diff options
Diffstat (limited to 'math/e_exp10.c')
| -rw-r--r-- | math/e_exp10.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/math/e_exp10.c b/math/e_exp10.c index 75185836b8..ce319fdcd2 100644 --- a/math/e_exp10.c +++ b/math/e_exp10.c @@ -1,4 +1,4 @@ -/* Copyright (C) 1998, 2011 Free Software Foundation, Inc. +/* Copyright (C) 1998-2012 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998. @@ -18,13 +18,16 @@ #include <math.h> #include <math_private.h> - +#include <float.h> double __ieee754_exp10 (double arg) { - /* This is a very stupid and inprecise implementation. It'll get - replaced sometime (soon?). */ - return __ieee754_exp (M_LN10 * arg); + if (__finite (arg) && arg < DBL_MIN_10_EXP - DBL_DIG - 10) + return DBL_MIN * DBL_MIN; + else + /* This is a very stupid and inprecise implementation. It'll get + replaced sometime (soon?). */ + return __ieee754_exp (M_LN10 * arg); } strong_alias (__ieee754_exp10, __exp10_finite) |