Files
local_function/test/same_line.cpp
2012-03-19 18:09:12 +00:00

46 lines
1.2 KiB
C++

// Copyright (C) 2009-2012 Lorenzo Caminiti
// Distributed under the Boost Software License, Version 1.0
// (see accompanying file LICENSE_1_0.txt or a copy at
// http://www.boost.org/LICENSE_1_0.txt)
// Home at http://www.boost.org/libs/local_function
#include <boost/config.hpp>
#ifndef BOOST_NO_VARIADIC_MACROS
#include <boost/local_function.hpp>
#include <boost/preprocessor/cat.hpp>
#define BOOST_TEST_MODULE TestSameLine
#include <boost/test/unit_test.hpp>
#include <iostream>
//[same_line
#define LOCAL_INC_DEC(offset) \
int BOOST_LOCAL_FUNCTION_ID( \
BOOST_PP_CAT(inc, __LINE__) /* unique ID */, 0 /* no TPL */, \
const bind offset, const int x) { \
return x + offset; \
} BOOST_LOCAL_FUNCTION_NAME(inc) \
\
int BOOST_LOCAL_FUNCTION_ID( \
BOOST_PP_CAT(dec, __LINE__) /* unique ID */, 0 /* no TPL */, \
const bind offset, const int x) { \
return x - offset; \
} BOOST_LOCAL_FUNCTION_NAME(dec)
BOOST_AUTO_TEST_CASE(test_same_line)
{
int delta = 10;
LOCAL_INC_DEC(delta) // Declare local functions on same line using `_ID`.
BOOST_CHECK(dec(inc(123)) == 123);
}
//]
#else
int main(void) { return 0; } // Trivial test.
#endif