boost/dynamic_bitset
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Add support to dynamic_bitset for compiling with exceptions disabled by using BOOST_TRY/BOOST_CATCH.

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This applies the patch from bug https://svn.boost.org/trac/boost/ticket/9939
This commit is contained in:
Boleslaw Ciesielski
2014-05-16 12:05:43 -04:00
parent eb6004d98d
commit ba0ba59f24
1 changed files with 18 additions and 13 deletions
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31
include/boost/dynamic_bitset/dynamic_bitset.hpp
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@@ -42,6 +42,7 @@
#include "boost/pending/lowest_bit.hpp"
#include "boost/static_assert.hpp"
#include "boost/utility/addressof.hpp"
#include "boost/detail/no_exceptions_support.hpp"
namespace boost {
@@ -1179,7 +1180,7 @@ to_ulong() const
// Check for overflows. This may be a performance burden on very
// large bitsets but is required by the specification, sorry
if (find_next(ulong_width - 1) != npos)
throw std::overflow_error("boost::dynamic_bitset::to_ulong overflow");
BOOST_THROW_EXCEPTION(std::overflow_error("boost::dynamic_bitset::to_ulong overflow"));
// Ok, from now on we can be sure there's no "on" bit
@@ -1500,7 +1501,7 @@ operator<<(std::basic_ostream<Ch, Tr>& os,
const Ch zero = BOOST_DYNAMIC_BITSET_WIDEN_CHAR(fac, '0');
const Ch one = BOOST_DYNAMIC_BITSET_WIDEN_CHAR(fac, '1');
try {
BOOST_TRY {
typedef typename dynamic_bitset<Block, Alloc>::size_type bitset_size_type;
typedef basic_streambuf<Ch, Tr> buffer_type;
@@ -1547,13 +1548,14 @@ operator<<(std::basic_ostream<Ch, Tr>& os,
os.width(0);
} catch (...) { // see std 27.6.1.1/4
} BOOST_CATCH (...) { // see std 27.6.1.1/4
bool rethrow = false;
try { os.setstate(ios_base::failbit); } catch (...) { rethrow = true; }
BOOST_TRY { os.setstate(ios_base::failbit); } BOOST_CATCH (...) { rethrow = true; } BOOST_CATCH_END
if (rethrow)
throw;
BOOST_RETHROW;
}
BOOST_CATCH_END
}
if(err != ok)
@@ -1612,13 +1614,14 @@ operator>>(std::istream& is, dynamic_bitset<Block, Alloc>& b)
break; // non digit character
else {
try {
BOOST_TRY {
appender.do_append(char(c) == '1');
}
catch(...) {
BOOST_CATCH(...) {
is.setstate(std::ios::failbit); // assume this can't throw
throw;
BOOST_RETHROW;
}
BOOST_CATCH_END
}
} // for
@@ -1659,7 +1662,7 @@ operator>>(std::basic_istream<Ch, Tr>& is, dynamic_bitset<Block, Alloc>& b)
const Ch one = BOOST_DYNAMIC_BITSET_WIDEN_CHAR(fac, '1');
b.clear();
try {
BOOST_TRY {
typename bitset_type::bit_appender appender(b);
basic_streambuf <Ch, Tr> * buf = is.rdbuf();
typename Tr::int_type c = buf->sgetc();
@@ -1682,7 +1685,7 @@ operator>>(std::basic_istream<Ch, Tr>& is, dynamic_bitset<Block, Alloc>& b)
} // for
}
catch (...) {
BOOST_CATCH (...) {
// catches from stream buf, or from vector:
//
// bits_stored bits have been extracted and stored, and
@@ -1690,13 +1693,15 @@ operator>>(std::basic_istream<Ch, Tr>& is, dynamic_bitset<Block, Alloc>& b)
// append to the underlying vector (out of memory)
bool rethrow = false; // see std 27.6.1.1/4
try { is.setstate(ios_base::badbit); }
catch(...) { rethrow = true; }
BOOST_TRY { is.setstate(ios_base::badbit); }
BOOST_CATCH(...) { rethrow = true; }
BOOST_CATCH_END
if (rethrow)
throw;
BOOST_RETHROW;
}
BOOST_CATCH_END
}
is.width(0);