/*-------------------------------------------------------------------- * The GMT-system: gmt_nan.h [Automatically Generated] * * Copyright (c) 1991-2001 by P. Wessel and W. H. F. Smith * See COPYING file for copying and redistribution conditions. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; version 2 of the License. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * Contact info: gmt.soest.hawaii.edu *--------------------------------------------------------------------*/ /* * Machine-dependent macros for generation of NaNs on this system * This file was created by the program gmt_nan_init.c */ #ifndef _GMT_NAN_H #define _GMT_NAN_H #ifdef NO_IEEE #define GMT_make_fnan(x) (x = MAX_FLT) #else #define GMT_make_fnan(x) (((unsigned int *) &x)[0] = 0x7fffffff) #endif #ifdef NO_IEEE #define GMT_make_dnan(x) (x = MAX_DBL) #else #define GMT_make_dnan(x) (((unsigned int *) &x)[0] = 0xffffffff, ((unsigned int *) &x)[1] = 0x7fffffff) #endif /* Conditionally define the last resort (poor man's isnan) in case they are not supplied in gmt_math.h */ #ifndef GMT_is_fnan #define GMT_is_fnan(x) ((x) != (x)) #endif #ifndef GMT_is_dnan #define GMT_is_dnan(x) ((x) != (x)) #endif #endif /* _GMT_NAN_H */