Subject: [Boost-commit] svn:boost r52579 - trunk/boost/mpl
From: eric_at_[hidden]
Date: 2009-04-24 11:23:41
Author: eric_niebler
Date: 2009-04-24 11:23:40 EDT (Fri, 24 Apr 2009)
New Revision: 52579
URL: http://svn.boost.org/trac/boost/changeset/52579
Log:
portability patch for sunpro on little-endian platforms
Text files modified:
trunk/boost/mpl/string.hpp | 43 ++++++++++++++++++++++++++++++---------
1 files changed, 33 insertions(+), 10 deletions(-)
Modified: trunk/boost/mpl/string.hpp
==============================================================================
--- trunk/boost/mpl/string.hpp (original)
+++ trunk/boost/mpl/string.hpp 2009-04-24 11:23:40 EDT (Fri, 24 Apr 2009)
@@ -19,6 +19,7 @@
#include <boost/config.hpp>
#include <boost/detail/workaround.hpp>
+#include <boost/detail/endian.hpp>
#include <boost/mpl/limits/string.hpp>
#include <boost/mpl/if.hpp>
#include <boost/mpl/char.hpp>
@@ -51,23 +52,45 @@
// Low-level bit-twiddling is done by macros. Any implementation-defined behavior of
// multi-character literals should be localized to these macros.
+
#define BOOST_MPL_MULTICHAR_LENGTH(c) \
(std::size_t)((c>0xffffff)+(c>0xffff)+(c>0xff)+1)
- #define BOOST_MPL_MULTICHAR_AT(c,i) \
- (char)(0xff&(c>>(8*(BOOST_MPL_MULTICHAR_LENGTH(c)-(std::size_t)(i)-1))))
+ #if defined(BOOST_LITTLE_ENDIAN) && defined(__SUNPRO_CC)
+
+ #define BOOST_MPL_MULTICHAR_AT(c,i) \
+ (char)(0xff&(c>>(8*(std::size_t)(i))))
+
+ #define BOOST_MPL_MULTICHAR_PUSH_BACK(c,i) \
+ ((((unsigned char)(i))<<(BOOST_MPL_MULTICHAR_LENGTH(c)*8))|(c))
+
+ #define BOOST_MPL_MULTICHAR_PUSH_FRONT(c,i) \
+ (((c)<<8)|(unsigned char)(i))
+
+ #define BOOST_MPL_MULTICHAR_POP_BACK(c) \
+ (((1<<((BOOST_MPL_MULTICHAR_LENGTH(c)-1)*8))-1)&(c))
+
+ #define BOOST_MPL_MULTICHAR_POP_FRONT(c) \
+ ((c)>>8)
+
+ #else
+
+ #define BOOST_MPL_MULTICHAR_AT(c,i) \
+ (char)(0xff&(c>>(8*(BOOST_MPL_MULTICHAR_LENGTH(c)-(std::size_t)(i)-1))))
+
+ #define BOOST_MPL_MULTICHAR_PUSH_BACK(c,i) \
+ (((c)<<8)|(unsigned char)(i))
- #define BOOST_MPL_MULTICHAR_PUSH_BACK(c,i) \
- (((c)<<8)|(unsigned char)(i))
+ #define BOOST_MPL_MULTICHAR_PUSH_FRONT(c,i) \
+ ((((unsigned char)(i))<<(BOOST_MPL_MULTICHAR_LENGTH(c)*8))|(c))
- #define BOOST_MPL_MULTICHAR_PUSH_FRONT(c,i) \
- ((((unsigned char)(i))<<(BOOST_MPL_MULTICHAR_LENGTH(c)*8))|(c))
+ #define BOOST_MPL_MULTICHAR_POP_BACK(c) \
+ ((c)>>8)
- #define BOOST_MPL_MULTICHAR_POP_BACK(c) \
- ((c)>>8)
+ #define BOOST_MPL_MULTICHAR_POP_FRONT(c) \
+ (((1<<((BOOST_MPL_MULTICHAR_LENGTH(c)-1)*8))-1)&(c))
- #define BOOST_MPL_MULTICHAR_POP_FRONT(c) \
- (((1<<((BOOST_MPL_MULTICHAR_LENGTH(c)-1)*8))-1)&(c))
+ #endif
struct string_tag;
struct string_iterator_tag;