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-rw-r--r--libs/local_function/test/same_line_seq.cpp48
1 files changed, 48 insertions, 0 deletions
diff --git a/libs/local_function/test/same_line_seq.cpp b/libs/local_function/test/same_line_seq.cpp
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+++ b/libs/local_function/test/same_line_seq.cpp
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+
+// 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/local_function.hpp>
+#include <boost/preprocessor/cat.hpp>
+#include <boost/detail/lightweight_test.hpp>
+#include <iostream>
+
+#define LOCAL_INC_DEC(offset) \
+ int BOOST_LOCAL_FUNCTION_ID(BOOST_PP_CAT(inc, __LINE__), /* unique ID */ \
+ (const bind offset) (const int x) ) { \
+ return x + offset; \
+ } BOOST_LOCAL_FUNCTION_NAME(inc) \
+ \
+ int BOOST_LOCAL_FUNCTION_ID(BOOST_PP_CAT(dec, __LINE__), \
+ (const bind offset) (const int x) ) { \
+ return x - offset; \
+ } BOOST_LOCAL_FUNCTION_NAME(dec)
+
+#define LOCAL_INC_DEC_TPL(offset) \
+ T BOOST_LOCAL_FUNCTION_ID_TPL(BOOST_PP_CAT(inc, __LINE__), \
+ (const bind offset) (const T x) ) { \
+ return x + offset; \
+ } BOOST_LOCAL_FUNCTION_NAME_TPL(inc) \
+ \
+ T BOOST_LOCAL_FUNCTION_ID_TPL(BOOST_PP_CAT(dec, __LINE__), \
+ (const bind offset) (const T x) ) { \
+ return x - offset; \
+ } BOOST_LOCAL_FUNCTION_NAME_TPL(dec)
+
+template<typename T>
+void f(T& delta) {
+ LOCAL_INC_DEC_TPL(delta) // Multiple local functions on same line.
+ BOOST_TEST(dec(inc(123)) == 123);
+}
+
+int main(void) {
+ int delta = 10;
+ LOCAL_INC_DEC(delta) // Declare local functions on same line using `_ID`.
+ BOOST_TEST(dec(inc(123)) == 123);
+ f(delta);
+ return boost::report_errors();
+}
+