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RAPI
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00001 /* 00002 * R : A Computer Language for Statistical Data Analysis 00003 * Copyright (C) 1995, 1996 Robert Gentleman and Ross Ihaka 00004 * Copyright (C) 1998-2012 The R Core Team. 00005 * 00006 * This program is free software; you can redistribute it and/or modify 00007 * it under the terms of the GNU Lesser General Public License as published by 00008 * the Free Software Foundation; either version 2.1 of the License, or 00009 * (at your option) any later version. 00010 * 00011 * This program is distributed in the hope that it will be useful, 00012 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00013 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00014 * GNU Lesser General Public License for more details. 00015 * 00016 * You should have received a copy of the GNU Lesser General Public License 00017 * along with this program; if not, a copy is available at 00018 * https://www.R-project.org/Licenses/ 00019 */ 00020 00021 /* Included by R.h: API */ 00022 00023 #ifndef R_EXT_CONSTANTS_H_ 00024 #define R_EXT_CONSTANTS_H_ 00025 00026 /* usually in math.h, but not with strict C99 compliance */ 00027 #ifndef M_PI 00028 #define M_PI 3.141592653589793238462643383279502884197169399375 00029 #endif 00030 00031 #ifndef STRICT_R_HEADERS 00032 #define PI M_PI 00033 #include <float.h> /* Defines the rest, at least in C99 */ 00034 #define SINGLE_EPS FLT_EPSILON 00035 #define SINGLE_BASE FLT_RADIX 00036 #define SINGLE_XMIN FLT_MIN 00037 #define SINGLE_XMAX FLT_MAX 00038 #define DOUBLE_DIGITS DBL_MANT_DIG 00039 #define DOUBLE_EPS DBL_EPSILON 00040 #define DOUBLE_XMAX DBL_MAX 00041 #define DOUBLE_XMIN DBL_MIN 00042 #endif 00043 00044 #endif /* R_EXT_CONSTANTS_H_ */
1.7.6.1
