assert.h

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/*
 * Copyright (C) 2022 Paul Davis <paul@linuxaudiosystems.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */
 
#pragma once
 
/*  macro designed to handle cases like this:
 
     int foo = some_method ();
     assert (foo == 0);
 
   In an optimized build, this will generate warnings about foo being unused,
   and so remove that clutter, use:
 
     x_assert (foo, foo == 0);
*/
 
# ifndef NDEBUG
#define x_assert(VAR, EXPR) assert (EXPR)
# else
#define x_assert(VAR, EXPR) (void) (VAR)
# endif