--- boost_1_57_0/boost/dynamic_bitset/dynamic_bitset.hpp	2014-06-25 21:27:29.000000000 +0200
+++ boost_1_57_0.patched/boost/dynamic_bitset/dynamic_bitset.hpp	2015-01-27 16:13:40.251831531 +0100
@@ -1427,10 +1427,8 @@
     // ships with gcc 2.95 has an exceptions() member function but
     // nothing is actually implemented; not even the class ios::failure.
 
-    using namespace std;
-
-    const ios::iostate ok = ios::goodbit;
-    ios::iostate err = ok;
+    const std::ios::iostate ok = std::ios::goodbit;
+    std::ios::iostate err = ok;
 
     if (os.opfx()) {
 
@@ -1443,13 +1441,13 @@
             || (bitsetsize_type) os.width() <= sz? 0 : os.width() - sz;
 
         const char fill_char = os.fill();
-        const ios::fmtflags adjustfield = os.flags() & ios::adjustfield;
+        const std::ios::fmtflags adjustfield = os.flags() & std::ios::adjustfield;
 
         // if needed fill at left; pad is decresed along the way
-        if (adjustfield != ios::left) {
+        if (std::ios::adjustfield != std::ios::left) {
             for (; 0 < npad; --npad)
                 if (fill_char != buf->sputc(fill_char)) {
-                    err |= ios::failbit;
+                    err |= std::ios::failbit;
                     break;
                 }
         }
@@ -1459,7 +1457,7 @@
             for (bitsetsize_type i = b.size(); 0 < i; --i) {
                 const char dig = b.test(i-1)? '1' : '0';
                 if (EOF == buf->sputc(dig)) {
-                    err |= ios::failbit;
+                    err |= std::ios::failbit;
                     break;
                 }
             }
@@ -1469,7 +1467,7 @@
             // if needed fill at right
             for (; 0 < npad; --npad) {
                 if (fill_char != buf->sputc(fill_char)) {
-                    err |= ios::failbit;
+                    err |= std::ios::failbit;
                     break;
                 }
             }
@@ -1493,12 +1491,10 @@
            const dynamic_bitset<Block, Alloc>& b)
 {
 
-    using namespace std;
-
-    const ios_base::iostate ok = ios_base::goodbit;
-    ios_base::iostate err = ok;
+    const std::ios_base::iostate ok = std::ios_base::goodbit;
+    std::ios_base::iostate err = ok;
 
-    typename basic_ostream<Ch, Tr>::sentry cerberos(os);
+    typename std::basic_ostream<Ch, Tr>::sentry cerberos(os);
     if (cerberos) {
 
         BOOST_DYNAMIC_BITSET_CTYPE_FACET(Ch, fac, os.getloc());
@@ -1508,21 +1504,21 @@
         BOOST_TRY {
 
             typedef typename dynamic_bitset<Block, Alloc>::size_type bitset_size_type;
-            typedef basic_streambuf<Ch, Tr> buffer_type;
+            typedef std::basic_streambuf<Ch, Tr> buffer_type;
 
             buffer_type * buf = os.rdbuf();
             // careful: os.width() is signed (and can be < 0)
             const bitset_size_type width = (os.width() <= 0) ? 0 : static_cast<bitset_size_type>(os.width());
-            streamsize npad = (width <= b.size()) ? 0 : width - b.size();
+            std::streamsize npad = (width <= b.size()) ? 0 : width - b.size();
 
             const Ch fill_char = os.fill();
-            const ios_base::fmtflags adjustfield = os.flags() & ios_base::adjustfield;
+            const std::ios_base::fmtflags adjustfield = os.flags() & std::ios_base::adjustfield;
 
             // if needed fill at left; pad is decreased along the way
-            if (adjustfield != ios_base::left) {
+            if (adjustfield != std::ios_base::left) {
                 for (; 0 < npad; --npad)
                     if (Tr::eq_int_type(Tr::eof(), buf->sputc(fill_char))) {
-                          err |= ios_base::failbit;
+                          err |= std::ios_base::failbit;
                           break;
                     }
             }
@@ -1533,7 +1529,7 @@
                     typename buffer_type::int_type
                         ret = buf->sputc(b.test(i-1)? one : zero);
                     if (Tr::eq_int_type(Tr::eof(), ret)) {
-                        err |= ios_base::failbit;
+                        err |= std::ios_base::failbit;
                         break;
                     }
                 }
@@ -1543,7 +1539,7 @@
                 // if needed fill at right
                 for (; 0 < npad; --npad) {
                     if (Tr::eq_int_type(Tr::eof(), buf->sputc(fill_char))) {
-                        err |= ios_base::failbit;
+                        err |= std::ios_base::failbit;
                         break;
                     }
                 }
@@ -1554,7 +1550,7 @@
 
         } BOOST_CATCH (...) { // see std 27.6.1.1/4
             bool rethrow = false;
-            BOOST_TRY { os.setstate(ios_base::failbit); } BOOST_CATCH (...) { rethrow = true; } BOOST_CATCH_END
+            BOOST_TRY { os.setstate(std::ios_base::failbit); } BOOST_CATCH (...) { rethrow = true; } BOOST_CATCH_END
 
             if (rethrow)
                 BOOST_RETHROW;
@@ -1647,17 +1643,15 @@
 operator>>(std::basic_istream<Ch, Tr>& is, dynamic_bitset<Block, Alloc>& b)
 {
 
-    using namespace std;
-
     typedef dynamic_bitset<Block, Alloc> bitset_type;
     typedef typename bitset_type::size_type size_type;
 
-    const streamsize w = is.width();
+    const std::streamsize w = is.width();
     const size_type limit = 0 < w && static_cast<size_type>(w) < b.max_size()?
                                          static_cast<size_type>(w) : b.max_size();
 
-    ios_base::iostate err = ios_base::goodbit;
-    typename basic_istream<Ch, Tr>::sentry cerberos(is); // skips whitespaces
+    std::ios_base::iostate err = std::ios_base::goodbit;
+    typename std::basic_istream<Ch, Tr>::sentry cerberos(is); // skips whitespaces
     if(cerberos) {
 
         // in accordance with prop. resol. of lib DR 303 [last checked 4 Feb 2004]
@@ -1668,12 +1662,12 @@
         b.clear();
         BOOST_TRY {
             typename bitset_type::bit_appender appender(b);
-            basic_streambuf <Ch, Tr> * buf = is.rdbuf();
+            std::basic_streambuf <Ch, Tr> * buf = is.rdbuf();
             typename Tr::int_type c = buf->sgetc();
             for( ; appender.get_count() < limit; c = buf->snextc() ) {
 
                 if (Tr::eq_int_type(Tr::eof(), c)) {
-                    err |= ios_base::eofbit;
+                    err |= std::ios_base::eofbit;
                     break;
                 }
                 else {
@@ -1697,7 +1691,7 @@
             // append to the underlying vector (out of memory)
 
             bool rethrow = false;   // see std 27.6.1.1/4
-            BOOST_TRY { is.setstate(ios_base::badbit); }
+            BOOST_TRY { is.setstate(std::ios_base::badbit); }
             BOOST_CATCH(...) { rethrow = true; }
             BOOST_CATCH_END
 
@@ -1710,8 +1704,8 @@
 
     is.width(0);
     if (b.size() == 0 /*|| !cerberos*/)
-        err |= ios_base::failbit;
-    if (err != ios_base::goodbit)
+        err |= std::ios_base::failbit;
+    if (err != std::ios_base::goodbit)
         is.setstate (err); // may throw
 
     return is;