ForceAnnealing_goodresults
ForceAnnealing_tocheck
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[0b990d] | 1 | //
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| 2 | // offset.h
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| 3 | //
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| 4 | // Copyright (C) 1996 Limit Point Systems, Inc.
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| 5 | //
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| 6 | // Author: Curtis Janssen <cljanss@ca.sandia.gov>
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| 7 | // Maintainer: LPS
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| 8 | //
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| 9 | // This file is part of the SC Toolkit.
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| 10 | //
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| 11 | // The SC Toolkit is free software; you can redistribute it and/or modify
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| 12 | // it under the terms of the GNU Library General Public License as published by
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| 13 | // the Free Software Foundation; either version 2, or (at your option)
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| 14 | // any later version.
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| 15 | //
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| 16 | // The SC Toolkit is distributed in the hope that it will be useful,
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| 17 | // but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 18 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 19 | // GNU Library General Public License for more details.
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| 20 | //
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| 21 | // You should have received a copy of the GNU Library General Public License
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| 22 | // along with the SC Toolkit; see the file COPYING.LIB. If not, write to
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| 23 | // the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
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| 24 | //
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| 25 | // The U.S. Government is granted a limited license as per AL 91-7.
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| 26 | //
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| 27 |
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| 28 | #ifndef _math_scmat_offset_h
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| 29 | #define _math_scmat_offset_h
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| 30 |
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| 31 | #ifdef __c_plus_plus
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| 32 |
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| 33 | namespace sc {
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| 34 |
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| 35 | static inline int
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| 36 | i_offset(int i)
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| 37 | {
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| 38 | return ((i*(i+1)) >> 1);
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| 39 | }
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| 40 |
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| 41 | static inline int
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| 42 | ij_offset(int i, int j)
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| 43 | {
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| 44 | return (i>j) ? (((i*(i+1)) >> 1) + j) : (((j*(j+1)) >> 1) + i);
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| 45 | }
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| 46 |
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| 47 | static inline int
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| 48 | igtj_offset(int i, int j)
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| 49 | {
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| 50 | return ((i*(i+1)) >> 1) + j;
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| 51 | }
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| 52 |
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| 53 | }
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| 54 |
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| 55 | #else
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| 56 |
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| 57 | #define i_offset(i) (((i)*((i)+1))>>1)
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| 58 | #define ij_offset(i,j) (((i)>(j))?(i_offset(i)+(j)):(i_offset(j)+(i)))
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| 59 | #define igtj_offset(i,j) (i_offset(i)+(j))
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| 60 |
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| 61 | #endif
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| 62 |
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| 63 | #endif
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