| /* |
| * Mathlib - A Mathematical Function Library |
| * Copyright (C) 1998 Ross Ihaka |
| * Copyright (C) 2000-7 The R Core Team |
| * |
| * 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; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * 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. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, a copy is available at |
| * https://www.R-project.org/Licenses/ |
| */ |
| |
| #include "nmath.h" |
| #include <limits.h> |
| |
| attribute_hidden int Rf_i1mach(int i) |
| { |
| switch(i) { |
| |
| case 1: return 5; |
| case 2: return 6; |
| case 3: return 0; |
| case 4: return 0; |
| |
| case 5: return CHAR_BIT * sizeof(int); |
| case 6: return sizeof(int)/sizeof(char); |
| |
| case 7: return 2; |
| case 8: return CHAR_BIT * sizeof(int) - 1; |
| case 9: return INT_MAX; |
| |
| case 10: return FLT_RADIX; |
| |
| case 11: return FLT_MANT_DIG; |
| case 12: return FLT_MIN_EXP; |
| case 13: return FLT_MAX_EXP; |
| |
| case 14: return DBL_MANT_DIG; |
| case 15: return DBL_MIN_EXP; |
| case 16: return DBL_MAX_EXP; |
| |
| default: return 0; |
| } |
| } |
| |
| int F77_NAME(i1mach)(int *i) |
| { |
| return Rf_i1mach(*i); |
| } |