+// 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 2, 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.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING. If not, write to the Free
+// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+// USA.
+
+// As a special exception, you may use this file as part of a free software
+// library without restriction. Specifically, if other files instantiate
+// templates or use macros or inline functions from this file, or you compile
+// this file and link it with other files to produce an executable, this
+// file does not by itself cause the resulting executable to be covered by
+// the GNU General Public License. This exception does not however
+// invalidate any other reasons why the executable file might be covered by
+// the GNU General Public License.
+
+#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"