1 // ==========================================================================
2 // SeqAn - The Library for Sequence Analysis
3 // ==========================================================================
4 // Copyright (c) 2006-2018, Knut Reinert, FU Berlin
5 // All rights reserved.
6 //
7 // Redistribution and use in source and binary forms, with or without
8 // modification, are permitted provided that the following conditions are met:
9 //
10 // * Redistributions of source code must retain the above copyright
11 // notice, this list of conditions and the following disclaimer.
12 // * Redistributions in binary form must reproduce the above copyright
13 // notice, this list of conditions and the following disclaimer in the
14 // documentation and/or other materials provided with the distribution.
15 // * Neither the name of Knut Reinert or the FU Berlin nor the names of
16 // its contributors may be used to endorse or promote products derived
17 // from this software without specific prior written permission.
18 //
19 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
20 // AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 // ARE DISCLAIMED. IN NO EVENT SHALL KNUT REINERT OR THE FU BERLIN BE LIABLE
23 // FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 // DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
25 // SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
26 // CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 // LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 // OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
29 // DAMAGE.
30 //
31 // ==========================================================================
32 // Author: Manuel Holtgrewe <manuel.holtgrewe@fu-berlin.de>
33 // ==========================================================================
34 // Example program used in the documentation of the enable-if metaprogramming
35 // utilities.
36 // ==========================================================================
37
38 #include <cstdio>
39
40 #include <seqan/basic.h>
41
42 using namespace seqan;
43
44 // Demo worker for Loop<>.
45 //![print worker]
46 struct PrintWorker
47 {
bodyPrintWorker48 static inline void body(Nothing & arg, int I)
49 {
50 (void)arg; // ignored
51 printf("%d\n", I);
52 }
53
54 };
55 //![print worker]
56
main()57 int main()
58 {
59 // Call to PrintWorker::body() through Loop<>.
60 {
61 //![print worker call loop]
62 Nothing nothing;
63 Loop<PrintWorker, 10>::run(nothing);
64 // This will print the numbers 1, 2, ..., 9, 10.
65 //![print worker call loop]
66 }
67
68 // Call to PrintWorker::body() through LoopReverse<>.
69 {
70 //![print worker call loop reverse]
71 Nothing nothing;
72 LoopReverse<PrintWorker, 10>::run(nothing);
73 // This will print the numbers 10, 9, ..., 2, 1.
74 //![print worker call loop reverse]
75 }
76
77 return 0;
78 }
79