[Boost-commit] svn:boost r42706 - trunk/boost/iostreams/detail/config

From: technews_at_[hidden]
Date: 2008-01-12 15:19:43

Author: turkanis
Date: 2008-01-12 15:19:42 EST (Sat, 12 Jan 2008)
New Revision: 42706
URL: http://svn.boost.org/trac/boost/changeset/42706

Log:
corrected use of feature detection macros for AIX; simplified implementation slightly; updated docs
Text files modified: 
   trunk/boost/iostreams/detail/config/rtl.hpp |    25 +++++++++++++------------               
   1 files changed, 13 insertions(+), 12 deletions(-)

Modified: trunk/boost/iostreams/detail/config/rtl.hpp
==============================================================================
--- trunk/boost/iostreams/detail/config/rtl.hpp	(original)
+++ trunk/boost/iostreams/detail/config/rtl.hpp	2008-01-12 15:19:42 EST (Sat, 12 Jan 2008)
@@ -22,22 +22,20 @@
 #include <boost/iostreams/detail/config/windows_posix.hpp>
 
 // Handle open, close, read, and write
-#if defined(__BORLANDC__)
+#ifdef __BORLANDC__
 # define BOOST_IOSTREAMS_RTL(x) BOOST_JOIN(_rtl_, x)
+#elif defined BOOST_IOSTREAMS_WINDOWS
+# define BOOST_IOSTREAMS_RTL(x) BOOST_JOIN(_, x)
 #else
-# if defined(BOOST_IOSTREAMS_WINDOWS) && !defined(__CYGWIN__)
-#  define BOOST_IOSTREAMS_RTL(x) BOOST_JOIN(_, x)
-# else
-#  define BOOST_IOSTREAMS_RTL(x) ::x
-# endif
+# define BOOST_IOSTREAMS_RTL(x) ::x  // Distinguish from member function named x
 #endif
 #define BOOST_IOSTREAMS_FD_OPEN   BOOST_IOSTREAMS_RTL(open)
 #define BOOST_IOSTREAMS_FD_CLOSE  BOOST_IOSTREAMS_RTL(close)
 #define BOOST_IOSTREAMS_FD_READ   BOOST_IOSTREAMS_RTL(read)
 #define BOOST_IOSTREAMS_FD_WRITE  BOOST_IOSTREAMS_RTL(write)
 
-// Handle lseek, ftruncate, stat, and off_t
-#if defined(BOOST_IOSTREAMS_WINDOWS) && !defined(__CYGWIN__)
+// Handle lseek, off_t, ftruncate, and stat
+#ifdef BOOST_IOSTREAMS_WINDOWS
 # if defined(BOOST_MSVC) || defined(__MSVCRT__) // MSVC, MinGW
 #  define BOOST_IOSTREAMS_FD_SEEK    _lseeki64
 #  define BOOST_IOSTREAMS_FD_OFFSET  __int64
@@ -48,14 +46,17 @@
 #else // Non-windows
 # if defined(_LARGEFILE64_SOURCE) && \
          (!defined(_FILE_OFFSET_BITS) || _FILE_OFFSET_BITS != 64) || \
-     defined(__IBMCPP__) && !defined(__64BIT__) && !defined(_LARGE_FILE) || \
-     defined(BOOST_IOSTREAMS_HAS_LSEEK64)
+     defined(__IBMCPP__) && !defined(_LARGE_FILES) || \
+     defined(BOOST_IOSTREAMS_HAS_LARGE_FILE_EXTENSIONS)
      /**/
-#  define BOOST_IOSTREAMS_FD_SEEK      lseek64  // Some GCC and IBM
+
+    /* Systems with transitional extensions for large file support */
+
+#  define BOOST_IOSTREAMS_FD_SEEK      lseek64
 #  define BOOST_IOSTREAMS_FD_TRUNCATE  ftruncate64
 #  define BOOST_IOSTREAMS_FD_STAT      stat64
 #  define BOOST_IOSTREAMS_FD_OFFSET    off64_t
-# else                                          // Cygwin, Darwin, ...
+# else
 #  define BOOST_IOSTREAMS_FD_SEEK      lseek
 #  define BOOST_IOSTREAMS_FD_TRUNCATE  ftruncate
 #  define BOOST_IOSTREAMS_FD_STAT      stat