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| author | Joseph Myers <joseph@codesourcery.com> | 2012-08-27 16:01:27 +0000 |
|---|---|---|
| committer | Joseph Myers <joseph@codesourcery.com> | 2012-08-27 16:02:07 +0000 |
| commit | af92131a8eb7c2661a5bb0e31dc4cb028c85e0c6 (patch) | |
| tree | 314e393e8358ea722cc43c6a6ac8660fa5e71e6b /stdlib/fpioconst.h | |
| parent | d6e70f4368533224e66d10b7f2126b899a3fd5e4 (diff) | |
| download | glibc-af92131a8eb7c2661a5bb0e31dc4cb028c85e0c6.tar.gz glibc-af92131a8eb7c2661a5bb0e31dc4cb028c85e0c6.tar.xz glibc-af92131a8eb7c2661a5bb0e31dc4cb028c85e0c6.zip | |
Fix strtod rounding (bug 3479).
Diffstat (limited to 'stdlib/fpioconst.h')
| -rw-r--r-- | stdlib/fpioconst.h | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/stdlib/fpioconst.h b/stdlib/fpioconst.h index 5ab19f5bf1..34478b71cf 100644 --- a/stdlib/fpioconst.h +++ b/stdlib/fpioconst.h @@ -1,6 +1,5 @@ /* Header file for constants used in floating point <-> decimal conversions. - Copyright (C) 1995, 1996, 1997, 1998, 1999, 2002, 2003 - Free Software Foundation, Inc. + Copyright (C) 1995-2012 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 @@ -41,6 +40,13 @@ #define DBL_MAX_10_EXP_LOG 8 /* = floor(log_2(DBL_MAX_10_EXP)) */ #define FLT_MAX_10_EXP_LOG 5 /* = floor(log_2(FLT_MAX_10_EXP)) */ +/* For strtold, we need powers of 10 up to floor (log_2 (LDBL_MANT_DIG + - LDBL_MIN_EXP + 2)). */ +#if !defined __NO_LONG_DOUBLE_MATH && __LDBL_MAX_EXP__ > 1024 +# define FPIOCONST_POW10_ARRAY_SIZE 15 +#else +# define FPIOCONST_POW10_ARRAY_SIZE 11 +#endif /* The array with the number representation. */ extern const mp_limb_t __tens[] attribute_hidden; @@ -54,7 +60,7 @@ struct mp_power int p_expo; /* Exponent of the number 10^(2^i). */ int m_expo; /* Exponent of the number 10^-(2^i-1). */ }; -extern const struct mp_power _fpioconst_pow10[LDBL_MAX_10_EXP_LOG + 1] +extern const struct mp_power _fpioconst_pow10[FPIOCONST_POW10_ARRAY_SIZE] attribute_hidden; /* The constants in the array `_fpioconst_pow10' have an offset. */ |