1 // inlines.h -- various inline template definitions
3 // Written by Norman Vine, started June 2000.
5 // Copyright (C) 2000 Norman Vine - nhv@cape.com
7 // This library is free software; you can redistribute it and/or
8 // modify it under the terms of the GNU Library General Public
9 // License as published by the Free Software Foundation; either
10 // version 2 of the License, or (at your option) any later version.
12 // This library is distributed in the hope that it will be useful,
13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 // Library General Public License for more details.
17 // You should have received a copy of the GNU Library General Public
18 // License along with this library; if not, write to the
19 // Free Software Foundation, Inc., 59 Temple Place - Suite 330,
20 // Boston, MA 02111-1307, USA.
30 inline const int SG_SIGN(const T x) {
31 return x < T(0) ? -1 : 1;
35 inline const T SG_MIN(const T a, const T b) {
39 // return the minimum of three values
41 inline const T SG_MIN3( const T a, const T b, const T c) {
42 return (a < b ? SG_MIN (a, c) : SG_MIN (b, c));
46 inline const T SG_MAX(const T a, const T b) {
50 // return the maximum of three values
52 inline const T SG_MAX3 (const T a, const T b, const T c) {
53 return (a > b ? SG_MAX (a, c) : SG_MAX (b, c));
58 inline void SG_SWAP( T &a, T &b) {
59 T c = a; a = b; b = c;
62 #endif // _SG_INLINES_H