/*============================================================================= | |
Boost.Wave: A Standard compliant C++ preprocessor library | |
http://www.boost.org/ | |
Copyright (c) 2001-2011 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) |