39 lines
1.5 KiB
C++
39 lines
1.5 KiB
C++
/***********************************************************************
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test/null_uniqueness.cpp - Code for checking that null_type cannot be
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converted to anything else. Because it triggers a compile-time
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check, it can't be included in the test suite. You have to just
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try building it. Comment out the assignment to int to check that
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the return statement also triggers the compile-time check.
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Copyright (c) 2008 by Educational Technology Resources, Inc.
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Others may also hold copyrights on code in this file. See the
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CREDITS.txt file in the top directory of the distribution for details.
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This file is part of MySQL++.
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MySQL++ is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published
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by the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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MySQL++ is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with MySQL++; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
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USA
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***********************************************************************/
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#include <mysql++.h>
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int
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main()
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{
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mysqlpp::Null<int> ni = mysqlpp::null;
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int this_should_not_even_compile = mysqlpp::null;
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return ni; // neither should this
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}
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