[Stdcxx Wiki] Update of Cpp0x by EricLemings
Dear Wiki user,
You have subscribed to a wiki page or wiki category on Stdcxx Wiki for change
notification.
The following page has been changed by EricLemings:
http://wiki.apache.org/stdcxx/Cpp0x
The comment on the change is:
Transcribing general notes from a draft development plan written in March 2008.
--
+ = Development Plan =
+
+ The following development plans apply to 4.3.x series of releases leading up
to the 5.x major release tentatively scheduled sometime after the current C++
draft standard is ratified.
+
+ == Configuration ==
+
+ The release distribution(s) will provide a configuration option that allows
users to explicitly enable or disable support for C++0x library specifications
and extensions. In 4.3.x releases, C++0x support is disabled by default if the
option is not explicitly specified by the user.
+
+ If C++0x support is enabled, an additional configuration macro (or macros)
will be defined within the library that specifically indicates whether C++0x
specifications should be enabled. (The exact name of this macro and how and
where it is defined is unspecified for purposes of this document.)
+
+ == Affected Headers ==
+
+ New headers specified by the C++0x extensions will reside in the
{{{$TOPDIR/include}}} directory (where {{{$TOPDIR}}} indicates the source
distribution and/or installation directory) with the filenames specified by the
standard. (Note especially, there is no {{{std::tr1}}} namespace or associated
{{{tr1}}} directory.) Consequently, compiler search paths for header files are
unchanged.
+
+ The new headers specified by the C++0x draft standard are shown in the
following list:
+
+ ||tablestyle=width: 50%'''New C++0x Headers'''||
+ ||{{{type_traits}}}||{{{random}}}||{{{tuple}}}||
+ ||{{{array}}}||{{{unordered_set}}}||{{{unordered_map}}}||
+ ||{{{regex}}}||{{{ccomplex}}}||{{{complex.h}}}||
+ ||{{{cfenv}}}||{{{fenv.h}}}||{{{cinttypes}}}||
+ ||{{{inttypes.h}}}||{{{cstdbool}}}||{{{stdbool.h}}}||
+ ||{{{cstdint}}}||{{{stdint.h}}}||{{{ctgmath}}}||
+ ||{{{tgmath.h}}}|| || ||
+
+ Note, some of the new headers -- the C headers with a {{{.h}}} suffix -- are
actually required by ISO/IEC 9899:1999 (a.k.a. C99) and consequently specified
as part of the C++0x draft standard. While these headers are technically a
part of the C++ standard library, they do not fall within the scope of this
development plan.
+
+ Modified headers -- existing headers for which changes are mandated by the
standard -- will contain the appropriate conditional guards (utilizing the
configuration macro(s) specified above) to enable the implementation of
requirements specific to the C++0x draft standard. The modified headers
specified by the C++0x draft standard are shown in the following table:
+
+ ||tablestyle=width: 50%'''Modified C++0x Headers'''||
+ ||{{{functional}}}||{{{memory}}}||{{{utility}}}||
+ ||{{{complex}}}||{{{cctype}}}||{{{ctype.h}}}||
+ ||{{{cfloat}}}||{{{float.h}}}||{{{ios}}}||
+ ||{{{climits}}}||{{{limits.h}}}||{{{locale}}}||
+ ||{{{cmath}}}||{{{math.h}}}||{{{cstdarg}}}||
+ ||{{{stdarg.h}}}||{{{cstdio}}}||{{{cstdlib}}}||
+ ||{{{stdlib.h}}}||{{{ctime}}}||{{{wchar.h}}}||
+ ||{{{cwctype}}}||{{{wctype.h}}}|| ||
+
+ Note again, some of these headers -- the C headers in particular -- contain
normative changes specified by C99 and are thus outside the scope of this
development plan.
+
+ == Components ==
+
+ The new C++0x features are classified according to components shown in the
following list:
+
+ * General utilities library (Chapter 20, Clause [utilities])
+ * Tuples (Section 3, Clause [tuple])
+ * Type traits (Section 4, Clause [meta])
+ * Function objects (Section 5, Clause [function.objects])
+* Reference wrappers (Section 5.5, Clause [refwrap])
+ * Smart pointers (Section 6, Clause [memory])
+ * Numerical library (Chapter 26, Clause [numerics])
+ * Random number generation (Section 4, Clause [rand])
+ * Containers (Chapter 23, Clause [containers])
+ * Fixed-size arrays (Section 2.1, Clause [array])
+ * Unordered associative containers (Section 4, Clause [unord])
+ * Regular expressions (Chapter 28, Clause [re])
+
+ Note, this is not a complete list of C++0x features: these are only the
components that fall within the scope of this development plan.
+
+
= Online Resources =
- * [http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2005/n1836.pdf ISO/IEC
TR 19768: C++ Library Extensions TR1]. The normative specification.
- * [http://en.wikipedia.org/wiki/Technical_Report_1 Technical Report 1
(Wikipedia)]. Good overview of the TR1 extensions.
-
+ * [http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2005/n1836.pdf ISO/IEC
TR 19768: C++ Library Extensions TR1]. The original draft specification. (Now
obsolete since modifications have been made in the latest C++ draft standard.)
+ *
svn commit: r663333 - /stdcxx/site/download.html
Author: sebor Date: Wed Jun 4 11:10:08 2008 New Revision: 66 URL: http://svn.apache.org/viewvc?rev=66view=rev Log: 2008-06-04 Martin Sebor [EMAIL PROTECTED] * download.html (Searching the stdcxx Subversion Repository): Added links to Subversion search sites. Modified: stdcxx/site/download.html Modified: stdcxx/site/download.html URL: http://svn.apache.org/viewvc/stdcxx/site/download.html?rev=66r1=663332r2=66view=diff == --- stdcxx/site/download.html (original) +++ stdcxx/site/download.html Wed Jun 4 11:10:08 2008 @@ -141,6 +141,11 @@ /a /li li + a href=#svnsearch +Searching the stdcxx Subversion Repository + /a +/li +li a href=#svn Checking Out stdcxx Using the Subversion Client /a @@ -240,6 +245,29 @@ /ul /div !-- section -- +a name=svnsearch/a +h2 class=boxedSearching the stdcxx Subversion Repository/h2 +div class=section + p + +At least two online tools allow searching the stdcxx source code +repository in Subversion: + + p + ul +li + +a href=http://svnsearch.org/svnsearch/repos/ASF/search?path=stdcxx;SVNSearch/a +/li +li + +a href=http://fisheye6.atlassian.com/browse/stdcxx;FishEye/a +by a href=http://www.atlassian.com;Atlassian/a. + +/li + /ul +/div !-- section -- + a name=svn/a h2 class=boxedChecking Out Files Using the Subversion Client/h2 div class=section
[Stdcxx Wiki] Update of FloatingPoint by MartinSebor
Dear Wiki user, You have subscribed to a wiki page or wiki category on Stdcxx Wiki for change notification. The following page has been changed by MartinSebor: http://wiki.apache.org/stdcxx/FloatingPoint The comment on the change is: Added a heading and description. -- = WORK IN PROGRESS = + + = Floating Point Numbers, Infinities and NaNs = + + In preparation for resolving [http://issues.apache.org/jira/browse/STDCXX-51 STDCXX-51] this page details the platform-specific details describing infinities and NaNs produced as the result of certain floating point calculations, usually triggered by invalid operands. == libc symbols ==
svn commit: r663377 - in /stdcxx/branches/4.2.x: include/valarray src/valarray.cpp tests/numerics/26.class.gslice.cpp tests/regress/26.valarray.sub.stdcxx-955.cpp
Author: vitek
Date: Wed Jun 4 14:48:36 2008
New Revision: 663377
URL: http://svn.apache.org/viewvc?rev=663377view=rev
Log:
2008-06-04 Travis Vitek [EMAIL PROTECTED]
STDCXX-955
* include/valarray: Correctly calculate indices when the
length array contains a zero.
* src/valarray.cpp: Ditto.
* tests/numerics/26.class.gslice.cpp (make_array): Update to
handle empty strings or other poorly formatted input.
(get_array_size, next_index): Correctly calculate indices
when the slice length array contains a zero.
(test_gslice): Remove unnecessary line feed from assertion.
(run_test): Update degenerate testcase to match comment.
* tests/regress/26.valarray.sub.stdcxx-995.cpp: Add new
regression test.
Added:
stdcxx/branches/4.2.x/tests/regress/26.valarray.sub.stdcxx-955.cpp (with
props)
Modified:
stdcxx/branches/4.2.x/include/valarray
stdcxx/branches/4.2.x/src/valarray.cpp
stdcxx/branches/4.2.x/tests/numerics/26.class.gslice.cpp
Modified: stdcxx/branches/4.2.x/include/valarray
URL:
http://svn.apache.org/viewvc/stdcxx/branches/4.2.x/include/valarray?rev=663377r1=663376r2=663377view=diff
==
--- stdcxx/branches/4.2.x/include/valarray (original)
+++ stdcxx/branches/4.2.x/include/valarray Wed Jun 4 14:48:36 2008
@@ -2039,10 +2039,12 @@
if (_C_length.size () == 0)
return 0;
-_RWSTD_SIZE_T __inx = 1;
+_RWSTD_SIZE_T __inx = _C_length [0] != 0;
-for(_RWSTD_SIZE_T __i = 0; __i _C_length.size (); ++__i)
-__inx *= _C_length [__i];
+for(_RWSTD_SIZE_T __i = 0; __i _C_length.size (); ++__i) {
+if (_C_length [__i])
+__inx *= _C_length [__i];
+}
return __inx;
}
Modified: stdcxx/branches/4.2.x/src/valarray.cpp
URL:
http://svn.apache.org/viewvc/stdcxx/branches/4.2.x/src/valarray.cpp?rev=663377r1=663376r2=663377view=diff
==
--- stdcxx/branches/4.2.x/src/valarray.cpp (original)
+++ stdcxx/branches/4.2.x/src/valarray.cpp Wed Jun 4 14:48:36 2008
@@ -41,8 +41,12 @@
{
_RWSTD_SIZE_T __n = _C_length.size ();
-while (__n _C_r_length [__n - 1] == _C_length [__n - 1] - 1)
---__n;
+for (/**/; __n; --__n)
+{
+if ( _C_length [__n - 1]
+ _C_r_length [__n - 1] != _C_length [__n - 1] - 1)
+break;
+}
if (0 == __n) {
_C_reset= true;
Modified: stdcxx/branches/4.2.x/tests/numerics/26.class.gslice.cpp
URL:
http://svn.apache.org/viewvc/stdcxx/branches/4.2.x/tests/numerics/26.class.gslice.cpp?rev=663377r1=663376r2=663377view=diff
==
--- stdcxx/branches/4.2.x/tests/numerics/26.class.gslice.cpp (original)
+++ stdcxx/branches/4.2.x/tests/numerics/26.class.gslice.cpp Wed Jun 4
14:48:36 2008
@@ -35,25 +35,28 @@
static std::valarraystd::size_t
make_array (const char *s)
{
-if (0 == s)
-return std::valarraystd::size_t();
-
std::size_t buf [256];
-for (std::size_t i = 0; ; ++i) {
+std::size_t i = 0;
+while (s *s) {
char *end;
unsigned long val = std::strtoul (s, end, 10);
RW_ASSERT ('\0' == *end || ',' == *end);
-buf [i] = std::size_t (val);
+if (s == end)
+break;
+
+buf [i++] = std::size_t (val);
if ('\0' == *end)
-return std::valarraystd::size_t(buf, i + 1);
+break;
s = end + 1;
}
+
+return std::valarraystd::size_t(buf, i);
}
/**/
@@ -67,7 +70,8 @@
std::size_t asize = sizes.size () ? 1 : 0;
for (std::size_t i = 0; i != sizes.size (); ++i) {
-asize *= sizes [i];
+if (sizes [i])
+asize *= sizes [i];
}
return asize;
@@ -92,8 +96,11 @@
return start;
}
-while (inx factors [inx - 1] == asizes [inx - 1] - 1)
---inx;
+for (/**/; inx; --inx) {
+if ( asizes [inx - 1]
+ factors [inx - 1] != asizes [inx - 1] - 1)
+break;
+}
if (0 == inx) {
factors = 0;
@@ -156,12 +163,12 @@
if (maxinx indices [i])
maxinx = indices [i];
-std::valarraystd::size_t va (maxinx + 1);
+std::valarraystd::size_t va (indices.size () ? maxinx + 1 : 0);
for (std::size_t i = 0; i != va.size (); ++i)
va [i] = i;
for (int i = 0; i != 3; ++i) {
-// repeat each test three to verify that operator[](gslice)
+// repeat each test thrice to verify that operator[](gslice)
// doesn't change the observable state of its argument and
// that the same result is obtained for a copy of gslice
@@ -171,7 +178,7 @@
bool equal = array_slice.size () ==
[Stdcxx Wiki] Update of FloatingPoint by MartinSebor
Dear Wiki user, You have subscribed to a wiki page or wiki category on Stdcxx Wiki for change notification. The following page has been changed by MartinSebor: http://wiki.apache.org/stdcxx/FloatingPoint The comment on the change is: Added/corrected HP-UX and other libc symbols. -- The table below lists the public symbols defined on each platform for Infinity, Quiet NaN, and Signaling NaN. tablestyle=background-color:cornsilk;text-align:center'''libc symbols'''|| - ||rowstyle=background-color:lightgray || AIX || HP-UX || IRIX || Linux || Solaris || Tru64 UNIX || Windows || + ||rowstyle=background-color:lightgray || AIX || HP-UX || IRIX || Linux || Solaris || Tru64 UNIX || Windows || - || header||`float.h`||`float.h`|| N/A ||`math.h` ||`sunmath.h`||`float.h` || || - ||(Infinity ||`FLT_INF`, `DBL_INF`, `LDBL_INF` || || N/A || `INFINITY` ||`infinity()` ||`FLT_INFINITY`, `DBL_INFINITY`, `LDBL_INFINITY` || N/A || + ||( header ||`float.h` ||`math.h`|| N/A ||`math.h`||`sunmath.h`||`float.h` + ||(Infinity ||`INFINITY`, `FLT_INF`, `DBL_INF`, `LDBL_INF`||`INFINITY`|| N/A||`INFINITY`||`INFINITY`, `infinity()`||`FLT_INFINITY`, `DBL_INFINITY`, `LDBL_INFINITY`|| N/A|| - ||(Quiet NaN ||`FLT_QNAN`, `DBL_QNAN`, `LDBL_QNAN`|| || N/A || `nan()` ||`quiet_nan(long)`||`FLT_QNAN`, `DBL_QNAN`, `LDBL_QNAN` || N/A || + ||(Quiet NaN||`FLT_QNAN`, `DBL_QNAN`, `LDBL_QNAN` ^2^||`nan(const char*)` ^1^|| N/A ||`nan(const char*)` ^1^||`quiet_nan(long)` ^2^ ||`FLT_QNAN`, `DBL_QNAN`, `LDBL_QNAN` || N/A || ||(Signaling NaN ||`FLT_SNAN`, `DBL_SNAN`, `LDBL_SNAN`|| || N/A || N/A||`signaling_nan(long)`||`FLT_SNAN`, `DBL_SNAN`, `LDBL_SNAN` || N/A || + ^1^ Supports all signatures required by C99 and POSIX: `float nanf(const char*)`, `double nan(const char*)`, and `long double nanl(const char*)`. + + ^2^ Recent versions also support the C99 interface. == printf() formatting ==
svn commit: r663410 - /stdcxx/branches/4.2.x/tests/support/18.support.rtti.cpp
Author: vitek
Date: Wed Jun 4 16:15:07 2008
New Revision: 663410
URL: http://svn.apache.org/viewvc?rev=663410view=rev
Log:
2008-06-04 Travis Vitek [EMAIL PROTECTED]
STDCXX-872
* tests/support/18.support.rtti.cpp [__IBMCPP__]: Avoid
testing typeid() if rtti support is disabled.
Modified:
stdcxx/branches/4.2.x/tests/support/18.support.rtti.cpp
Modified: stdcxx/branches/4.2.x/tests/support/18.support.rtti.cpp
URL:
http://svn.apache.org/viewvc/stdcxx/branches/4.2.x/tests/support/18.support.rtti.cpp?rev=663410r1=663409r2=663410view=diff
==
--- stdcxx/branches/4.2.x/tests/support/18.support.rtti.cpp (original)
+++ stdcxx/branches/4.2.x/tests/support/18.support.rtti.cpp Wed Jun 4 16:15:07
2008
@@ -97,6 +97,13 @@
_RWSTD_UNUSED (p_name);
}
+#if defined (__IBMCPP__) !defined (__RTTI_TYPE_INFO__)
+
+rw_warn (0, 0, __LINE__,
+ not testing type_info; rtti is disabled);
+
+#else // !__IBMCPP__ || __RTTI_TYPE_INFO__
+
if (1) {
// exercise 18.5.1, class type_info functionality
D1 d1;
@@ -179,6 +186,8 @@
d1_name, d2_name);
}
+#endif // !__IBMCPP__ || __RTTI_TYPE_INFO__
+
if (1) {
// exercise 18.5.2, class bad_cast interface
