xref: /openbsd-src/gnu/lib/libstdc++/libstdc++/testsuite/26_numerics/c99_classification_macros_c++.cc (revision 6535ce224065a6145e4cbd3a479b4de389eca919)
1 // 2001-04-06 gdr
2 
3 // Copyright (C) 2001 Free Software Foundation, Inc.
4 //
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)
9 // any later version.
10 
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.
15 
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,
19 // USA.
20 
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.
29 
30 // { dg-do compile }
31 
32 #include <cmath>
33 
fpclassify()34 void fpclassify() { }
35 
isfinite()36 void isfinite() { }
37 
isinf()38 void isinf() { }
39 
isnan()40 void isnan() { }
41 
isnormal()42 void isnormal() { }
43 
signbit()44 void signbit() { }
45 
isgreater()46 void isgreater() { }
47 
isgreaterequal()48 void isgreaterequal() { }
49 
isless()50 void isless() { }
51 
islessequal()52 void islessequal() { }
53 
islessgreater()54 void islessgreater() { }
55 
isunordered()56 void isunordered() { }
57 
58 #if defined(_GLIBCPP_USE_C99)
59 template <typename _Tp>
test_c99_classify()60   void test_c99_classify()
61   {
62     bool test = true;
63 
64     typedef _Tp fp_type;
65     fp_type f1 = 1.0;
66     fp_type f2 = 3.0;
67     int res = 0;
68 
69     res = std::fpclassify(f1);
70     res = std::isfinite(f2);
71     res = std::isinf(f1);
72     res = std::isnan(f2);
73     res = std::isnormal(f1);
74     res = std::signbit(f2);
75     res = std::isgreater(f1, f2);
76     res = std::isgreaterequal(f1, f2);
77     res = std::isless(f1, f2);
78     res = std::islessequal(f1,f2);
79     res = std::islessgreater(f1, f2);
80     res = std::isunordered(f1, f2);
81   }
82 #endif
83 
main()84 int main()
85 {
86 #if defined(_GLIBCPP_USE_C99)
87   test_c99_classify<float>();
88   //test_c99_classify<double>();
89 #endif
90   return 0;
91 }
92