0,0 → 1,224 |
// Stub definitions for float math. |
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// Copyright (C) 2001-2015 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. |
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// 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. |
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// 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. |
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// 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/>. |
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#include <cmath> |
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// 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. |
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extern "C" |
{ |
#ifndef _GLIBCXX_HAVE_FABSF |
float |
fabsf(float x) |
{ |
return (float) fabs(x); |
} |
#endif |
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#ifndef _GLIBCXX_HAVE_ACOSF |
float |
acosf(float x) |
{ |
return (float) acos(x); |
} |
#endif |
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#ifndef _GLIBCXX_HAVE_ASINF |
float |
asinf(float x) |
{ |
return (float) asin(x); |
} |
#endif |
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#ifndef _GLIBCXX_HAVE_ATANF |
float |
atanf(float x) |
{ |
return (float) atan(x); |
} |
#endif |
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#ifndef _GLIBCXX_HAVE_ATAN2F |
float |
atan2f(float x, float y) |
{ |
return (float) atan2(x, y); |
} |
#endif |
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#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 |
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#ifndef _GLIBCXX_HAVE_COSHF |
float |
coshf(float x) |
{ |
return (float) cosh(x); |
} |
#endif |
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#ifndef _GLIBCXX_HAVE_EXPF |
float |
expf(float x) |
{ |
return (float) exp(x); |
} |
#endif |
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#ifndef _GLIBCXX_HAVE_FLOORF |
float |
floorf(float x) |
{ |
return (float) floor(x); |
} |
#endif |
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#ifndef _GLIBCXX_HAVE_FMODF |
float |
fmodf(float x, float y) |
{ |
return (float) fmod(x, y); |
} |
#endif |
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#ifndef _GLIBCXX_HAVE_FREXPF |
float |
frexpf(float x, int *exp) |
{ |
return (float) frexp(x, exp); |
} |
#endif |
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#ifndef _GLIBCXX_HAVE_SQRTF |
float |
sqrtf(float x) |
{ |
return (float) sqrt(x); |
} |
#endif |
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#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 |
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#ifndef _GLIBCXX_HAVE_LDEXPF |
float |
ldexpf(float x, int exp) |
{ |
return (float) ldexp(x, exp); |
} |
#endif |
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#ifndef _GLIBCXX_HAVE_LOGF |
float |
logf(float x) |
{ |
return (float) log(x); |
} |
#endif |
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#ifndef _GLIBCXX_HAVE_LOG10F |
float |
log10f(float x) |
{ |
return (float) log10(x); |
} |
#endif |
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#ifndef _GLIBCXX_HAVE_MODFF |
float |
modff(float x, float *iptr) |
{ |
double result, temp; |
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result = modf(x, &temp); |
*iptr = (float) temp; |
return (float) result; |
} |
#endif |
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#ifndef _GLIBCXX_HAVE_POWF |
float |
powf(float x, float y) |
{ |
return (float) pow(x, y); |
} |
#endif |
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#ifndef _GLIBCXX_HAVE_SINF |
float |
sinf(float x) |
{ |
return (float) sin(x); |
} |
#endif |
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#ifndef _GLIBCXX_HAVE_SINHF |
float |
sinhf(float x) |
{ |
return (float) sinh(x); |
} |
#endif |
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#ifndef _GLIBCXX_HAVE_TANF |
float |
tanf(float x) |
{ |
return (float) tan(x); |
} |
#endif |
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#ifndef _GLIBCXX_HAVE_TANHF |
float |
tanhf(float x) |
{ |
return (float) tanh(x); |
} |
#endif |
} // extern "C" |