The compiler fails to compile a nested class that has a dependent - base class: + base class:
template<typename T> struct foo : { @@ -341,8 +341,9 @@Template value parameters cannot have a dependent type, for example: +
-template<class T, typename T::type value> +template<class T, typename T::type value> class X { ... };@@ -421,7 +422,7 @@
The compiler does not perform function template ordering or its - function template ordering is incorrect. + function template ordering is incorrect.
// #1 template<class T> void f(T); @@ -1313,7 +1314,7 @@The compiler does not allow a void function to return the result - of calling another void function. + of calling another void function.
void f() {} void g() { return f(); } @@ -2917,12 +2918,12 @@Some compilers don't support the use of
constexpr. This macro expands to nothing on those compilers, andconstexprelsewhere. For example, - when defining a constexpr function or constructor replace: + when defining a constexpr function or constructor replace:constexpr tuple();- with: + with:
BOOST_CONSTEXPR tuple();@@ -2942,11 +2943,12 @@ This macro expands toconston those compilers, andconstexprelsewhere. For example, when defining const expr variables replace: +static constexpr UIntType xor_mask = a;- with: + with:
static BOOST_CONSTEXPR_OR_CONST UIntType xor_mask = a;@@ -2964,12 +2966,12 @@This is a shortcut for
static BOOST_CONSTEXPR_OR_CONSTFor - example, when defining const expr variables replace: + example, when defining const expr variables replace:static constexpr UIntType xor_mask = a;- with: + with:
BOOST_STATIC_CONSTEXPR UIntType xor_mask = a;@@ -2980,6 +2982,7 @@+ +
BOOST_NOEXCEPT BOOST_NOEXCEPT_IF(Predicate) @@ -2996,6 +2999,7 @@+
#define BOOST_NOEXCEPT #define BOOST_NOEXCEPT_IF(Predicate) @@ -3011,6 +3015,7 @@+
#define BOOST_NOEXCEPT noexcept #define BOOST_NOEXCEPT_IF(Predicate) noexcept((Predicate)) @@ -3061,12 +3066,12 @@This macro is used where a compiler specific workaround is required that is not otherwise described by one of the other Boost.Config - macros. To use the macro you must first + macros. To use the macro you must first
#include <boost/detail/workaround.hpp>- usage is then: + usage is then:
#if BOOST_WORKAROUND(MACRONAME, CONDITION) // workaround code goes here... @@ -3109,12 +3114,12 @@ Sometimes you have a function name with the same name as a C macro, for example "min" and "max" member functions, in which case one can prevent the function being expanded as a - macro using: + macro using:someclass.min BOOST_PREVENT_MACRO_SUBSTITUTION(arg1, arg2);- The following also works in most, but not all, contexts: + The following also works in most, but not all, contexts:
(someclass.max)(arg1, arg2);@@ -3209,14 +3214,14 @@ 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. For example - instead of: + instead of:struct foo{ static const int value = 2; };- use: + use:
struct foo{ BOOST_STATIC_CONSTANT(int, value = 2); @@ -3249,7 +3254,7 @@Some compilers silently "fold" different function template instantiations if some of the template parameters don't appear - in the function parameter list. For instance: + in the function parameter list. For instance:
#include <iostream> #include <ostream> @@ -3273,7 +3278,7 @@ incorrectly outputs2 2 double doubleon VC++ 6. These macros, to be used in the function parameter list, fix the problem without effects on the calling syntax. For instance, - in the case above write: + in the case above write:template <int n> void f(BOOST_EXPLICIT_TEMPLATE_NON_TYPE(int, n)) { ... } @@ -3383,6 +3388,40 @@+ @@ -3783,7 +3822,7 @@ RTTI. Examples include class for objects that will be thrown as exceptions or used in dynamic_casts, across shared library boundaries. For example, a header-only exception class might - look like this: + look like this:+ ++
+BOOST_FORCEINLINE++ ++ This macro can be used in place of the
+inline+ keyword to instruct the compiler that a function should always + be inlined. Overuse of this macro can lead to significant bloat, + while good use can increase performance in certain cases, such + as computation-intensive code built through generative programming + techniques. ++ Usage example: +
+template<class T> +BOOST_FORCEINLINE T& f(T& t) +{ + return t; +} +++
++ Note that use of this macro can lead to cryptic error messages + with some compilers. Consider defining it to
+inline+ before including the Boost.Config header in order to be able to + debug errors more easily. +class BOOST_SYMBOL_VISIBLE my_exception : public std::runtime_error { ... };@@ -3821,7 +3860,7 @@ #if defined(BOOST_ALL_DYN_LINK) || defined(BOOST_FOO_DYN_LINK) # if defined(BOOST_FOO_SOURCE) # define BOOST_FOO_DECL BOOST_SYMBOL_EXPORT -# else +# else # define BOOST_FOO_DECL BOOST_SYMBOL_IMPORT # endif #else @@ -3843,7 +3882,7 @@ boost/libs/foo/src/foo.cpp#define BOOST_FOO_SOURCE -#include <boost/foo/foo.hpp> +#include <boost/foo/foo.hpp> ... void BOOST_FOO_DECL f() { diff --git a/doc/html/boost_config/guidelines_for_boost_authors.html b/doc/html/boost_config/guidelines_for_boost_authors.html index 1079480d..cbc7dbce 100644 --- a/doc/html/boost_config/guidelines_for_boost_authors.html +++ b/doc/html/boost_config/guidelines_for_boost_authors.html @@ -3,7 +3,7 @@Guidelines for Boost Authors - + diff --git a/doc/html/boost_config/rationale.html b/doc/html/boost_config/rationale.html index f92d7993..d62510c1 100644 --- a/doc/html/boost_config/rationale.html +++ b/doc/html/boost_config/rationale.html @@ -3,7 +3,7 @@Rationale - + diff --git a/doc/html/index.html b/doc/html/index.html index 9c7fb0b1..9dc678b1 100644 --- a/doc/html/index.html +++ b/doc/html/index.html @@ -3,7 +3,7 @@Boost.Config - + @@ -29,7 +29,7 @@Copyright © 2001-2007 Beman Dawes, Vesa Karvonen, John Maddock
-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)
@@ -277,7 +277,7 @@ export CXXFLAGS="-Aa -DAportable -D__HPACC_THREAD_SAFE_RB_TREE \ -DRWSTD_MULTI_THREAD -DRW_MULTI_THREAD -D_REENTRANT -D_THREAD_SAFE" export LDFLAGS="-DAportable" -export LIBS="-lpthread" +export LIBS="-lpthread" sh ./configure@@ -949,7 +949,7 @@
- + Last revised: October 10, 2011 at 14:43:27 GMT
Last revised: October 11, 2011 at 17:21:29 GMT
diff --git a/doc/macro_reference.qbk b/doc/macro_reference.qbk index 2ed236a2..c5dad035 100644 --- a/doc/macro_reference.qbk +++ b/doc/macro_reference.qbk @@ -889,6 +889,26 @@ the arguments is itself a macro (see 16.3.1 in C++ standard). This is normally used to create a mangled name in combination with a predefined macro such a \_\_LINE__. ]] +[[`BOOST_FORCEINLINE`][ +This macro can be used in place of the `inline` keyword to instruct the compiler +that a function should always be inlined. +Overuse of this macro can lead to significant bloat, while good use can increase +performance in certain cases, such as computation-intensive code built through +generative programming techniques. + +Usage example: +`` + template+ BOOST_FORCEINLINE T& f(T& t) + { + return t; + } +`` + +Note that use of this macro can lead to cryptic error messages with some compilers. +Consider defining it to `inline` before including the Boost.Config header in order to be +able to debug errors more easily. +]] ] [endsect] diff --git a/include/boost/config/suffix.hpp b/include/boost/config/suffix.hpp index c2bbcb70..72a0dc95 100644 --- a/include/boost/config/suffix.hpp +++ b/include/boost/config/suffix.hpp @@ -688,5 +688,17 @@ namespace std{ using ::type_info; } #define BOOST_STATIC_CONSTEXPR static BOOST_CONSTEXPR_OR_CONST +// BOOST_FORCEINLINE ---------------------------------------------// +// Macro to use in place of 'inline' to force a function to be inline +#if !defined(BOOST_FORCEINLINE) +# if defined(_MSC_VER) +# define BOOST_FORCEINLINE __forceinline +# elif defined(__GNUC__) && __GNUC__ > 3 +# define BOOST_FORCEINLINE inline __attribute__ ((always_inline)) +# else +# define BOOST_FORCEINLINE inline +# endif +#endif + #endif diff --git a/test/config_info.cpp b/test/config_info.cpp index c0612bfc..3877f001 100644 --- a/test/config_info.cpp +++ b/test/config_info.cpp @@ -1111,6 +1111,8 @@ void print_boost_macros() PRINT_MACRO(BOOST_CONSTEXPR); PRINT_MACRO(BOOST_CONSTEXPR_OR_CONST); PRINT_MACRO(BOOST_STATIC_CONSTEXPR); + PRINT_MACRO(BOOST_NOEXCEPT); + PRINT_MACRO(BOOST_FORCEINLINE); } void print_separator()