Ticket #3723: gzip.patch

boost/iostreams/filter/gzip.hpp

@@ -32 +32 @@
 #include <boost/iostreams/detail/adapter/range_adapter.hpp>
 #include <boost/iostreams/detail/char_traits.hpp>
 #include <boost/iostreams/detail/ios.hpp> // failure.
+#include <boost/iostreams/detail/error.hpp>
 #include <boost/iostreams/operations.hpp>
 #include <boost/iostreams/device/back_inserter.hpp>
 #include <boost/iostreams/filter/zlib.hpp>
@@ -531 +532 @@
         {
             if (offset_) {
                 putback_[--offset_] = c;
-                return true;
             } else {
-                return boost::iostreams::putback(src_, c);
+                boost::throw_exception(
+                    boost::iostreams::detail::bad_putback());
             }
+            return true;
         }
         void putback(const string_type& s)
         {

libs/iostreams/test/gzip_test.cpp

@@ -83 +83 @@
     BOOST_CHECK(std::equal(data.begin(), data.end(), dest.begin() + dest.size() / 2));
 }
 
+void array_source_test()
+{
+    std::string data = "simple test string.";
+    std::string encoded;
+
+    filtering_ostream out;
+    out.push(gzip_compressor());
+    out.push(io::back_inserter(encoded));
+    io::copy(make_iterator_range(data), out);
+
+    std::string res;
+    io::array_source src(encoded.data(),encoded.length());
+    io::copy(io::compose(io::gzip_decompressor(), src), io::back_inserter(res));
+    
+    BOOST_CHECK_EQUAL(data, res);
+}
+
 test_suite* init_unit_test_suite(int, char* []) 
 {
     test_suite* test = BOOST_TEST_SUITE("gzip test");
     test->add(BOOST_TEST_CASE(&compression_test));
     test->add(BOOST_TEST_CASE(&multiple_member_test));
+    test->add(BOOST_TEST_CASE(&array_source_test));
     return test;
 }