source:tests/coroutine/suspend_then.cfa@e6cfa8ff

Last change on this file since e6cfa8ff was dfa4360, checked in by Thierry Delisle <tdelisle@…>, 5 years ago

• Property mode set to `100644`
File size: 1.2 KB
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[5b11c25]1//
2// Cforall Version 1.0.0 Copyright (C) 2019 University of Waterloo
3//
4// The contents of this file are covered under the licence agreement in the
5// file "LICENCE" distributed with Cforall.
6//
7// suspend_then.cfa --
8//
9// Author           : Peter A. Buhr
10// Created On       : Mon Apr 29 12:01:35 2019
13// Update Count     :
14//
15
16#include <fstream.hfa>
17
[dfa4360]18generator Fibonacci {
19        int fn;                                                                         // used for communication
20        int fn1, fn2;                                                           // retained between resumes
21};
[5b11c25]22
23void main( Fibonacci & fib ) with( fib ) {                              // called on first resume
24        fn = 0;  fn1 = fn;                                                      // 1st case
[427854b]25        suspend { sout | "Then!"; }                                             // restart last resume
[5b11c25]26        fn = 1;  fn2 = fn1;  fn1 = fn;                                  // 2nd case
[427854b]27        suspend { sout | "Then!"; }                                             // restart last resume
[5b11c25]28        for () {
29                fn = fn1 + fn2;  fn2 = fn1;  fn1 = fn;                  // general case
[427854b]30                suspend { sout | "Then!"; }                                     // restart last resume
[5b11c25]31        } // for
32}
33
34int next( Fibonacci & fib ) with( fib ) {
35        resume( fib );                                                          // restart last suspend
36        return fn;
37}
38
39int main() {
40        Fibonacci f1, f2;
41        for ( 10 ) {                                                            // print N Fibonacci values
42                sout | next( f1 ) | next( f2 );
43        } // for
44}
45
46// Local Variables: //
47// tab-width: 4 //
48// compile-command: "cfa runningTotal.cfa" //
49// End: //
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