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Merge pull request #23 from boostorg/feature/constexpr

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Make error_code and error_condition constexpr, as proposed in https://cplusplus.github.io/LWG/issue2992
This commit is contained in:
Peter Dimov
2018-05-04 15:06:41 +03:00
committed by GitHub
parent a9bb21507a d1f3d3b349
commit 2b1aa524d9
6 changed files with 338 additions and 114 deletions
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3
.travis.yml
View File

@ -202,6 +202,7 @@ matrix:
apt:
packages:
- clang-4.0
- libstdc++-4.9-dev
sources:
- ubuntu-toolchain-r-test
- llvm-toolchain-trusty-4.0
@ -213,6 +214,7 @@ matrix:
apt:
packages:
- clang-5.0
- libstdc++-4.9-dev
sources:
- ubuntu-toolchain-r-test
- llvm-toolchain-trusty-5.0
@ -224,6 +226,7 @@ matrix:
apt:
packages:
- clang-5.0
- libstdc++-4.9-dev
sources:
- ubuntu-toolchain-r-test
- llvm-toolchain-trusty-5.0

108
include/boost/system/detail/error_code.ipp
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@ -35,45 +35,22 @@
//--------------------------------------------------------------------------------------//
namespace boost
{
namespace system
{
namespace system
{
namespace detail
{
// standard error categories -------------------------------------------------------//
class generic_error_category : public error_category
{
public:
generic_error_category(){}
const char * name() const BOOST_SYSTEM_NOEXCEPT;
std::string message( int ev ) const;
};
class system_error_category : public error_category
{
public:
system_error_category(){}
const char * name() const BOOST_SYSTEM_NOEXCEPT;
std::string message( int ev ) const;
error_condition default_error_condition( int ev ) const BOOST_SYSTEM_NOEXCEPT;
};
#ifdef BOOST_ERROR_CODE_HEADER_ONLY
# define BOOST_SYSTEM_INLINE inline
# define BOOST_SYSTEM_DECL_ inline
#else
# define BOOST_SYSTEM_INLINE
# define BOOST_SYSTEM_DECL_ BOOST_SYSTEM_DECL
#endif
// generic_error_category implementation ---------------------------------//
BOOST_SYSTEM_INLINE const char * generic_error_category::name() const BOOST_SYSTEM_NOEXCEPT
{
return "generic";
}
BOOST_SYSTEM_INLINE std::string generic_error_category::message( int ev ) const
BOOST_SYSTEM_DECL_ std::string generic_error_category::message( int ev ) const
{
using namespace boost::system::errc;
#if defined(__PGI)
@ -166,12 +143,7 @@ namespace detail
}
// system_error_category implementation --------------------------------------------//
BOOST_SYSTEM_INLINE const char * system_error_category::name() const BOOST_SYSTEM_NOEXCEPT
{
return "system";
}
BOOST_SYSTEM_INLINE error_condition system_error_category::default_error_condition( int ev ) const
BOOST_SYSTEM_DECL_ error_condition system_error_category::default_error_condition( int ev ) const
BOOST_SYSTEM_NOEXCEPT
{
using namespace boost::system::errc;
@ -376,13 +348,13 @@ namespace detail
# if !defined( BOOST_WINDOWS_API )
BOOST_SYSTEM_INLINE std::string system_error_category::message( int ev ) const
BOOST_SYSTEM_DECL_ std::string system_error_category::message( int ev ) const
{
return generic_category().message( ev );
}
# else
BOOST_SYSTEM_INLINE std::string system_error_category::message( int ev ) const
BOOST_SYSTEM_DECL_ std::string system_error_category::message( int ev ) const
{
#if defined(UNDER_CE) || BOOST_PLAT_WINDOWS_RUNTIME || defined(BOOST_NO_ANSI_APIS)
std::wstring buf(128, wchar_t());
@ -461,7 +433,7 @@ namespace detail
}
# endif
#undef BOOST_SYSTEM_INLINE
#undef BOOST_SYSTEM_DECL_
} // namespace detail
@ -474,23 +446,51 @@ namespace detail
// address for comparison purposes
# endif
# ifdef BOOST_ERROR_CODE_HEADER_ONLY
# define BOOST_SYSTEM_LINKAGE inline
# else
# define BOOST_SYSTEM_LINKAGE BOOST_SYSTEM_DECL
# endif
#if defined(BOOST_ERROR_CODE_HEADER_ONLY)
BOOST_SYSTEM_LINKAGE const error_category & system_category() BOOST_SYSTEM_NOEXCEPT
{
static const detail::system_error_category system_category_const;
return system_category_const;
}
// defined in error_code.hpp
BOOST_SYSTEM_LINKAGE const error_category & generic_category() BOOST_SYSTEM_NOEXCEPT
{
static const detail::generic_error_category generic_category_const;
return generic_category_const;
}
#elif defined(BOOST_SYSTEM_HAS_CONSTEXPR)
namespace detail
{
BOOST_SYSTEM_REQUIRE_CONST_INIT BOOST_SYSTEM_DECL system_error_category system_category_instance;
BOOST_SYSTEM_REQUIRE_CONST_INIT BOOST_SYSTEM_DECL generic_error_category generic_category_instance;
BOOST_SYSTEM_DECL const error_category & system_category_ncx() BOOST_SYSTEM_NOEXCEPT
{
return system_category_instance;
}
BOOST_SYSTEM_DECL const error_category & generic_category_ncx() BOOST_SYSTEM_NOEXCEPT
{
return generic_category_instance;
}
} // namespace detail
#else
namespace detail
{
BOOST_SYSTEM_DECL const error_category & system_category_ncx() BOOST_SYSTEM_NOEXCEPT
{
static const detail::system_error_category system_category_instance;
return system_category_instance;
}
BOOST_SYSTEM_DECL const error_category & generic_category_ncx() BOOST_SYSTEM_NOEXCEPT
{
static const detail::generic_error_category generic_category_instance;
return generic_category_instance;
}
} // namespace detail
#endif
} // namespace system
} // namespace system
} // namespace boost

270
include/boost/system/error_code.hpp
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@ -39,6 +39,21 @@
#define BOOST_SYSTEM_NOEXCEPT BOOST_NOEXCEPT
#endif
#if !defined(BOOST_NO_CXX14_CONSTEXPR)
# define BOOST_SYSTEM_HAS_CONSTEXPR
#endif
#if defined(__GNUC__) && (__GNUC__ == 7 || __GNUC__ == 8) && __cplusplus >= 201700L
// https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83835
# undef BOOST_SYSTEM_HAS_CONSTEXPR
#endif
#if defined(BOOST_SYSTEM_HAS_CONSTEXPR)
# define BOOST_SYSTEM_CONSTEXPR constexpr
#else
# define BOOST_SYSTEM_CONSTEXPR
#endif
namespace boost
{
namespace system
@ -186,31 +201,6 @@ namespace boost
// --------------------------------------------------------------------------------//
class error_category;
// predefined error categories ---------------------------------------------------//
#ifdef BOOST_ERROR_CODE_HEADER_ONLY
inline const error_category & system_category() BOOST_SYSTEM_NOEXCEPT;
inline const error_category & generic_category() BOOST_SYSTEM_NOEXCEPT;
#else
BOOST_SYSTEM_DECL const error_category & system_category() BOOST_SYSTEM_NOEXCEPT;
BOOST_SYSTEM_DECL const error_category & generic_category() BOOST_SYSTEM_NOEXCEPT;
#endif
// deprecated synonyms ------------------------------------------------------------//
#ifdef BOOST_SYSTEM_ENABLE_DEPRECATED
inline const error_category & get_system_category() { return system_category(); }
inline const error_category & get_generic_category() { return generic_category(); }
inline const error_category & get_posix_category() { return generic_category(); }
static const error_category & posix_category BOOST_ATTRIBUTE_UNUSED
= generic_category();
static const error_category & errno_ecat BOOST_ATTRIBUTE_UNUSED
= generic_category();
static const error_category & native_ecat BOOST_ATTRIBUTE_UNUSED
= system_category();
#endif
#ifdef BOOST_MSVC
#pragma warning(push)
// 'this' : used in base member initializer list
@ -233,7 +223,7 @@ namespace boost
public:
explicit std_category( boost::system::error_category const * pc ): pc_( pc )
BOOST_SYSTEM_CONSTEXPR explicit std_category( boost::system::error_category const * pc ): pc_( pc )
{
}
@ -259,7 +249,7 @@ namespace boost
public:
error_category() BOOST_SYSTEM_NOEXCEPT: std_cat_( this ) {}
BOOST_SYSTEM_CONSTEXPR error_category() BOOST_SYSTEM_NOEXCEPT: std_cat_( this ) {}
operator std::error_category const & () const BOOST_SYSTEM_NOEXCEPT
{
@ -284,7 +274,7 @@ namespace boost
public:
explicit std_category( boost::system::error_category const * pc ): pc_( pc )
BOOST_SYSTEM_CONSTEXPR explicit std_category( boost::system::error_category const * pc ): pc_( pc )
{
}
@ -310,7 +300,7 @@ namespace boost
public:
error_category() BOOST_SYSTEM_NOEXCEPT: std_cat_( this ) {}
BOOST_SYSTEM_CONSTEXPR error_category() BOOST_SYSTEM_NOEXCEPT: std_cat_( this ) {}
#endif
@ -326,19 +316,183 @@ namespace boost
BOOST_SYSTEM_NOEXCEPT;
inline virtual bool equivalent( const error_code & code,
int condition ) const BOOST_SYSTEM_NOEXCEPT;
bool operator==(const error_category & rhs) const BOOST_SYSTEM_NOEXCEPT
{ return this == &rhs; }
bool operator!=(const error_category & rhs) const BOOST_SYSTEM_NOEXCEPT
{ return this != &rhs; }
bool operator<( const error_category & rhs ) const BOOST_SYSTEM_NOEXCEPT
{ return std::less<const error_category*>()( this, &rhs ); }
};
BOOST_SYSTEM_CONSTEXPR inline bool operator==( const error_category & lhs,
const error_category & rhs ) BOOST_SYSTEM_NOEXCEPT
{ return &lhs == &rhs; }
BOOST_SYSTEM_CONSTEXPR inline bool operator!=( const error_category & lhs,
const error_category & rhs ) BOOST_SYSTEM_NOEXCEPT
{ return &lhs != &rhs; }
inline bool operator<( const error_category & lhs,
const error_category & rhs ) BOOST_SYSTEM_NOEXCEPT
{ return std::less<const error_category*>()( &lhs, &rhs ); }
#ifdef BOOST_MSVC
#pragma warning(pop)
#endif
// predefined error categories ---------------------------------------------------//
namespace detail
{
#ifdef BOOST_ERROR_CODE_HEADER_ONLY
# define BOOST_SYSTEM_DECL_
#else
# define BOOST_SYSTEM_DECL_ BOOST_SYSTEM_DECL
#endif
class generic_error_category: public error_category
{
public:
// clang++ 3.8 and below: initialization of const object
// requires a user-provided default constructor
BOOST_SYSTEM_CONSTEXPR generic_error_category() BOOST_SYSTEM_NOEXCEPT
{
}
const char * name() const BOOST_SYSTEM_NOEXCEPT
{
return "generic";
}
BOOST_SYSTEM_DECL_ std::string message( int ev ) const;
};
class system_error_category: public error_category
{
public:
BOOST_SYSTEM_CONSTEXPR system_error_category() BOOST_SYSTEM_NOEXCEPT
{
}
const char * name() const BOOST_SYSTEM_NOEXCEPT
{
return "system";
}
BOOST_SYSTEM_DECL_ std::string message( int ev ) const;
BOOST_SYSTEM_DECL_ error_condition default_error_condition( int ev ) const BOOST_SYSTEM_NOEXCEPT;
};
#undef BOOST_SYSTEM_DECL_
} // namespace detail
#define BOOST_SYSTEM_REQUIRE_CONST_INIT
#if defined(__has_cpp_attribute)
#if __has_cpp_attribute(clang::require_constant_initialization)
# undef BOOST_SYSTEM_REQUIRE_CONST_INIT
# define BOOST_SYSTEM_REQUIRE_CONST_INIT [[clang::require_constant_initialization]]
#endif
#endif
#if defined(BOOST_ERROR_CODE_HEADER_ONLY)
# if defined(BOOST_SYSTEM_HAS_CONSTEXPR)
namespace detail
{
template<class T> struct cat_holder
{
static system_error_category system_category_instance;
static generic_error_category generic_category_instance;
};
template<class T> BOOST_SYSTEM_REQUIRE_CONST_INIT system_error_category cat_holder<T>::system_category_instance;
template<class T> BOOST_SYSTEM_REQUIRE_CONST_INIT generic_error_category cat_holder<T>::generic_category_instance;
} // namespace detail
constexpr const error_category & system_category() BOOST_SYSTEM_NOEXCEPT
{
return detail::cat_holder<void>::system_category_instance;
}
constexpr const error_category & generic_category() BOOST_SYSTEM_NOEXCEPT
{
return detail::cat_holder<void>::generic_category_instance;
}
# else
inline const error_category & system_category() BOOST_SYSTEM_NOEXCEPT
{
static const detail::system_error_category system_category_instance;
return system_category_instance;
}
inline const error_category & generic_category() BOOST_SYSTEM_NOEXCEPT
{
static const detail::generic_error_category generic_category_instance;
return generic_category_instance;
}
# endif
#elif defined(BOOST_SYSTEM_HAS_CONSTEXPR)
namespace detail
{
extern system_error_category system_category_instance;
extern generic_error_category generic_category_instance;
} // namespace detail
constexpr const error_category & system_category() BOOST_SYSTEM_NOEXCEPT
{
return detail::system_category_instance;
}
constexpr const error_category & generic_category() BOOST_SYSTEM_NOEXCEPT
{
return detail::generic_category_instance;
}
#else
namespace detail
{
BOOST_SYSTEM_DECL const error_category & system_category_ncx() BOOST_SYSTEM_NOEXCEPT;
BOOST_SYSTEM_DECL const error_category & generic_category_ncx() BOOST_SYSTEM_NOEXCEPT;
} // namespace detail
inline const error_category & system_category() BOOST_SYSTEM_NOEXCEPT
{
return detail::system_category_ncx();
}
inline const error_category & generic_category() BOOST_SYSTEM_NOEXCEPT
{
return detail::generic_category_ncx();
}
#endif
// deprecated synonyms ------------------------------------------------------------//
#ifdef BOOST_SYSTEM_ENABLE_DEPRECATED
inline const error_category & get_system_category() { return system_category(); }
inline const error_category & get_generic_category() { return generic_category(); }
inline const error_category & get_posix_category() { return generic_category(); }
static const error_category & posix_category BOOST_ATTRIBUTE_UNUSED
= generic_category();
static const error_category & errno_ecat BOOST_ATTRIBUTE_UNUSED
= generic_category();
static const error_category & native_ecat BOOST_ATTRIBUTE_UNUSED
= system_category();
#endif
// class error_condition ---------------------------------------------------------//
// error_conditions are portable, error_codes are system or library specific
@ -348,8 +502,8 @@ namespace boost
public:
// constructors:
error_condition() BOOST_SYSTEM_NOEXCEPT : m_val(0), m_cat(&generic_category()) {}
error_condition( int val, const error_category & cat ) BOOST_SYSTEM_NOEXCEPT
BOOST_SYSTEM_CONSTEXPR error_condition() BOOST_SYSTEM_NOEXCEPT : m_val(0), m_cat(&generic_category()) {}
BOOST_SYSTEM_CONSTEXPR error_condition( int val, const error_category & cat ) BOOST_SYSTEM_NOEXCEPT
: m_val(val), m_cat(&cat) {}
template <class ErrorConditionEnum>
@ -362,7 +516,7 @@ namespace boost
// modifiers:
void assign( int val, const error_category & cat ) BOOST_SYSTEM_NOEXCEPT
BOOST_SYSTEM_CONSTEXPR void assign( int val, const error_category & cat ) BOOST_SYSTEM_NOEXCEPT
{
m_val = val;
m_cat = &cat;
@ -377,20 +531,20 @@ namespace boost
return *this;
}
void clear() BOOST_SYSTEM_NOEXCEPT
BOOST_SYSTEM_CONSTEXPR void clear() BOOST_SYSTEM_NOEXCEPT
{
m_val = 0;
m_cat = &generic_category();
}
// observers:
int value() const BOOST_SYSTEM_NOEXCEPT { return m_val; }
const error_category & category() const BOOST_SYSTEM_NOEXCEPT { return *m_cat; }
BOOST_SYSTEM_CONSTEXPR int value() const BOOST_SYSTEM_NOEXCEPT { return m_val; }
BOOST_SYSTEM_CONSTEXPR const error_category & category() const BOOST_SYSTEM_NOEXCEPT { return *m_cat; }
std::string message() const { return m_cat->message(value()); }
#if !defined(BOOST_NO_CXX11_EXPLICIT_CONVERSION_OPERATORS)
explicit operator bool() const BOOST_SYSTEM_NOEXCEPT // true if error
BOOST_SYSTEM_CONSTEXPR explicit operator bool() const BOOST_SYSTEM_NOEXCEPT // true if error
{
return m_val != 0;
}
@ -400,12 +554,12 @@ namespace boost
typedef void (*unspecified_bool_type)();
static void unspecified_bool_true() {}
operator unspecified_bool_type() const BOOST_SYSTEM_NOEXCEPT // true if error
BOOST_SYSTEM_CONSTEXPR operator unspecified_bool_type() const BOOST_SYSTEM_NOEXCEPT // true if error
{
return m_val == 0 ? 0 : unspecified_bool_true;
}
bool operator!() const BOOST_SYSTEM_NOEXCEPT // true if no error
BOOST_SYSTEM_CONSTEXPR bool operator!() const BOOST_SYSTEM_NOEXCEPT // true if no error
{
return m_val == 0;
}
@ -415,7 +569,7 @@ namespace boost
// relationals:
// the more symmetrical non-member syntax allows enum
// conversions work for both rhs and lhs.
inline friend bool operator==( const error_condition & lhs,
BOOST_SYSTEM_CONSTEXPR inline friend bool operator==( const error_condition & lhs,
const error_condition & rhs ) BOOST_SYSTEM_NOEXCEPT
{
return lhs.m_cat == rhs.m_cat && lhs.m_val == rhs.m_val;
@ -458,8 +612,8 @@ namespace boost
public:
// constructors:
error_code() BOOST_SYSTEM_NOEXCEPT : m_val(0), m_cat(&system_category()) {}
error_code( int val, const error_category & cat ) BOOST_SYSTEM_NOEXCEPT
BOOST_SYSTEM_CONSTEXPR error_code() BOOST_SYSTEM_NOEXCEPT : m_val(0), m_cat(&system_category()) {}
BOOST_SYSTEM_CONSTEXPR error_code( int val, const error_category & cat ) BOOST_SYSTEM_NOEXCEPT
: m_val(val), m_cat(&cat) {}
template <class ErrorCodeEnum>
@ -471,7 +625,7 @@ namespace boost
}
// modifiers:
void assign( int val, const error_category & cat ) BOOST_SYSTEM_NOEXCEPT
BOOST_SYSTEM_CONSTEXPR void assign( int val, const error_category & cat ) BOOST_SYSTEM_NOEXCEPT
{
m_val = val;
m_cat = &cat;
@ -485,22 +639,22 @@ namespace boost
return *this;
}
void clear() BOOST_SYSTEM_NOEXCEPT
BOOST_SYSTEM_CONSTEXPR void clear() BOOST_SYSTEM_NOEXCEPT
{
m_val = 0;
m_cat = &system_category();
}
// observers:
int value() const BOOST_SYSTEM_NOEXCEPT { return m_val; }
const error_category & category() const BOOST_SYSTEM_NOEXCEPT { return *m_cat; }
BOOST_SYSTEM_CONSTEXPR int value() const BOOST_SYSTEM_NOEXCEPT { return m_val; }
BOOST_SYSTEM_CONSTEXPR const error_category & category() const BOOST_SYSTEM_NOEXCEPT { return *m_cat; }
error_condition default_error_condition() const BOOST_SYSTEM_NOEXCEPT
{ return m_cat->default_error_condition(value()); }
std::string message() const { return m_cat->message(value()); }
#if !defined(BOOST_NO_CXX11_EXPLICIT_CONVERSION_OPERATORS)
explicit operator bool() const BOOST_SYSTEM_NOEXCEPT // true if error
BOOST_SYSTEM_CONSTEXPR explicit operator bool() const BOOST_SYSTEM_NOEXCEPT // true if error
{
return m_val != 0;
}
@ -510,12 +664,12 @@ namespace boost
typedef void (*unspecified_bool_type)();
static void unspecified_bool_true() {}
operator unspecified_bool_type() const BOOST_SYSTEM_NOEXCEPT // true if error
BOOST_SYSTEM_CONSTEXPR operator unspecified_bool_type() const BOOST_SYSTEM_NOEXCEPT // true if error
{
return m_val == 0 ? 0 : unspecified_bool_true;
}
bool operator!() const BOOST_SYSTEM_NOEXCEPT // true if no error
BOOST_SYSTEM_CONSTEXPR bool operator!() const BOOST_SYSTEM_NOEXCEPT // true if no error
{
return m_val == 0;
}
@ -523,7 +677,7 @@ namespace boost
#endif
// relationals:
inline friend bool operator==( const error_code & lhs,
BOOST_SYSTEM_CONSTEXPR inline friend bool operator==( const error_code & lhs,
const error_code & rhs ) BOOST_SYSTEM_NOEXCEPT
// the more symmetrical non-member syntax allows enum
// conversions work for both rhs and lhs.
@ -596,13 +750,13 @@ namespace boost
{
// non-member functions ------------------------------------------------//
inline bool operator!=( const error_code & lhs,
BOOST_SYSTEM_CONSTEXPR inline bool operator!=( const error_code & lhs,
const error_code & rhs ) BOOST_SYSTEM_NOEXCEPT
{
return !(lhs == rhs);
}
inline bool operator!=( const error_condition & lhs,
BOOST_SYSTEM_CONSTEXPR inline bool operator!=( const error_condition & lhs,
const error_condition & rhs ) BOOST_SYSTEM_NOEXCEPT
{
return !(lhs == rhs);

1
test/Jamfile.v2
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@ -126,6 +126,7 @@ else
[ run single_instance_test.cpp single_instance_lib1 single_instance_lib2 : : : <link>shared : single_instance_lib_shared ]
[ system-run before_main_test.cpp ]
[ run-fail throws_assign_fail.cpp ]
[ system-run- constexpr_test.cpp ]
;
# Quick (CI) test

68
test/constexpr_test.cpp Normal file
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@ -0,0 +1,68 @@
// Copyright 2018 Peter Dimov.
// Distributed under the Boost Software License, Version 1.0.
#include <boost/system/error_code.hpp>
#include <boost/core/lightweight_test.hpp>
#include <boost/config/pragma_message.hpp>
#include <boost/static_assert.hpp>
#include <boost/config.hpp>
#include <boost/config/workaround.hpp>
#if !defined(BOOST_SYSTEM_HAS_CONSTEXPR)
BOOST_PRAGMA_MESSAGE("Skipping constexpr test, BOOST_SYSTEM_HAS_CONSTEXPR isn't defined")
int main() {}
#else
using namespace boost::system;
constexpr error_code e1( 1, system_category() );
BOOST_STATIC_ASSERT( e1.value() == 1 );
BOOST_STATIC_ASSERT( e1.category() == system_category() );
BOOST_STATIC_ASSERT( e1 );
BOOST_STATIC_ASSERT( e1 == e1 );
constexpr error_code e2( 2, generic_category() );
BOOST_STATIC_ASSERT( e2.value() == 2 );
BOOST_STATIC_ASSERT( e2.category() == generic_category() );
BOOST_STATIC_ASSERT( e2 );
BOOST_STATIC_ASSERT( e2 == e2 );
#if !BOOST_WORKAROUND(BOOST_GCC, < 80000)
BOOST_STATIC_ASSERT( e1 != e2 );
#endif
constexpr error_code e3;
BOOST_STATIC_ASSERT( e3.value() == 0 );
BOOST_STATIC_ASSERT( e3.category() == system_category() );
BOOST_STATIC_ASSERT( !e3 );
BOOST_STATIC_ASSERT( e3 == e3 );
#if !BOOST_WORKAROUND(BOOST_GCC, < 80000)
BOOST_STATIC_ASSERT( e1 != e3 );
#endif
int main()
{
error_code e1_( 1, system_category() );
BOOST_TEST_EQ( e1, e1_ );
error_code e2_( 2, generic_category() );
BOOST_TEST_EQ( e2, e2_ );
error_code e3_;
BOOST_TEST_EQ( e3, e3_ );
return boost::report_errors();
}
#endif

2
test/std_mismatch_test.cpp
View File

@ -38,7 +38,6 @@ static void test_generic_category()
std::error_category const & st = bt;
BOOST_TEST_CSTR_EQ( bt.name(), st.name() );
BOOST_TEST_EQ( bt.name(), st.name() );
}
static void test_system_category()
@ -47,7 +46,6 @@ static void test_system_category()
std::error_category const & st = bt;
BOOST_TEST_CSTR_EQ( bt.name(), st.name() );
BOOST_TEST_EQ( bt.name(), st.name() );
}
int main()