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49 lines
2.0 KiB
C++
49 lines
2.0 KiB
C++
/*
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* Copyright (c) 2023, Roland Bock
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "Sample.h"
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#include "compare.h"
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#include <sqlpp11/sqlpp11.h>
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int IsNull(int, char* [])
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{
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const auto bar = test::TabBar{};
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// Single column.
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compare(__LINE__, is_null(bar.beta), "tab_bar.beta IS NULL");
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// Expression.
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compare(__LINE__, is_null(bar.beta + "suffix"), "(tab_bar.beta||'suffix') IS NULL");
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// With sub select.
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compare(__LINE__, is_null(select(sqlpp::value("something").as(sqlpp::alias::a))), "(SELECT 'something' AS a) IS NULL");
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// Requires parens.
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compare(__LINE__, is_null(bar.beta) or bar.beta == "", "((tab_bar.beta IS NULL) OR (tab_bar.beta=''))");
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compare(__LINE__, bar.beta == "" or is_null(bar.beta), "((tab_bar.beta='') OR (tab_bar.beta IS NULL))");
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return 0;
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}
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