1 /* Stub definitions for libmath subpart of libstdc++. */
3 /* Copyright (C) 2001, 2002, 2003 Free Software Foundation, Inc.
5 This file is part of the GNU ISO C++ Library. This library is free
6 software; you can redistribute it and/or modify it under the
7 terms of the GNU General Public License as published by the
8 Free Software Foundation; either version 2, or (at your option)
11 This library is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License along
17 with this library; see the file COPYING. If not, write to the Free
18 Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
21 As a special exception, you may use this file as part of a free software
22 library without restriction. Specifically, if other files instantiate
23 templates or use macros or inline functions from this file, or you compile
24 this file and link it with other files to produce an executable, this
25 file does not by itself cause the resulting executable to be covered by
26 the GNU General Public License. This exception does not however
27 invalidate any other reasons why the executable file might be covered by
28 the GNU General Public License. */
33 /* For targets which do not have support for long double versions,
34 we use the crude approximation. We'll do better later. */
39 atan2f(float x, float y)
41 return (float) atan2(x, y);
47 atan2l(long double x, long double y)
49 return atan2((double) x, (double) y);
58 return (float) cos(x);
66 return cos((double) x);
75 return (float) cosh(x);
83 return cosh((double) x);
92 return (float) exp(x);
100 return exp((double) x);
105 /* Compute the hypothenuse of a right triangle with side x and y. */
108 hypotf(float x, float y)
110 float s = fabsf(x) + fabsf(y);
114 return s * sqrtf(x * x + y * y);
120 hypot(double x, double y)
122 double s = fabs(x) + fabs(y);
126 return s * sqrt(x * x + y * y);
132 hypotl(long double x, long double y)
134 long double s = fabsl(x) + fabsl(y);
138 return s * sqrtl(x * x + y * y);
148 return (float) log(x);
156 return log((double) x);
165 return (float) log10(x);
171 log10l(long double x)
173 return log10((double) x);
180 powf(float x, float y)
182 return (float) pow(x, y);
188 powl(long double x, long double y)
190 return pow((double) x, (double) y);
199 return (float) sin(x);
207 return sin((double) x);
216 return (float) sinh(x);
224 return sinh((double) x);
233 return (float) sqrt(x);
241 return sqrt((double) x);
250 return (float) tan(x);
258 return tan((double) x);
267 return (float) tanh(x);
275 return tanh((double) x);