| /* Header file for constants used in floating point <-> decimal conversions. |

| Copyright (C) 1995, 1996, 1997, 1998, 1999, 2002, 2003 |

| Free Software Foundation, Inc. |

| This file is part of the GNU C Library. |

| |

| The GNU C Library is free software; you can redistribute it and/or |

| modify it under the terms of the GNU Lesser General Public |

| License as published by the Free Software Foundation; either |

| version 2.1 of the License, or (at your option) any later version. |

| |

| The GNU C Library 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 |

| Lesser General Public License for more details. |

| |

| You should have received a copy of the GNU Lesser General Public |

| License along with the GNU C Library; if not, write to the Free |

| Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |

| 02111-1307 USA. */ |

| |

| #ifndef _FPIOCONST_H |

| #define _FPIOCONST_H |

| |

| #include <float.h> |

| #include <math.h> |

| |

| |

| /* These values are used by __printf_fp, where they are noncritical (if the |

| value is not large enough, it will just be slower); and by |

| strtof/strtod/strtold, where it is critical (it's used for overflow |

| detection). |

| |

| XXX These should be defined in <float.h>. For the time being, we have the |

| IEEE754 values here. */ |

| |

| #define FLT128_MAX_10_EXP_LOG 12 /* = floor(log_2(FLT128_MAX_10_EXP)) */ |

| |

| /* For strtoq, we need powers of 10 up to floor (log_2 (FLT128_MANT_DIG |

| - FLT128_MIN_EXP + 2)). */ |

| #if !defined __NO_LONG_DOUBLE_MATH && FLT128_MAX_EXP > 1024 |

| # define FPIOCONST_POW10_ARRAY_SIZE 15 |

| #else |

| # define FPIOCONST_POW10_ARRAY_SIZE 11 |

| #endif |

| |

| |

| /* The array with the number representation. */ |

| #define __tens __quadmath_tens |

| extern const mp_limb_t __tens[] attribute_hidden; |

| |

| /* Table of powers of ten. This is used by __printf_fp and by |

| strtof/strtod/strtold. */ |

| struct mp_power |

| { |

| size_t arrayoff; /* Offset in `__tens'. */ |

| mp_size_t arraysize; /* Size of the array. */ |

| int p_expo; /* Exponent of the number 10^(2^i). */ |

| int m_expo; /* Exponent of the number 10^-(2^i-1). */ |

| }; |

| #define _fpioconst_pow10 __quadmath_fpioconst_pow10 |

| extern const struct mp_power _fpioconst_pow10[FPIOCONST_POW10_ARRAY_SIZE] |

| attribute_hidden; |

| |

| /* The constants in the array `_fpioconst_pow10' have an offset. */ |

| #if BITS_PER_MP_LIMB == 32 |

| # define _FPIO_CONST_OFFSET 2 |

| #else |

| # define _FPIO_CONST_OFFSET 1 |

| #endif |

| |

| |

| #endif /* fpioconst.h */ |