybe other compilers?) long long is alway supported // but it's use may generate either warnings (with -ansi), or errors // (with -pedantic -ansi) unless it's use is prefixed by __extension__ // #if defined(BOOST_HAS_LONG_LONG) namespace boost{ # ifdef __GNUC__ __extension__ typedef long long long_long_type; __extension__ typedef unsigned long long ulong_long_type; # else typedef long long long_long_type; typedef unsigned long long ulong_long_type; # endif } #endif // BOOST_[APPEND_]EXPLICIT_TEMPLATE_[NON_]TYPE macros --------------------------// // // Some compilers have problems with function templates whose template // parameters don't appear in the function parameter list (basically // they just link one instantiation of the template in the final // executable). These macros provide a uniform way to cope with the // problem with no effects on the calling syntax. // Example: // // #include <iostream> // #include <ostream> // #include <typeinfo> // // template <int n> // void f() { std::cout << n << ' '; } // // template <typename T> // void g() { std::cout << typeid(T).name() << ' '; } // // int main() { // f<1>(); // f<2>(); // // g<int>(); // g<double>(); // } // // With VC++ 6.0 the output is: // // 2 2 double double // // To fix it, write // // template <int n> // void f(BOOST_EXPLICIT_TEMPLATE_NON_TYPE(int, n)) { ... } // // template <typename T> // void g(BOOST_EXPLICIT_TEMPLATE_TYPE(T)) { ... } // #if defined BOOST_NO_EXPLICIT_FUNCTION_TEMPLATE_ARGUMENTS # include "boost/type.hpp" # include "boost/non_type.hpp" # define BOOST_EXPLICIT_TEMPLATE_TYPE(t) boost::type<t>* = 0 # define BOOST_EXPLICIT_TEMPLATE_TYPE_SPEC(t) boost::type<t>* # define BOOST_EXPLICIT_TEMPLATE_NON_TYPE(t, v) boost::non_type<t, v>* = 0 # define BOOST_EXPLICIT_TEMPLATE_NON_TYPE_SPEC(t, v) boost::non_type<t, v>* # define BOOST_APPEND_EXPLICIT_TEMPLATE_TYPE(t) \ , BOOST_EXPLICIT_TEMPLATE_TYPE(t) # define BOOST_APPEND_EXPLICIT_TEMPLATE_TYPE_SPEC(t) \ , BOOST_EXPLICIT_TEMPLATE_TYPE_SPEC(t) # define BOOST_APPEND_EXPLICIT_TEMPLATE_NON_TYPE(t, v) \ , BOOST_EXPLICIT_TEMPLATE_NON_TYPE(t, v) # define BOOST_APPEND_EXPLICIT_TEMPLATE_NON_TYPE_SPEC(t, v) \ , BOOST_EXPLICIT_TEMPLATE_NON_TYPE_SPEC(t, v) #else // no workaround needed: expand to nothing # define BOOST_EXPLICIT_TEMPLATE_TYPE(t) # define BOOST_EXPLICIT_TEMPLATE_TYPE_SPEC(t) # define BOOST_EXPLICIT_TEMPLATE_NON_TYPE(t, v) # define BOOST_EXPLICIT_TEMPLATE_NON_TYPE_SPEC(t, v) # define BOOST_APPEND_EXPLICIT_TEMPLATE_TYPE(t) # define BOOST_APPEND_EXPLICIT_TEMPLATE_TYPE_SPEC(t) # define BOOST_APPEND_EXPLICIT_TEMPLATE_NON_TYPE(t, v) # define BOOST_APPEND_EXPLICIT_TEMPLATE_NON_TYPE_SPEC(t, v) #endif // defined BOOST_NO_EXPLICIT_FUNCTION_TEMPLATE_ARGUMENTS // ---------------------------------------------------------------------------// // // Helper macro BOOST_STRINGIZE: // Converts the parameter X to a string after macro replacement // on X has been performed. // #define BOOST_STRINGIZE(X) BOOST_DO_STRINGIZE(X) #define BOOST_DO_STRINGIZE(X) #X // // Helper macro BOOST_JOIN: // The following piece of macro magic joins the two // arguments together, even when one of the arguments is // itself a macro (see 16.3.1 in C++ standard). The key // is that macro expansion of macro arguments does not // occur in BOOST_DO_JOIN2 but does in BOOST_DO_JOIN. // #define BOOST_JOIN( X, Y ) BOOST_DO_JOIN( X, Y ) #define BOOST_DO_JOIN( X, Y ) BOOST_DO_JOIN2(X,Y) #define BOOST_DO_JOIN2( X, Y ) X##Y // // Set some default values for compiler/library/platform names. // These are for debugging config setup only: // # ifndef BOOST_COMPILER # define BOOST_COMPILER "Unknown ISO C++ Compiler" # endif # ifndef BOOST_STDLIB # define BOOST_STDLIB "Unknown ISO standard library" # endif # ifndef BOOST_PLATFORM # if defined(unix) || defined(__unix) || defined(_XOPEN_SOURCE) \ || defined(_POSIX_SOURCE) # define BOOST_PLATFORM "Generic Unix" # else # define BOOST_PLATFORM "Unknown" # endif # endif #endif