| /*************************************************************************/ |
| /* */ |
| /* Copyright (c) 1994 Stanford University */ |
| /* */ |
| /* All rights reserved. */ |
| /* */ |
| /* Permission is given to use, copy, and modify this software for any */ |
| /* non-commercial purpose as long as this copyright notice is not */ |
| /* removed. All other uses, including redistribution in whole or in */ |
| /* part, are forbidden without prior written permission. */ |
| /* */ |
| /* This software is provided with absolutely no warranty and no */ |
| /* support. */ |
| /* */ |
| /*************************************************************************/ |
| |
| /************************************************************************* |
| * * |
| * macros.h: general C macros * |
| * * |
| *************************************************************************/ |
| |
| |
| #define MIN(X,Y) ((X) < (Y) ? (X) : (Y)) |
| #define MAX(X,Y) ((X) > (Y) ? (X) : (Y)) |
| #define ABS(X) ((X) > 0 ? (X) : -(X)) |
| #define SIGN(X) ((X) > 0 ? 1 : -1) |
| #define NINT(X) (long)((X)+0.5) /* flt X>=0*/ |
| #define ROUNDDOWN(X) (long)(X) /* flt X>=0*/ |
| #define ROUNDUP(X) ((X) == (long)(X) ? (long)(X) : (long)(X)+1) /* flt X>=0*/ |
| #define STEPDOWN(X) ((X) == (long)(X) ? (long)(X)-1 : (long)(X)) /* flt X>=0*/ |
| #define STEPUP(X) ((long)(X)+1) /* flt X>=0*/ |
| #define NLONG(X) (long)((X)+0.5) /* flt X>=0*/ |
| #define HALF(X) ((X)>>1) /* int X>=0*/ |
| #define FRACT(X) ((X)-(long)(X)) /* flt X>=0*/ |
| |
| |
| |
