feedc0de/boost_mpl
1
0
Fork 0
forked from boostorg/mpl
Code Pull Requests Activity

portability patch for sunpro on little-endian platforms

Browse Source 
[SVN r52579]
This commit is contained in:
Eric Niebler
2009-04-24 15:23:40 +00:00
parent dfc596a7bf
commit 58be5a2bd5
1 changed files with 33 additions and 10 deletions
Download Patch File Download Diff File Expand all files Collapse all files

23
include/boost/mpl/string.hpp
View File

@@ -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>
@@ -51,9 +52,29 @@ namespace boost { namespace mpl
// 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)
#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))))
@@ -69,6 +90,8 @@ namespace boost { namespace mpl
#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;