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70 lines
1.9 KiB
C++
70 lines
1.9 KiB
C++
// Copyright (C) 2019 Paul Keir
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//
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// Distributed under the Boost Software License, Version 1.0. (See
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// accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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#include <boost/yap/yap.hpp>
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#include <boost/core/lightweight_test.hpp>
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namespace yap = boost::yap;
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int main()
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{
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// Test replacements(), which returns a transform object
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{
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using namespace boost::yap::literals;
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auto expr_in = 1_p * 2_p;
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auto xform = yap::replacements(6,9);
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auto expr_out = yap::transform(expr_in,xform);
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auto result = yap::evaluate(expr_out);
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BOOST_TEST(result == 54);
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#ifndef _MSC_VER // Tsk, tsk.
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constexpr auto cxform = yap::replacements(6);
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constexpr auto cexpr_out = yap::transform(1_p,cxform);
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constexpr auto cresult = yap::evaluate(cexpr_out);
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static_assert(cresult == 6,"");
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#endif
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}
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// Test evaluation(), which returns a transform object
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{
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using namespace boost::yap::literals;
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auto expr_in = 1_p * 2_p;
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auto xform = yap::evaluation(7,10);
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auto result = yap::transform(expr_in,xform);
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BOOST_TEST(result == 70);
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#ifndef _MSC_VER // Tsk, tsk.
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constexpr auto cxform = yap::evaluation(7);
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constexpr auto cresult = yap::transform(1_p,cxform);
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static_assert(cresult == 7,"");
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#endif
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}
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// Test replace_placeholders(), which returns an expression
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{
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using namespace boost::yap::literals;
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auto expr_in = 1_p * 2_p;
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auto expr_out = yap::replace_placeholders(expr_in,8,11);
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auto result = yap::evaluate(expr_out);
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BOOST_TEST(result == 88);
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#ifndef _MSC_VER // Tsk, tsk.
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constexpr auto cexpr_out = yap::replace_placeholders(1_p,8);
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constexpr auto cresult = yap::evaluate(cexpr_out);
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static_assert(cresult == 8,"");
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#endif
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}
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return boost::report_errors();
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}
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