Subject: [Boost-commit] svn:boost r78719 - in trunk: boost/chrono/io boost/chrono/io/utility libs/chrono/build libs/chrono/doc libs/chrono/test
From: vicente.botet_at_[hidden]
Date: 2012-05-28 09:54:23
Author: viboes
Date: 2012-05-28 09:54:22 EDT (Mon, 28 May 2012)
New Revision: 78719
URL: http://svn.boost.org/trac/boost/changeset/78719
Log:
Chrono: Updated chrono io utilities
Text files modified:
trunk/boost/chrono/io/ios_base_state.hpp | 21 +--
trunk/boost/chrono/io/utility/ios_base_state_ptr.hpp | 211 ++++++++++++++++++++++++++++-----------
trunk/libs/chrono/build/Jamfile.v2 | 6
trunk/libs/chrono/doc/chrono.qbk | 5
trunk/libs/chrono/test/Jamfile.v2 | 5
5 files changed, 167 insertions(+), 81 deletions(-)
Modified: trunk/boost/chrono/io/ios_base_state.hpp
==============================================================================
--- trunk/boost/chrono/io/ios_base_state.hpp (original)
+++ trunk/boost/chrono/io/ios_base_state.hpp 2012-05-28 09:54:22 EDT (Mon, 28 May 2012)
@@ -56,11 +56,10 @@
unsetf(uses_local);
}
};
-
namespace detail
{
namespace /**/ {
- xalloc_key_initializer_t<ios_flags<fmt_masks> > fmt_masks_xalloc_key_initializer;
+ xalloc_key_initializer<fmt_masks > fmt_masks_xalloc_key_initializer;
} // namespace
} // namespace detail
@@ -119,16 +118,14 @@
{
}
};
-
- } // detail
- namespace detail
- {
+ template<typename CharT>
+ struct ios_base_data {};
namespace /**/ {
- xalloc_key_initializer_t<ios_state_not_null_ptr<detail::ios_base_data_aux<char> > > ios_base_data_aux_xalloc_key_initializer;
- xalloc_key_initializer_t<ios_state_not_null_ptr<detail::ios_base_data_aux<wchar_t> > > wios_base_data_aux_xalloc_key_initializer;
+ xalloc_key_initializer<detail::ios_base_data<char> > ios_base_data_aux_xalloc_key_initializer;
+ xalloc_key_initializer<detail::ios_base_data<wchar_t> > wios_base_data_aux_xalloc_key_initializer;
#if BOOST_CHRONO_HAS_UNICODE_SUPPORT
- xalloc_key_initializer_t<ios_state_not_null_ptr<detail::ios_base_data_aux<char16_t> > > u16ios_base_data_aux_xalloc_key_initializer;
- xalloc_key_initializer_t<ios_state_not_null_ptr<detail::ios_base_data_aux<char32_t> > > u32ios_base_data_aux_xalloc_key_initializer;
+ xalloc_key_initializer<detail::ios_base_data<char16_t> > u16ios_base_data_aux_xalloc_key_initializer;
+ xalloc_key_initializer<detail::ios_base_data<char32_t> > u32ios_base_data_aux_xalloc_key_initializer;
#endif
} // namespace
} // namespace detail
@@ -136,14 +133,14 @@
template<typename CharT>
static inline std::basic_string<CharT> get_time_fmt(std::ios_base & ios)
{
- ios_state_not_null_ptr<detail::ios_base_data_aux<CharT> > ptr(ios);
+ ios_state_not_null_ptr<detail::ios_base_data<CharT>, detail::ios_base_data_aux<CharT> > ptr(ios);
return ptr->time_fmt;
}
template<typename CharT>
static inline void set_time_fmt(std::ios_base& ios, std::basic_string<
CharT> const& fmt)
{
- ios_state_not_null_ptr<detail::ios_base_data_aux<CharT> > ptr(ios);
+ ios_state_not_null_ptr<detail::ios_base_data<CharT>, detail::ios_base_data_aux<CharT> > ptr(ios);
ptr->time_fmt = fmt;
}
Modified: trunk/boost/chrono/io/utility/ios_base_state_ptr.hpp
==============================================================================
--- trunk/boost/chrono/io/utility/ios_base_state_ptr.hpp (original)
+++ trunk/boost/chrono/io/utility/ios_base_state_ptr.hpp 2012-05-28 09:54:22 EDT (Mon, 28 May 2012)
@@ -13,7 +13,6 @@
#include <ios>
#include <boost/assert.hpp>
-
/**
*
@@ -26,38 +25,47 @@
namespace detail
{
- template<typename T>
+ /**
+ * xalloc key holder.
+ */
+ template <typename T>
struct xalloc_key_holder
{
- static int value;
- static bool initialized;
+ static int value; //< the xalloc value associated to T.
+ static bool initialized; //< whether the value has been initialized or not.
};
- template<typename T>
+ template <typename T>
int xalloc_key_holder<T>::value = 0;
- template<typename T>
+ template <typename T>
bool xalloc_key_holder<T>::initialized = false;
- template<typename T>
- struct xalloc_key_initializer_t
- {
- xalloc_key_initializer_t()
- {
- if (!xalloc_key_holder<T>::initialized)
- {
- xalloc_key_holder<T>::value = std::ios_base::xalloc();
- xalloc_key_holder<T>::initialized = true;
- }
- }
- };
}
-
+ /**
+ * xalloc key initialiazer.
+ *
+ * Declare a static variable of this type to ensure that the xalloc_key_holder<T> is initialized correctly.
+ */
+ template <typename T>
+ struct xalloc_key_initializer
+ {
+ xalloc_key_initializer()
+ {
+ std::cout << __FILE__ << ":" << __LINE__ << std::endl;
+ if (!detail::xalloc_key_holder<T>::initialized)
+ {
+ detail::xalloc_key_holder<T>::value = std::ios_base::xalloc();
+ detail::xalloc_key_holder<T>::initialized = true;
+ std::cout << __FILE__ << ":" << __LINE__ << " " << detail::xalloc_key_holder<T>::value <<std::endl;
+ }
+ }
+ };
/**
* @c ios_state_ptr is a smart pointer to a ios_base specific state.
*/
- template<typename T>
+ template <typename Final, typename T>
class ios_state_ptr
{
public:
@@ -73,16 +81,21 @@
explicit ios_state_ptr(std::ios_base& ios) :
ios_(ios)
{
+ std::cout << __FILE__ << ":" << __LINE__ << std::endl;
+
}
+ /**
+ * Nothing to do as xalloc index can not be removed.
+ */
~ios_state_ptr()
{
}
/**
- * @Effects Allocates the index if not already done
+ * @Effects Allocates the index if not already done.
* Registers the callback responsible of maintaining the state pointer coherency, if not already done.
* Retrieves the associated ios pointer
- * @return the retrieved pointer.
+ * @return the retrieved pointer statically casted to const.
*/
T const* get() const BOOST_NOEXCEPT
{
@@ -94,6 +107,12 @@
}
return static_cast<const T*> (pw);
}
+ /**
+ * @Effects Allocates the index if not already done.
+ * Registers the callback responsible of maintaining the state pointer coherency, if not already done.
+ * Retrieves the associated ios pointer
+ * @return the retrieved pointer.
+ */
T * get() BOOST_NOEXCEPT
{
register_once(index(), ios_);
@@ -108,10 +127,14 @@
* @Effects as if @c return get();
* @return the retrieved pointer.
*/
- T * operator->() BOOST_NOEXCEPT
+ T * operator->()BOOST_NOEXCEPT
{
return get();
}
+ /**
+ * @Effects as if @c return get();
+ * @return the retrieved pointer.
+ */
T const * operator->() const BOOST_NOEXCEPT
{
return get();
@@ -126,6 +149,11 @@
{
return *get();
}
+ /**
+ * @Effects as if @c return *get();
+ * @return a reference to the retrieved state.
+ * @Remark The behavior is undefined if @c get()==0.
+ */
T const & operator *() const BOOST_NOEXCEPT
{
return *get();
@@ -135,7 +163,7 @@
* @Effects reset the current pointer after storing in a temporary variable the pointer to the current state.
* @return the stored state pointer.
*/
- T * release()BOOST_NOEXCEPT
+ T * release() BOOST_NOEXCEPT
{
T const* f = get();
reset();
@@ -147,7 +175,7 @@
* @param new_ptr the new pointer.
* @Effects deletes the current state and replace it with the new one.
*/
- void reset(T* new_ptr=0) BOOST_NOEXCEPT
+ void reset(T* new_ptr = 0)BOOST_NOEXCEPT
{
register_once(index(), ios_);
void*& pw = ios_.pword(index());
@@ -155,16 +183,27 @@
pw = new_ptr;
}
- //explicit
- /**
- * Explicit conversion to bool.
- */
- operator bool() const BOOST_NOEXCEPT
- {
- return get()!=0;
- }
+#if defined(BOOST_NO_EXPLICIT_CONVERSION_OPERATORS)
+ typedef T* (ios_state_ptr::*bool_type)();
+ operator bool_type() const BOOST_NOEXCEPT
+ {
+ return (get()!=0)?&ios_state_ptr::release:0;
+ }
+ bool operator!() const BOOST_NOEXCEPT
+ {
+ return (get()==0)?&ios_state_ptr::release:0;
+ }
+#else
+ /**
+ * Explicit conversion to bool.
+ */
+ explicit operator bool() const BOOST_NOEXCEPT
+ {
+ return get()!=0;
+ }
+#endif
- std::ios_base& getios() BOOST_NOEXCEPT
+ std::ios_base& getios()BOOST_NOEXCEPT
{
return ios_;
}
@@ -172,10 +211,16 @@
{
return ios_;
}
+ /**
+ * Implicit conversion to the ios_base
+ */
operator std::ios_base&() BOOST_NOEXCEPT
{
return ios_;
}
+ /**
+ * Implicit conversion to the ios_base const
+ */
operator std::ios_base&() const BOOST_NOEXCEPT
{
return ios_;
@@ -222,7 +267,7 @@
static inline int index()
{
- return detail::xalloc_key_holder<ios_state_ptr<T> >::value;
+ return detail::xalloc_key_holder<Final>::value;
}
static inline void register_once(int indx, std::ios_base& ios)
@@ -235,25 +280,29 @@
}
}
-
protected:
std::ios_base& ios_;
+ //static detail::xalloc_key_initializer<Final> xalloc_key_initializer_;
+
};
+ //template <typename Final, typename T>
+ //detail::xalloc_key_initializer<Final> ios_state_ptr<Final,T>::xalloc_key_initializer_;
+
/**
* @c ios_state_not_null_ptr is a non null variant of @c ios_state_ptr.
* @tparm T
- * @Requires Must be DefaultConstructible and HeapAllocatable
+ * @Requires @c T must be @c DefaultConstructible and @c HeapAllocatable
*/
- template<typename T>
- class ios_state_not_null_ptr : public ios_state_ptr<T>
+ template <typename Final, typename T>
+ class ios_state_not_null_ptr: public ios_state_ptr<Final, T>
{
- typedef ios_state_ptr<T> base_type;
+ typedef ios_state_ptr<Final, T> base_type;
public:
explicit ios_state_not_null_ptr(std::ios_base& ios) :
- ios_state_ptr<T>(ios)
+ base_type(ios)
{
- if (this->get()==0)
+ if (this->get() == 0)
{
this->base_type::reset(new T());
}
@@ -262,7 +311,7 @@
{
}
- void reset(T* new_value)BOOST_NOEXCEPT
+ void reset(T* new_value) BOOST_NOEXCEPT
{
BOOST_ASSERT(new_value!=0);
this->base_type::reset(new_value);
@@ -270,60 +319,92 @@
};
-
-/**
- *
- *
- *
- */
- template<typename Base>
+ /**
+ * This class is useful to associate some flags to an std::ios_base.
+ */
+ template <typename Final>
class ios_flags
{
public:
+ /**
+ *
+ * @param ios the associated std::ios_base.
+ * @Postcondition <c>flags()==0</c>
+ */
explicit ios_flags(std::ios_base& ios) :
ios_(ios)
{
}
- //ios_state_ptr(std::ios_base ios, void (*cleanup_function)(T*));
~ios_flags()
{
}
+ /**
+ * @Returns The format control information.
+ */
long flags() const BOOST_NOEXCEPT
{
return value();
}
- long flags(long v) BOOST_NOEXCEPT
+
+ /**
+ * @param v the new bit mask.
+ * @Postcondition <c>v == flags()</c>.
+ * @Returns The previous value of @c flags().
+ */
+ long flags(long v)BOOST_NOEXCEPT
{
long tmp = flags();
ref() = v;
return tmp;
}
+ /**
+ * @param v the new value
+ * @Effects: Sets @c v in @c flags().
+ * @Returns: The previous value of @c flags().
+ */
long setf(long v)
{
- long tmp = value();
- ref() |= v;
- return tmp;
+ long tmp = value();
+ ref() |= v;
+ return tmp;
}
+ /**
+ * @param mask the bit mask to clear.
+ * @Effects: Clears @c mask in @c flags().
+ */
void unsetf(long mask)
{
- ref() &= ~mask;
+ ref() &= ~mask;
}
+ /**
+ *
+ * @param v
+ * @param mask
+ * @Effects: Clears @c mask in @c flags(), sets <c>v & mask</c> in @c flags().
+ * @Returns: The previous value of flags().
+ */
long setf(long v, long mask)
{
- long tmp = value();
- unsetf(mask);
- ref() |= v & mask;
- return tmp;
+ long tmp = value();
+ unsetf(mask);
+ ref() |= v & mask;
+ return tmp;
}
- operator std::ios_base&() BOOST_NOEXCEPT
+ /**
+ * implicit conversion to the @c ios_base
+ */
+ operator std::ios_base&()BOOST_NOEXCEPT
{
return ios_;
}
+ /**
+ * implicit conversion to the @c ios_base const
+ */
operator std::ios_base const&() const BOOST_NOEXCEPT
{
return ios_;
@@ -333,17 +414,21 @@
{
return ios_.iword(index());
}
- long& ref() BOOST_NOEXCEPT
+ long& ref()BOOST_NOEXCEPT
{
return ios_.iword(index());
}
static inline int index()
{
- return detail::xalloc_key_holder<ios_flags<Base> >::value;
+ return detail::xalloc_key_holder<Final>::value;
}
std::ios_base& ios_;
+ //static detail::xalloc_key_initializer<Final> xalloc_key_initializer_;
+
};
+ //template <typename Final>
+ //detail::xalloc_key_initializer<Final> ios_flags<Final>::xalloc_key_initializer_;
} // namespace chrono
} // namespace boost
Modified: trunk/libs/chrono/build/Jamfile.v2
==============================================================================
--- trunk/libs/chrono/build/Jamfile.v2 (original)
+++ trunk/libs/chrono/build/Jamfile.v2 2012-05-28 09:54:22 EDT (Mon, 28 May 2012)
@@ -26,8 +26,6 @@
#<define>BOOST_COMMON_TYPE_USES_ARRAY_ASSERT
#<define>BOOST_RATIO_USES_ARRAY_ASSERT
#<define>BOOST_CHRONO_USES_ARRAY_ASSERT
- #<toolset>sun:<define>BOOST_COMMON_TYPE_DONT_USE_TYPEOF
- #<toolset>sun:<define>BOOST_TYPEOF_EMULATION
<toolset>sun:<define>__typeof__=__typeof__
<define>BOOST_SYSTEM_NO_DEPRECATED
#<toolset>gcc-3.4.4:<linkflags>--enable-auto-import
@@ -72,8 +70,8 @@
#<define>BOOST_COMMON_TYPE_USES_ARRAY_ASSERT
#<define>BOOST_RATIO_USES_ARRAY_ASSERT
#<define>BOOST_CHRONO_USES_ARRAY_ASSERT
- #<toolset>sun:<define>BOOST_COMMON_TYPE_DONT_USE_TYPEOF
- #<toolset>sun:<define>BOOST_TYPEOF_EMULATION
+ #<toolset>vacpp:<define>BOOST_COMMON_TYPE_DONT_USE_TYPEOF
+ <toolset>vacpp:<define>BOOST_TYPEOF_EMULATION
<toolset>sun:<define>__typeof__=__typeof__
<define>BOOST_SYSTEM_NO_DEPRECATED
Modified: trunk/libs/chrono/doc/chrono.qbk
==============================================================================
--- trunk/libs/chrono/doc/chrono.qbk (original)
+++ trunk/libs/chrono/doc/chrono.qbk 2012-05-28 09:54:22 EDT (Mon, 28 May 2012)
@@ -598,7 +598,8 @@
[heading Building Boost.Chrono ]
[/=================================]
-__Boost_Chrono__ can be configured as a header-only library. When __BOOST_CHRONO_HEADER_ONLY is defined the Boost.Chrono is a header-only library. Otherwise is not a header only library and you need to compile it and build the library before use, for example using:
+__Boost_Chrono__ can be configured as a header-only library. When __BOOST_CHRONO_HEADER_ONLY is defined the Boost.Chrono is a header-only library.
+Otherwise is not a header only library and you need to compile it and build the library before use, for example using:
bjam libs/chrono/build
@@ -1456,7 +1457,7 @@
2011-09-15 14:36:59.325132 -0400
-Note that `system_clock::time_point` itself is neither UTC, nor the local time. However in practice, `system_clock::time_point` is a count of ticks beyond some epoch which is synchronized with UTC. So as a mobile computer moves across time zones, the time zone traversal does not impact the value of a `system_clock::time_point` produced by `system_clock::now()v. And it is only in formatting it for human consumption that one can choose UTC or the local time zone. C and POSIX treat `time_t` just as __Boost_Chrono treats `system_clock::time_point`:
+Note that `system_clock::time_point` itself is neither UTC, nor the local time. However in practice, `system_clock::time_point` is a count of ticks beyond some epoch which is synchronized with UTC. So as a mobile computer moves across time zones, the time zone traversal does not impact the value of a `system_clock::time_point` produced by `system_clock::now()`. And it is only in formatting it for human consumption that one can choose UTC or the local time zone. C and POSIX treat `time_t` just as __Boost_Chrono treats `system_clock::time_point`:
tm* gmtime(const time_t* timer) -> UTC
tm* localtime(const time_t* timer) -> local time
Modified: trunk/libs/chrono/test/Jamfile.v2
==============================================================================
--- trunk/libs/chrono/test/Jamfile.v2 (original)
+++ trunk/libs/chrono/test/Jamfile.v2 2012-05-28 09:54:22 EDT (Mon, 28 May 2012)
@@ -480,3 +480,8 @@
[ chrono-run win32_test.cpp ]
;
+ test-suite "ts"
+ :
+ #[ chrono-run test_xx.cpp ]
+ ;
+