Merge branch 'master' of ssh://crater.dragonflybsd.org/repository/git/dragonfly
[dragonfly.git] / contrib / gcc-3.4 / gcc / fp-test.c
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1/* fp-test.c - Check that all floating-point operations are available.
2 Copyright (C) 1995, 2000, 2003 Free Software Foundation, Inc.
3 Contributed by Ronald F. Guilmette <rfg@monkeys.com>.
4
5 This file is part of GCC.
6
7 GCC is free software; you can redistribute it and/or modify it
8 under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2, or (at your option)
10 any later version.
11
12 GCC is distributed in the hope that it will be useful, but WITHOUT
13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
14 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
15 License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with GCC; see the file COPYING. If not, write to the Free
19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
20 02111-1307, USA. */
21
22/* This is a trivial test program which may be useful to people who are
23 porting the GCC or G++ compilers to a new system. The intent here is
24 merely to check that all floating-point operations have been provided
25 by the port. (Note that I say ``provided'' rather than ``implemented''.)
26
27 To use this file, simply compile it (with GCC or G++) and then try to
28 link it in the normal way (also using GCC or G++ respectively). If
29 all of the floating -point operations (including conversions) have
30 been provided, then this file will link without incident. If however
31 one or more of the primitive floating-point operations have not been
32 properly provided, you will get link-time errors indicating which
33 floating-point operations are unavailable.
34
35 This file will typically be used when porting the GNU compilers to
36 some system which lacks floating-point hardware, and for which
37 software emulation routines (for FP ops) are needed in order to
38 complete the port. */
39
40#if 0
41#include <math.h>
42#endif
43
44extern double acos (double);
45extern double asin (double);
46extern double atan (double);
47extern double atan2 (double, double);
48extern double cos (double);
49extern double sin (double);
50extern double tan (double);
51extern double cosh (double);
52extern double sinh (double);
53extern double tanh (double);
54extern double exp (double);
55extern double frexp (double, int *);
56extern double ldexp (double, int);
57extern double log (double);
58extern double log10 (double);
59extern double modf (double, double *);
60extern double pow (double, double);
61extern double sqrt (double);
62extern double ceil (double);
63extern double fabs (double);
64extern double floor (double);
65extern double fmod (double, double);
66
67int i1, i2 = 2;
68
69volatile signed char sc;
70volatile unsigned char uc;
71
72volatile signed short ss;
73volatile unsigned short us;
74
75volatile signed int si;
76volatile unsigned int ui;
77
78volatile signed long sl;
79volatile unsigned long ul;
80
81volatile float f1 = 1.0, f2 = 1.0, f3 = 1.0;
82volatile double d1 = 1.0, d2 = 1.0, d3 = 1.0;
83volatile long double D1 = 1.0, D2 = 1.0, D3 = 1.0;
84
85int
86main (void)
87{
88 /* TYPE: float */
89
90 f1 = -f2;
91 f1 = f2 + f3;
92 f1 = f2 - f3;
93 f1 = f2 * f3;
94 f1 = f2 / f3;
95 f1 += f2;
96 f1 -= f2;
97 f1 *= f2;
98 f1 /= f2;
99
100 si = f1 == f2;
101 si = f1 != f2;
102 si = f1 > f2;
103 si = f1 < f2;
104 si = f1 >= f2;
105 si = f1 <= f2;
106
107 si = __builtin_isgreater (f1, f2);
108 si = __builtin_isgreaterequal (f1, f2);
109 si = __builtin_isless (f1, f2);
110 si = __builtin_islessequal (f1, f2);
111 si = __builtin_islessgreater (f1, f2);
112 si = __builtin_isunordered (f1, f2);
113
114 sc = f1;
115 uc = f1;
116 ss = f1;
117 us = f1;
118 si = f1;
119 ui = f1;
120 sl = f1;
121 ul = f1;
122 d1 = f1;
123 D1 = f1;
124
125 f1 = sc;
126 f1 = uc;
127 f1 = ss;
128 f1 = us;
129 f1 = si;
130 f1 = ui;
131 f1 = sl;
132 f1 = ul;
133 f1 = d1;
134 f1 = D1;
135
136 d1 = -d2;
137 d1 = d2 + d3;
138 d1 = d2 - d3;
139 d1 = d2 * d3;
140 d1 = d2 / d3;
141 d1 += d2;
142 d1 -= d2;
143 d1 *= d2;
144 d1 /= d2;
145
146 si = d1 == d2;
147 si = d1 != d2;
148 si = d1 > d2;
149 si = d1 < d2;
150 si = d1 >= d2;
151 si = d1 <= d2;
152
153 si = __builtin_isgreater (d1, d2);
154 si = __builtin_isgreaterequal (d1, d2);
155 si = __builtin_isless (d1, d2);
156 si = __builtin_islessequal (d1, d2);
157 si = __builtin_islessgreater (d1, d2);
158 si = __builtin_isunordered (d1, d2);
159
160 sc = d1;
161 uc = d1;
162 ss = d1;
163 us = d1;
164 si = d1;
165 ui = d1;
166 sl = d1;
167 ul = d1;
168 f1 = d1;
169 D1 = d1;
170
171 d1 = sc;
172 d1 = uc;
173 d1 = ss;
174 d1 = us;
175 d1 = si;
176 d1 = ui;
177 d1 = sl;
178 d1 = ul;
179 d1 = f1;
180 d1 = D1;
181
182 D1 = -D2;
183 D1 = D2 + D3;
184 D1 = D2 - D3;
185 D1 = D2 * D3;
186 D1 = D2 / D3;
187 D1 += D2;
188 D1 -= D2;
189 D1 *= D2;
190 D1 /= D2;
191
192 si = D1 == D2;
193 si = D1 != D2;
194 si = D1 > D2;
195 si = D1 < D2;
196 si = D1 >= D2;
197 si = D1 <= D2;
198
199 si = __builtin_isgreater (D1, D2);
200 si = __builtin_isgreaterequal (D1, D2);
201 si = __builtin_isless (D1, D2);
202 si = __builtin_islessequal (D1, D2);
203 si = __builtin_islessgreater (D1, D2);
204 si = __builtin_isunordered (D1, D2);
205
206 sc = D1;
207 uc = D1;
208 ss = D1;
209 us = D1;
210 si = D1;
211 ui = D1;
212 sl = D1;
213 ul = D1;
214 f1 = D1;
215 d1 = D1;
216
217 D1 = sc;
218 D1 = uc;
219 D1 = ss;
220 D1 = us;
221 D1 = si;
222 D1 = ui;
223 D1 = sl;
224 D1 = ul;
225 D1 = f1;
226 D1 = d1;
227
228 d1 = acos (d2);
229 d1 = asin (d2);
230 d1 = atan (d2);
231 d1 = atan2 (d2, d3);
232 d1 = cos (d2);
233 d1 = sin (d2);
234 d1 = tan (d2);
235 d1 = cosh (d2);
236 d1 = sinh (d2);
237 d1 = tanh (d2);
238 d1 = exp (d2);
239 d1 = frexp (d2, &i1);
240 d1 = ldexp (d2, i2);
241 d1 = log (d2);
242 d1 = log10 (d2);
243 d1 = modf (d2, &d3);
244 d1 = pow (d2, d3);
245 d1 = sqrt (d2);
246 d1 = ceil (d2);
247 d1 = fabs (d2);
248 d1 = floor (d2);
249 d1 = fmod (d2, d3);
250
251 return 0;
252}