Added explicit calls to fstream::close rather than relying on destructors as a tentative gcc-cygwin fix.

[SVN r21287]

example/snippets/partial_regex_grep.cpp

@@ -79,6 +79,7 @@ int main(int argc, char* argv[])
          std::ifstream fs(argv[i]);
          if(fs.bad()) continue;
          search(fs);
+         fs.close();
       }
    }
    else

example/snippets/regex_grep_example_1.cpp

@@ -105,6 +105,7 @@ int main(int argc, const char** argv)
       map_type m;
       std::ifstream fs(argv[i]);
       load_file(text, fs);
+      fs.close();
       IndexClasses(m, text);
       cout << m.size() << " matches found" << endl;
       map_type::iterator c, d;

example/snippets/regex_grep_example_2.cpp

@@ -101,6 +101,7 @@ int main(int argc, const char** argv)
       cout << "Processing file " << argv[i] << endl;
       std::ifstream fs(argv[i]);
       load_file(text, fs);
+      fs.close();
       IndexClasses(text);
       cout << class_index.size() << " matches found" << endl;
       map_type::iterator c, d;

example/snippets/regex_grep_example_3.cpp

@@ -124,6 +124,7 @@ int main(int argc, const char** argv)
       cout << "Processing file " << argv[i] << endl;
       std::ifstream fs(argv[i]);
       load_file(text, fs);
+      fs.close();
       class_index idx;
       idx.IndexClasses(text);
       cout << idx.get_map().size() << " matches found" << endl;

example/snippets/regex_grep_example_4.cpp

@@ -123,6 +123,7 @@ int main(int argc, const char** argv)
       cout << "Processing file " << argv[i] << endl;
       std::ifstream fs(argv[i]);
       load_file(text, fs);
+      fs.close();
       class_index i;
       i.IndexClasses(text);
       cout << i.get_map().size() << " matches found" << endl;

example/snippets/regex_iterator_example.cpp

@@ -89,6 +89,7 @@ int main(int argc, const char** argv)
       cout << "Processing file " << argv[i] << endl;
       std::ifstream fs(argv[i]);
       load_file(text, fs);
+      fs.close();
       // construct our iterators:
       boost::sregex_iterator m1(text.begin(), text.end(), expression);
       boost::sregex_iterator m2;

example/snippets/regex_merge_example.cpp

@@ -62,6 +62,7 @@ int main(int argc, const char** argv)
       std::ifstream fs(argv[i]);
       std::string in;
       load_file(in, fs);
+      fs.close();
       std::string out_name = std::string(argv[i]) + std::string(".htm");
       std::ofstream os(out_name.c_str());
       os << header_text;
@@ -76,6 +77,7 @@ int main(int argc, const char** argv)
       std::ostream_iterator<char> out(os);
       boost::regex_merge(out, s.begin(), s.end(), e1, format_string, boost::match_default | boost::format_all);
       os << footer_text;
+      os.close();
    }
    }
    catch(...)

example/snippets/regex_replace_example.cpp

@@ -62,6 +62,7 @@ int main(int argc, const char** argv)
       std::ifstream fs(argv[i]);
       std::string in;
       load_file(in, fs);
+      fs.close();
       std::string out_name = std::string(argv[i]) + std::string(".htm");
       std::ofstream os(out_name.c_str());
       os << header_text;
@@ -76,6 +77,7 @@ int main(int argc, const char** argv)
       std::ostream_iterator<char> out(os);
       boost::regex_replace(out, s.begin(), s.end(), e1, format_string, boost::match_default | boost::format_all);
       os << footer_text;
+      os.close();
    }
    }
    catch(...)

example/snippets/regex_search_example.cpp

@@ -103,6 +103,7 @@ int main(int argc, const char** argv)
       map_type m;
       std::ifstream fs(argv[i]);
       load_file(text, fs);
+      fs.close();
       IndexClasses(m, text);
       cout << m.size() << " matches found" << endl;
       map_type::iterator c, d;

example/snippets/regex_split_example_2.cpp

@@ -55,6 +55,7 @@ int main(int argc, char** argv)
       s.erase();
       std::ifstream is(argv[i]);
       load_file(s, is);
+      is.close();
       boost::regex_split(std::back_inserter(l), s, e);
       while(l.size())
       {
@@ -74,6 +75,7 @@ int main(int argc, char** argv)
       s.erase();
       std::ifstream is(argv[i]);
       load_file(s, is);
+      is.close();
       while(boost::regex_split(std::ostream_iterator<std::string>(std::cout), s, e, boost::match_default, 1)) std::cout << std::endl;
    }
 

example/snippets/regex_token_iterator_eg_2.cpp

@@ -53,6 +53,7 @@ int main(int argc, char** argv)
       s.erase();
       std::ifstream is(argv[i]);
       load_file(s, is);
+      is.close();
       boost::sregex_token_iterator i(s.begin(), s.end(), e, 1);
       boost::sregex_token_iterator j;
       while(i != j)
@@ -71,6 +72,7 @@ int main(int argc, char** argv)
       s.erase();
       std::ifstream is(argv[i]);
       load_file(s, is);
+      is.close();
       const int subs[] = {1, 0,};
       boost::sregex_token_iterator i(s.begin(), s.end(), e, subs);
       boost::sregex_token_iterator j;

example/timer/regex_timer.cpp

@@ -359,7 +359,10 @@ int main(int argc, char**argv)
    }
 
    if(pbuf)
+   {
       cin.rdbuf(pbuf);
+      ifs.close();
+   }
 
    return 0;
 }