Subject: [Boost-commit] svn:boost r59496 - in trunk/libs/spirit/test: . support
From: hartmut.kaiser_at_[hidden]
Date: 2010-02-04 19:45:18
Author: hkaiser
Date: 2010-02-04 19:45:18 EST (Thu, 04 Feb 2010)
New Revision: 59496
URL: http://svn.boost.org/trac/boost/changeset/59496
Log:
Spirit: added another testcase for multi_pass
Added:
trunk/libs/spirit/test/support/multi_pass_regression002.cpp (contents, props changed)
Text files modified:
trunk/libs/spirit/test/Jamfile | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)
Modified: trunk/libs/spirit/test/Jamfile
==============================================================================
--- trunk/libs/spirit/test/Jamfile (original)
+++ trunk/libs/spirit/test/Jamfile 2010-02-04 19:45:18 EST (Thu, 04 Feb 2010)
@@ -140,6 +140,7 @@
# support tests
[ compile support/multi_pass_regression001.cpp : : support_multi_pass_regression001 ]
+ [ compile support/multi_pass_regression002.cpp : : support_multi_pass_regression002 ]
;
Added: trunk/libs/spirit/test/support/multi_pass_regression002.cpp
==============================================================================
--- (empty file)
+++ trunk/libs/spirit/test/support/multi_pass_regression002.cpp 2010-02-04 19:45:18 EST (Thu, 04 Feb 2010)
@@ -0,0 +1,107 @@
+// Copyright (c) 2010 Larry Evans
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//Purpose:
+// Demonstrate error in non-classic multi_pass iterator compilation.
+//
+
+#include <boost/spirit/home/qi.hpp>
+#include <boost/spirit/home/support.hpp>
+#include <boost/spirit/home/support/multi_pass.hpp>
+#include <boost/spirit/home/support/iterators/detail/functor_input_policy.hpp>
+
+#include <fstream>
+
+//[iterate_a2m:
+// copied from:
+// http://www.boost.org/doc/libs/1_41_0/libs/spirit/doc/html/spirit/support/multi_pass.html
+
+// define the function object
+template<typename CharT=char>
+class istreambuf_functor
+{
+public:
+ typedef
+ std::istreambuf_iterator<CharT>
+ buf_iterator_type;
+ typedef
+ typename buf_iterator_type::int_type
+ result_type;
+ static
+ result_type
+ eof;
+
+ istreambuf_functor(void)
+ : current_chr(eof)
+ {}
+
+ istreambuf_functor(std::ifstream& input)
+ : my_first(input)
+ , current_chr(eof)
+ {}
+
+ result_type operator()()
+ {
+ buf_iterator_type last;
+ if (my_first == last)
+ {
+ return eof;
+ }
+ current_chr=*my_first;
+ ++my_first;
+ return current_chr;
+ }
+
+private:
+ buf_iterator_type my_first;
+ result_type current_chr;
+};
+
+template<typename CharT>
+ typename istreambuf_functor<CharT>::result_type
+ istreambuf_functor<CharT>::
+eof
+( istreambuf_functor<CharT>::buf_iterator_type::traits_type::eof()
+)
+;
+
+//]iterate_a2m:
+
+typedef istreambuf_functor<char> base_iterator_type;
+
+typedef
+ boost::spirit::multi_pass
+ < base_iterator_type
+ , boost::spirit::iterator_policies::default_policy
+ < boost::spirit::iterator_policies::first_owner
+ , boost::spirit::iterator_policies::no_check
+ , boost::spirit::iterator_policies::functor_input
+ , boost::spirit::iterator_policies::split_std_deque
+ >
+ >
+chr_iterator_type;
+
+// ======================================================================
+// Main
+int main(int argc, char** argv)
+{
+ std::ifstream in("multi_pass.txt");
+
+ unsigned num_toks=0;
+ unsigned const max_toks=10;
+
+ base_iterator_type base_first(in);
+ chr_iterator_type chr_first(base_first);
+ chr_iterator_type chr_last;
+ for
+ (
+ ; (chr_first != chr_last && ++num_toks < max_toks)
+ ; ++chr_first
+ )
+ {
+ std::cout<<":num_toks="<<num_toks<<":chr="<<*chr_first<<"\n";
+ }
+ return 0;
+}