| /*============================================================================= |
| Boost.Wave: A Standard compliant C++ preprocessor library |
| |
| http://www.boost.org/ |
| |
| Copyright (c) 2001-2010 Hartmut Kaiser. 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) |
| =============================================================================*/ |
| |
| #if !defined(ITERATION_CONTEXT_HPP_9556CD16_F11E_4ADC_AC8B_FB9A174BE664_INCLUDED) |
| #define ITERATION_CONTEXT_HPP_9556CD16_F11E_4ADC_AC8B_FB9A174BE664_INCLUDED |
| |
| #include <cstdlib> |
| #include <cstdio> |
| #include <stack> |
| |
| #include <boost/wave/wave_config.hpp> |
| #include <boost/wave/cpp_exceptions.hpp> |
| |
| // this must occur after all of the includes and before any code appears |
| #ifdef BOOST_HAS_ABI_HEADERS |
| #include BOOST_ABI_PREFIX |
| #endif |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| namespace boost { |
| namespace wave { |
| namespace util { |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| template <typename IterationContextT> |
| class iteration_context_stack |
| { |
| typedef std::stack<IterationContextT> base_type; |
| |
| public: |
| typedef typename base_type::size_type size_type; |
| |
| iteration_context_stack() |
| : max_include_nesting_depth(BOOST_WAVE_MAX_INCLUDE_LEVEL_DEPTH) |
| {} |
| |
| void set_max_include_nesting_depth(size_type new_depth) |
| { max_include_nesting_depth = new_depth; } |
| size_type get_max_include_nesting_depth() const |
| { return max_include_nesting_depth; } |
| |
| typename base_type::size_type size() const { return iter_ctx.size(); } |
| typename base_type::value_type &top() { return iter_ctx.top(); } |
| void pop() { iter_ctx.pop(); } |
| |
| template <typename Context, typename PositionT> |
| void push(Context& ctx, PositionT const &pos, |
| typename base_type::value_type const &val) |
| { |
| if (iter_ctx.size() == max_include_nesting_depth) { |
| char buffer[22]; // 21 bytes holds all NUL-terminated unsigned 64-bit numbers |
| |
| using namespace std; // for some systems sprintf is in namespace std |
| sprintf(buffer, "%d", (int)max_include_nesting_depth); |
| BOOST_WAVE_THROW_CTX(ctx, preprocess_exception, |
| include_nesting_too_deep, buffer, pos); |
| } |
| iter_ctx.push(val); |
| } |
| |
| private: |
| size_type max_include_nesting_depth; |
| base_type iter_ctx; |
| }; |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| } // namespace util |
| } // namespace wave |
| } // namespace boost |
| |
| // the suffix header occurs after all of the code |
| #ifdef BOOST_HAS_ABI_HEADERS |
| #include BOOST_ABI_SUFFIX |
| #endif |
| |
| #endif // !defined(ITERATION_CONTEXT_HPP_9556CD16_F11E_4ADC_AC8B_FB9A174BE664_INCLUDED) |