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| author | Paolo Carlini <paolo.carlini@oracle.com> | 2010-11-03 17:33:54 +0000 |
|---|---|---|
| committer | Paolo Carlini <paolo@gcc.gnu.org> | 2010-11-03 17:33:54 +0000 |
| commit | dd60dacdc52499c73ee329d86e1918ccd35fd9e3 (patch) | |
| tree | 67df1a4a2447adf81cc885a1bb33e8ad324da982 /libstdc++-v3 | |
| parent | fdb8b4c025aaec6ef208c0af698cc3faa87d15dd (diff) | |
| download | gcc-dd60dacdc52499c73ee329d86e1918ccd35fd9e3.zip gcc-dd60dacdc52499c73ee329d86e1918ccd35fd9e3.tar.gz gcc-dd60dacdc52499c73ee329d86e1918ccd35fd9e3.tar.bz2 | |
limits (__glibcxx_digits10, [...]): Use 643L instead of 643 to avoid overflows on 16-bit machines.
2010-11-03 Paolo Carlini <paolo.carlini@oracle.com>
* include/std/limits (__glibcxx_digits10, __glibcxx_max_digits10):
Use 643L instead of 643 to avoid overflows on 16-bit machines.
* include/ext/numeric_traits.h (__glibcxx_max_digits10): Likewise.
From-SVN: r166261
Diffstat (limited to 'libstdc++-v3')
| -rw-r--r-- | libstdc++-v3/ChangeLog | 6 | ||||
| -rw-r--r-- | libstdc++-v3/include/ext/numeric_traits.h | 4 | ||||
| -rw-r--r-- | libstdc++-v3/include/std/limits | 4 |
3 files changed, 10 insertions, 4 deletions
diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog index 0b7d3c2..cc03f49 100644 --- a/libstdc++-v3/ChangeLog +++ b/libstdc++-v3/ChangeLog @@ -1,3 +1,9 @@ +2010-11-03 Paolo Carlini <paolo.carlini@oracle.com> + + * include/std/limits (__glibcxx_digits10, __glibcxx_max_digits10): + Use 643L instead of 643 to avoid overflows on 16-bit machines. + * include/ext/numeric_traits.h (__glibcxx_max_digits10): Likewise. + 2010-11-02 Benjamin Kosnik <bkoz@redhat.com> * include/std/chrono: Use typedefs. diff --git a/libstdc++-v3/include/ext/numeric_traits.h b/libstdc++-v3/include/ext/numeric_traits.h index 57fcf9c..ab66a49 100644 --- a/libstdc++-v3/include/ext/numeric_traits.h +++ b/libstdc++-v3/include/ext/numeric_traits.h @@ -1,6 +1,6 @@ // -*- C++ -*- -// Copyright (C) 2007, 2009 Free Software Foundation, Inc. +// Copyright (C) 2007, 2008, 2009, 2010 Free Software Foundation, Inc. // // This file is part of the GNU ISO C++ Library. This library is free // software; you can redistribute it and/or modify it under the terms @@ -85,7 +85,7 @@ _GLIBCXX_BEGIN_NAMESPACE(__gnu_cxx) #define __glibcxx_max_digits10(_Tp) \ (2 + __glibcxx_floating(_Tp, __FLT_MANT_DIG__, __DBL_MANT_DIG__, \ - __LDBL_MANT_DIG__) * 3010 / 10000) + __LDBL_MANT_DIG__) * 643L / 2136) #define __glibcxx_digits10(_Tp) \ __glibcxx_floating(_Tp, __FLT_DIG__, __DBL_DIG__, __LDBL_DIG__) diff --git a/libstdc++-v3/include/std/limits b/libstdc++-v3/include/std/limits index ce557d6..4594c93 100644 --- a/libstdc++-v3/include/std/limits +++ b/libstdc++-v3/include/std/limits @@ -140,10 +140,10 @@ // The fraction 643/2136 approximates log10(2) to 7 significant digits. #define __glibcxx_digits10(T) \ - (__glibcxx_digits (T) * 643 / 2136) + (__glibcxx_digits (T) * 643L / 2136) #define __glibcxx_max_digits10(T) \ - (2 + (T) * 643 / 2136) + (2 + (T) * 643L / 2136) _GLIBCXX_BEGIN_NAMESPACE(std) |