diff options
Diffstat (limited to 'sysdeps/ieee754/flt-32/e_exp2f.c')
| -rw-r--r-- | sysdeps/ieee754/flt-32/e_exp2f.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/sysdeps/ieee754/flt-32/e_exp2f.c b/sysdeps/ieee754/flt-32/e_exp2f.c index 0b75a7ea2a..1723c482de 100644 --- a/sysdeps/ieee754/flt-32/e_exp2f.c +++ b/sysdeps/ieee754/flt-32/e_exp2f.c @@ -1,5 +1,5 @@ /* Single-precision floating point 2^x. - Copyright (C) 1997-2015 Free Software Foundation, Inc. + Copyright (C) 1997-2016 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Geoffrey Keating <geoffk@ozemail.com.au> @@ -37,8 +37,8 @@ #include "t_exp2f.h" -static const volatile float TWOM100 = 7.88860905e-31; -static const volatile float TWO127 = 1.7014118346e+38; +static const float TWOM100 = 7.88860905e-31; +static const float TWO127 = 1.7014118346e+38; float __ieee754_exp2f (float x) @@ -109,12 +109,16 @@ __ieee754_exp2f (float x) if (!unsafe) return result; else - return result * scale_u.f; + { + result *= scale_u.f; + math_check_force_underflow_nonneg (result); + return result; + } } /* Exceptional cases: */ else if (isless (x, himark)) { - if (__isinf_nsf (x)) + if (isinf (x)) /* e^-inf == 0, with no error. */ return 0; else |