/* * Copyright (c) 1987, 1988, 1989, 1990, 1991 Stanford University * Copyright (c) 1991 Silicon Graphics, Inc. * * Permission to use, copy, modify, distribute, and sell this software and * its documentation for any purpose is hereby granted without fee, provided * that (i) the above copyright notices and this permission notice appear in * all copies of the software and related documentation, and (ii) the names of * Stanford and Silicon Graphics may not be used in any advertising or * publicity relating to the software without the specific, prior written * permission of Stanford and Silicon Graphics. * * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. * * IN NO EVENT SHALL STANFORD OR SILICON GRAPHICS BE LIABLE FOR * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE * OF THIS SOFTWARE. */ #ifndef iv2_6_minmax_h #define iv2_6_minmax_h #include <InterViews/boolean.h> #define declare_2(T) \ inline T min(T a, T b) { return a < b ? a : b; } \ inline T max(T a, T b) { return a > b ? a : b; } \ declare_2(int) declare_2(unsigned) declare_2(float) declare_2(double) /* * Compiler isn't smart enough to figure out how to do 4-way min inline. */ #define declare_4(T) \ inline T min(T a, T b, T c, T d) { \ T r1 = min(a, b), r2 = min(c, d); \ return min(r1, r2); \ } \ \ inline T max(T a, T b, T c, T d) { \ T r1 = max(a, b), r2 = max(c, d); \ return max(r1, r2); \ } declare_4(int) declare_4(float) declare_4(double) inline int iv26_round(double x) { return x > 0 ? int(x+0.5) : -int(-x+0.5); } inline boolean iv26_equal(float x, float y, float e) { return x - y < e && y - x < e; } #endif