source:
src/tests/coroutine.c
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[242a902] | 1 | // |
[ec95d11] | 2 | // Cforall Version 1.0.0 Copyright (C) 2017 University of Waterloo |
3 | // | |
4 | // The contents of this file are covered under the licence agreement in the | |
5 | // file "LICENCE" distributed with Cforall. | |
[242a902] | 6 | // |
7 | // fibonacci.c -- | |
8 | // | |
[ec95d11] | 9 | // Author : Thierry Delisle |
10 | // Created On : Thu Jun 8 07:29:37 2017 | |
11 | // Last Modified By : Peter A. Buhr | |
12 | // Last Modified On : Thu Jun 8 07:37:12 2017 | |
13 | // Update Count : 5 | |
[242a902] | 14 | // |
[ec95d11] | 15 | |
[c15b805] | 16 | #include <fstream> |
[4a3334cf] | 17 | #include <coroutine> |
[c15b805] | 18 | |
[e04b636] | 19 | coroutine Fibonacci { |
[ec95d11] | 20 | int fn; // used for communication |
[c15b805] | 21 | }; |
22 | ||
[242a902] | 23 | void ?{}( Fibonacci & this ) { |
24 | this.fn = 0; | |
[80d9e49] | 25 | } |
26 | ||
[83a071f9] | 27 | void main( Fibonacci & this ) { |
[ec95d11] | 28 | int fn1, fn2; // retained between resumes |
[83a071f9] | 29 | this.fn = 0; // case 0 |
30 | fn1 = this.fn; | |
[ec95d11] | 31 | suspend(); // return to last resume |
32 | ||
[83a071f9] | 33 | this.fn = 1; // case 1 |
[ec95d11] | 34 | fn2 = fn1; |
[83a071f9] | 35 | fn1 = this.fn; |
[ec95d11] | 36 | suspend(); // return to last resume |
37 | ||
38 | for ( ;; ) { // general case | |
[83a071f9] | 39 | this.fn = fn1 + fn2; |
[ec95d11] | 40 | fn2 = fn1; |
[83a071f9] | 41 | fn1 = this.fn; |
[ec95d11] | 42 | suspend(); // return to last resume |
43 | } // for | |
[c15b805] | 44 | } |
45 | ||
[83a071f9] | 46 | int next( Fibonacci & this ) { |
[ec95d11] | 47 | resume( this ); // transfer to last suspend |
[83a071f9] | 48 | return this.fn; |
[c15b805] | 49 | } |
50 | ||
[9129a84] | 51 | int main() { |
[ec95d11] | 52 | Fibonacci f1, f2; |
53 | for ( int i = 1; i <= 10; i += 1 ) { | |
[83a071f9] | 54 | sout | next( f1 ) | ' ' | next( f2 ) | endl; |
[ec95d11] | 55 | } // for |
[0e76cf4f] | 56 | } |
[ec95d11] | 57 | |
58 | // Local Variables: // | |
59 | // tab-width: 4 // | |
60 | // compile-command: "cfa fibonacci.c" // | |
61 | // End: // |
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