| // Stub definitions for float math. |
| |
| // Copyright (C) 2001, 2002, 2003, 2009 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 of the GNU General Public License as published by the |
| // Free Software Foundation; either version 3, or (at your option) |
| // any later version. |
| |
| // This 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 General Public License for more details. |
| |
| // Under Section 7 of GPL version 3, you are granted additional |
| // permissions described in the GCC Runtime Library Exception, version |
| // 3.1, as published by the Free Software Foundation. |
| |
| // You should have received a copy of the GNU General Public License and |
| // a copy of the GCC Runtime Library Exception along with this program; |
| // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see |
| // <http://www.gnu.org/licenses/>. |
| |
| #include <cmath> |
| |
| // For targets which do not have support for float versions, |
| // we use the following crude approximations. We keep saying that we'll do |
| // better later, but never do. |
| |
| extern "C" |
| { |
| #ifndef _GLIBCXX_HAVE_FABSF |
| float |
| fabsf(float x) |
| { |
| return (float) fabs(x); |
| } |
| #endif |
| |
| #ifndef _GLIBCXX_HAVE_ACOSF |
| float |
| acosf(float x) |
| { |
| return (float) acos(x); |
| } |
| #endif |
| |
| #ifndef _GLIBCXX_HAVE_ASINF |
| float |
| asinf(float x) |
| { |
| return (float) asin(x); |
| } |
| #endif |
| |
| #ifndef _GLIBCXX_HAVE_ATANF |
| float |
| atanf(float x) |
| { |
| return (float) atan(x); |
| } |
| #endif |
| |
| #ifndef _GLIBCXX_HAVE_ATAN2F |
| float |
| atan2f(float x, float y) |
| { |
| return (float) atan2(x, y); |
| } |
| #endif |
| |
| #ifndef _GLIBCXX_HAVE_CEILF |
| float |
| ceilf(float x) |
| { |
| return (float) ceil(x); |
| } |
| #endif |
| |
| #ifndef _GLIBCXX_HAVE_COSF |
| float |
| cosf(float x) |
| { |
| return (float) cos(x); |
| } |
| #endif |
| |
| #ifndef _GLIBCXX_HAVE_COSHF |
| float |
| coshf(float x) |
| { |
| return (float) cosh(x); |
| } |
| #endif |
| |
| #ifndef _GLIBCXX_HAVE_EXPF |
| float |
| expf(float x) |
| { |
| return (float) exp(x); |
| } |
| #endif |
| |
| #ifndef _GLIBCXX_HAVE_FLOORF |
| float |
| floorf(float x) |
| { |
| return (float) floor(x); |
| } |
| #endif |
| |
| #ifndef _GLIBCXX_HAVE_FMODF |
| float |
| fmodf(float x, float y) |
| { |
| return (float) fmod(x, y); |
| } |
| #endif |
| |
| #ifndef _GLIBCXX_HAVE_FREXPF |
| float |
| frexpf(float x, int *exp) |
| { |
| return (float) frexp(x, exp); |
| } |
| #endif |
| |
| #ifndef _GLIBCXX_HAVE_SQRTF |
| float |
| sqrtf(float x) |
| { |
| return (float) sqrt(x); |
| } |
| #endif |
| |
| #ifndef _GLIBCXX_HAVE_HYPOTF |
| float |
| hypotf(float x, float y) |
| { |
| float s = fabsf(x) + fabsf(y); |
| if (s == 0.0F) |
| return s; |
| x /= s; y /= s; |
| return s * sqrtf(x * x + y * y); |
| } |
| #endif |
| |
| #ifndef _GLIBCXX_HAVE_LDEXPF |
| float |
| ldexpf(float x, int exp) |
| { |
| return (float) ldexp(x, exp); |
| } |
| #endif |
| |
| #ifndef _GLIBCXX_HAVE_LOGF |
| float |
| logf(float x) |
| { |
| return (float) log(x); |
| } |
| #endif |
| |
| #ifndef _GLIBCXX_HAVE_LOG10F |
| float |
| log10f(float x) |
| { |
| return (float) log10(x); |
| } |
| #endif |
| |
| #ifndef _GLIBCXX_HAVE_MODFF |
| float |
| modff(float x, float *iptr) |
| { |
| double result, temp; |
| |
| result = modf(x, &temp); |
| *iptr = (float) temp; |
| return (float) result; |
| } |
| #endif |
| |
| #ifndef _GLIBCXX_HAVE_POWF |
| float |
| powf(float x, float y) |
| { |
| return (float) pow(x, y); |
| } |
| #endif |
| |
| #ifndef _GLIBCXX_HAVE_SINF |
| float |
| sinf(float x) |
| { |
| return (float) sin(x); |
| } |
| #endif |
| |
| #ifndef _GLIBCXX_HAVE_SINHF |
| float |
| sinhf(float x) |
| { |
| return (float) sinh(x); |
| } |
| #endif |
| |
| #ifndef _GLIBCXX_HAVE_TANF |
| float |
| tanf(float x) |
| { |
| return (float) tan(x); |
| } |
| #endif |
| |
| #ifndef _GLIBCXX_HAVE_TANHF |
| float |
| tanhf(float x) |
| { |
| return (float) tanh(x); |
| } |
| #endif |
| } // extern "C" |