00001 /******************************************************************************* 00002 Copyright (c) 2010, Intel Corp. 00003 All rights reserved. 00004 00005 Redistribution and use in source and binary forms, with or without 00006 modification, are permitted provided that the following conditions are met: 00007 00008 * Redistributions of source code must retain the above copyright notice, 00009 this list of conditions and the following disclaimer. 00010 * Redistributions in binary form must reproduce the above copyright 00011 notice, this list of conditions and the following disclaimer in the 00012 documentation and/or other materials provided with the distribution. 00013 * Neither the name of Intel Corporation nor the names of its contributors 00014 may be used to endorse or promote products derived from this software 00015 without specific prior written permission. 00016 00017 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 00018 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 00019 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 00020 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 00021 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 00022 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 00023 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 00024 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 00025 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 00026 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 00027 THE POSSIBILITY OF SUCH DAMAGE. 00028 ******************************************************************************** 00029 * Contents: auxiliary test routine for C interface to LAPACK 00030 * Author: Intel Corporation 00031 * Created in December, 2009 00032 * 00033 * Purpose 00034 * 00035 * This routine tests two complex numbers for identity with a tolerance. 00036 *******************************************************************************/ 00037 00038 #include "test_utils.h" 00039 00040 int compare_complex_floats( lapack_complex_float a, 00041 lapack_complex_float b ) { 00042 float a_re = *((float*)&a); 00043 float a_im = *(((float*)&a)+1); 00044 float b_re = *((float*)&b); 00045 float b_im = *(((float*)&b)+1); 00046 float diff_re = ( a_re > b_re ) ? ( a_re - b_re ) : ( b_re - a_re ); 00047 float diff_im = ( a_im > b_im ) ? ( a_im - b_im ) : ( b_im - a_im ); 00048 return ( diff_re < SP_TOLERANCE && 00049 diff_im < SP_TOLERANCE ) ? 0 : 1; 00050 }