| [b6ad601] | 1 | // 
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 | 2 | // Cforall Version 1.0.0 Copyright (C) 2015 University of Waterloo
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 | 3 | //
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 | 4 | // The contents of this file are covered under the licence agreement in the
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 | 5 | // file "LICENCE" distributed with Cforall.
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 | 6 | // 
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| [dc8511c] | 7 | // loopctrl.cfa -- 
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| [b6ad601] | 8 | // 
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 | 9 | // Author           : Peter A. Buhr
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 | 10 | // Created On       : Wed Aug  8 18:32:59 2018
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 | 11 | // Last Modified By : Peter A. Buhr
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| [283876d] | 12 | // Last Modified On : Thu Aug 11 23:04:35 2022
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 | 13 | // Update Count     : 160
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| [b6ad601] | 14 | // 
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 | 15 | 
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 | 16 | #include <fstream.hfa>
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 | 17 | 
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| [091ccdb] | 18 | void fred() {
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 | 19 |         // Test all possible loop syntax.
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 | 20 | 
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| [c48b61c] | 21 |         int s = 0, c = 10, i = 2;
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 | 22 | 
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 | 23 |         for ( c ) { sout | "A"; }                                               sout | nl;
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 | 24 |         for ( ~= c ) { sout | "B"; }                                    sout | nl;
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 | 25 |         for ( -~ c ) { sout | "C"; }                                    sout | nl;
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 | 26 |         for ( -~= c ) { sout | "D"; }                                   sout | nl;
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 | 27 | 
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 | 28 |         for ( s ~ c ) { sout | "A"; }                                   sout | nl;
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 | 29 |         for ( s ~= c ) { sout | "B"; }                                  sout | nl;
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 | 30 |         for ( s -~ c ) { sout | "C"; }                                  sout | nl;
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 | 31 |         for ( s -~= c ) { sout | "D"; }                                 sout | nl;
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 | 32 | 
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 | 33 |         for ( s ~ c ~ i ) { sout | "A"; }                               sout | nl;
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 | 34 |         for ( s ~= c ~ i ) { sout | "B"; }                              sout | nl;
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 | 35 |         for ( s -~ c ~ i ) { sout | "C"; }                              sout | nl;
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 | 36 |         for ( s -~= c ~ i ) { sout | "D"; }                             sout | nl;
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 | 37 | 
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 | 38 |         for ( j; c ) { sout | j; }                                                      sout | nl;
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 | 39 |         for ( j; ~= c ) { sout | j; }                                   sout | nl;
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 | 40 |         for ( j; -~ c ) { sout | j; }                                   sout | nl;
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 | 41 |         for ( j; -~= c ) { sout | j; }                                  sout | nl;
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 | 42 | 
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 | 43 |         for ( j; s ~ c ) { sout | j; }                                  sout | nl;
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 | 44 |         for ( j; s ~= c ) { sout | j; }                                 sout | nl;
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 | 45 |         for ( j; s -~ c ) { sout | j; }                                 sout | nl;
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 | 46 |         for ( j; s -~= c ) { sout | j; }                                sout | nl;
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 | 47 | 
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 | 48 |         for ( j; s ~ c ~ i ) { sout | j; }                              sout | nl;
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 | 49 |         for ( j; s ~= c ~ i ) { sout | j; }                             sout | nl;
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 | 50 |         for ( j; s -~ c ~ i ) { sout | j; }                             sout | nl;
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 | 51 |         for ( j; s -~= c ~ i ) { sout | j; }                    sout | nl;
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| [091ccdb] | 52 | 
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 | 53 |         // CANNOT DIRECTLY INITIALIZE INDEX VARIABLE, ONLY SINGLE LOOP INDEX VARIABLE IN DECLARATION
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 | 54 | 
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| [c48b61c] | 55 |         for ( j; c ) { sout | j; }                                              sout | nl;
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 | 56 |         for ( int j; c ) { sout | j; }                                  sout | nl;
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 | 57 |         for ( int j; ~= c ) { sout | j; }                               sout | nl;
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 | 58 |         for ( int j; -~ c ) { sout | j; }                               sout | nl;
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 | 59 |         for ( int j; -~= c ) { sout | j; }                              sout | nl;
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 | 60 | 
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 | 61 |         for ( int j; s ~ c ) { sout | j; }                              sout | nl;
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 | 62 |         for ( int j; s ~= c ) { sout | j; }                             sout | nl;
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 | 63 |         for ( int j; s -~ c ) { sout | j; }                             sout | nl;
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 | 64 |         for ( int j; s -~= c ) { sout | j; }                    sout | nl;
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 | 65 | 
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 | 66 |         for ( int j; s ~ c ~ i ) { sout | j; }                  sout | nl;
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 | 67 |         for ( int j; s ~= c ~ i ) { sout | j; }                 sout | nl;
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 | 68 |         for ( int j; s -~ c ~ i ) { sout | j; }                 sout | nl;
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 | 69 |         for ( int j; s -~= c ~ i ) { sout | j; }                sout | nl;
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 | 70 | 
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 | 71 |         for ( j; s ~ @ ) { if ( j == 10 ) break; sout | j; }                            sout | nl;
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| [283876d] | 72 |         for ( j; @ -~ s ) { if ( j == -10 ) break; sout | j; }                          sout | nl;
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| [c48b61c] | 73 |         for ( j; s ~ @ ~ i ) { if ( j == 10 ) break; sout | j; }                        sout | nl;
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| [283876d] | 74 |         for ( j; @ -~ s ~ i ) { if ( j == -10 ) break; sout | j; }                      sout | nl;
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| [c48b61c] | 75 |         for ( j; s ~ @ ~ @ ) { if ( j == 10 ) break; sout | j; j += 1; }        sout | nl;
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 | 76 | 
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 | 77 |         for ( int j; s ~ @ ) { if ( j == 10 ) break; sout | j; j += 1; }        sout | nl;
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| [283876d] | 78 |         for ( int j; @ -~ s ) { if ( j == -10 ) break; sout | j; j -= 1; }      sout | nl;
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| [c48b61c] | 79 |         for ( int j; s ~ @ ~ i ) { if ( j == 10 ) break; sout | j; }            sout | nl;
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| [283876d] | 80 |         for ( int j; @ -~ s ~ i ) { if ( j == -10 ) break; sout | j; }          sout | nl;
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| [c48b61c] | 81 |         for ( int j; s ~ @ ~ @ ) { if ( j == 10 ) break; sout | j; j += 1; } sout | nl;
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| [091ccdb] | 82 | 
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 | 83 |         // enum E { A, B, C, D };
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| [c48b61c] | 84 |         // for ( e; A ~= C ) { sout | j; }
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 | 85 |         // for ( e; A ~= D ) { sout | j; }
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 | 86 |         // for ( e; A -~= D ~ 2 ) { sout | j; }
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 | 87 |         // for ( e; E ) { sout | j; }
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 | 88 |         // for ( e; -~ E ) { sout | j; }
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| [091ccdb] | 89 | }
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 | 90 | 
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| [b6ad601] | 91 | struct S { int i, j; };
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 | 92 | void ?{}( S & s ) { s.[i, j] = 0; }
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 | 93 | void ?{}( S & s, int i ) { s.[i, j] = [i, 0]; }
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 | 94 | void ?{}( S & s, int i, int j ) { s.[i, j] = [i, j]; }
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 | 95 | void ?{}( S & s, zero_t ) { s.[i, j] = 0; }
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 | 96 | void ?{}( S & s, one_t ) { s.[i, j] = 1; }
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 | 97 | int ?<?( S t1, S t2 ) { return t1.i < t2.i && t1.j < t2.j; }
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 | 98 | int ?<=?( S t1, S t2 ) { return t1.i <= t2.i && t1.j <= t2.j; }
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 | 99 | int ?>?( S t1, S t2 ) { return t1.i > t2.i && t1.j > t2.j; }
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 | 100 | int ?>=?( S t1, S t2 ) { return t1.i >= t2.i && t1.j >= t2.j; }
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 | 101 | S ?=?( S & t1, S t2 ) { t1.i = t2.i; t1.j = t2.j; return t1; }
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 | 102 | S ?+=?( S & t1, S t2 ) { t1.i += t2.i; t1.j += t2.j; return t1; }
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 | 103 | S ?+=?( S & t, one_t ) { t.i += 1; t.j += 1; return t; }
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 | 104 | S ?-=?( S & t1, S t2 ) { t1.i -= t2.i; t1.j -= t2.j; return t1; }
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 | 105 | S ?-=?( S & t, one_t ) { t.i -= 1; t.j -= 1; return t; }
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 | 106 | ofstream & ?|?( ofstream & os, S v ) { return os | '(' | v.i | v.j | ')'; }
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| [65240bb] | 107 | void & ?|?( ofstream & os, S v ) { (ofstream &)(os | v); ends( os ); }
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| [b6ad601] | 108 | 
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 | 109 | int main() {
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| [091ccdb] | 110 |         // Test some loop options.
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 | 111 | 
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| [200fcb3] | 112 |         sout | nlOff;                                                                           // turn off auto newline
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 | 113 |         while () { sout | "empty"; break; }                                     sout | nl;
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 | 114 |         do { sout | "empty"; break; } while ();                         sout | nl;
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| [5ea5b28] | 115 |         for () { sout | "empty"; break; }                                       sout | nl | nl;
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| [b6ad601] | 116 | 
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| [200fcb3] | 117 |         for ( 0 ) { sout | "A"; }                                                       sout | "zero" | nl;
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 | 118 |         for ( 1 ) { sout | "A"; }                                                       sout | nl;
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 | 119 |         for ( 10 ) { sout | "A"; }                                                      sout | nl;
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| [5c98a25] | 120 |         for ( ~= 10 ) { sout | "A"; }                                           sout | nl;
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| [200fcb3] | 121 |         for ( 1 ~= 10 ~ 2 ) { sout | "B"; }                                     sout | nl;
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| [c48b61c] | 122 |         for ( 1 -~= 10 ~ 2 ) { sout | "C"; }                            sout | nl;
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| [200fcb3] | 123 |         for ( 0.5 ~ 5.5 ) { sout | "D"; }                                       sout | nl;
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| [c48b61c] | 124 |         for ( 0.5 -~ 5.5 ) { sout | "E"; }                                      sout | nl | nl;
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| [b6ad601] | 125 | 
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| [200fcb3] | 126 |         for ( i; 10 ) { sout | i; }                                                     sout | nl;
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| [5c98a25] | 127 |         for ( i; ~= 10 ) { sout | i; }                                          sout | nl;
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| [200fcb3] | 128 |         for ( i; 1 ~= 10 ~ 2 ) { sout | i; }                            sout | nl;
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| [c48b61c] | 129 |         for ( i; 1 -~= 10 ~ 2 ) { sout | i; }                           sout | nl;
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| [200fcb3] | 130 |         for ( i; 0.5 ~ 5.5 ) { sout | i; }                                      sout | nl;
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| [c48b61c] | 131 |         for ( i; 0.5 -~ 5.5 ) { sout | i; }                                     sout | nl;
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| [200fcb3] | 132 |         for ( ui; 2u ~= 10u ~ 2u ) { sout | ui; }                       sout | nl;
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| [c48b61c] | 133 |         for ( ui; 2u -~= 10u ~ 2u ) { sout | ui; }                      sout | nl | nl;
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| [b6ad601] | 134 | 
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| [67d4e37] | 135 |         // @ means do nothing
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 | 136 |         for ( i; 1 ~ @ ) {
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 | 137 |           if ( i > 10 ) break;
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 | 138 |                 sout | i;
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 | 139 |         }                                                                                                       sout | nl;
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| [283876d] | 140 |         for ( i; @ -~ 10 ) {
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| [67d4e37] | 141 |           if ( i < 0 ) break;
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 | 142 |                 sout | i;
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 | 143 |         }                                                                                                       sout | nl;
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| [1b54b54] | 144 |         for ( i; 2 ~ @ ~ 2 ) {
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 | 145 |           if ( i > 10 ) break;
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 | 146 |                 sout | i;
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 | 147 |         }                                                                                                       sout | nl;
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 | 148 |         for ( i; 2.1 ~ @ ~ @ ) {
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 | 149 |           if ( i > 10.5 ) break;
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 | 150 |                 sout | i;
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 | 151 |                 i += 1.7;
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 | 152 |         }                                                                                                       sout | nl;
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| [283876d] | 153 |         for ( i; @ -~ 10 ~ 2 ) {
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| [1b54b54] | 154 |           if ( i < 0 ) break;
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 | 155 |                 sout | i;
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 | 156 |         }                                                                                                       sout | nl;
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 | 157 |         for ( i; 12.1 ~ @ ~ @ ) {
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 | 158 |           if ( i < 2.5 ) break;
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 | 159 |                 sout | i;
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 | 160 |                 i -= 1.7;
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 | 161 |         }                                                                                                       sout | nl | nl;
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 | 162 |         
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| [61dafb8] | 163 |         enum { N = 10 };
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| [200fcb3] | 164 |         for ( N ) { sout | "N"; }                                                       sout | nl;
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 | 165 |         for ( i; N ) { sout | i; }                                                      sout | nl;
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| [283876d] | 166 |         for ( i; ~= N ) { sout | i; }                                           sout | nl;
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| [c48b61c] | 167 |         for ( i; -~= N ) { sout | i; }                                          sout | nl | nl;
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| [61dafb8] | 168 | 
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| [dc8511c] | 169 |         const int start = 3, comp = 10, inc = 2;
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| [200fcb3] | 170 |         for ( i; start ~ comp ~ inc + 1 ) { sout | i; }         sout | nl | nl;
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| [b6ad601] | 171 | 
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| [67d4e37] | 172 |         for ( i; 10 : j; -5 ~ @ ) { sout | i | j; } sout | nl;
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| [283876d] | 173 |         for ( i; 10 : j; @ -~ -5 ) { sout | i | j; } sout | nl;
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| [67d4e37] | 174 |         for ( i; 10 : j; -5 ~ @ ~ 2 ) { sout | i | j; } sout | nl;
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| [283876d] | 175 |         for ( i; 10 : j; @ -~ -5 ~ 2 ) { sout | i | j; } sout | nl | nl;
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| [67d4e37] | 176 | 
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 | 177 |         for ( j; -5 ~ @ : i; 10 ) { sout | i | j; } sout | nl;
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| [283876d] | 178 |         for ( j; @ -~ -5 : i; 10 ) { sout | i | j; } sout | nl;
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| [67d4e37] | 179 |         for ( j; -5 ~ @ ~ 2 : i; 10 ) { sout | i | j; } sout | nl;
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| [283876d] | 180 |         for ( j; @ -~ -5 ~ 2 : i; 10 ) { sout | i | j; } sout | nl | nl;
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| [67d4e37] | 181 | 
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| [283876d] | 182 |         for ( j; @ -~ -5 ~ 2 : i; 10 : k; 1.5 ~ @ ) { sout | i | j | k; } sout | nl;
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 | 183 |         for ( j; @ -~ -5 ~ 2 : k; 1.5 ~ @ : i; 10 ) { sout | i | j | k; } sout | nl;
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 | 184 |         for ( k; 1.5 ~ @ : j; @ -~ -5 ~ 2 : i; 10 ) { sout | i | j | k; } sout | nl;
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| [c48b61c] | 185 | 
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| [ff36907] | 186 |         for ( S s = (S){0}; s < (S){10,10}; s += (S){1} ) { sout | s; } sout | nl;
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 | 187 |         for ( s; (S){10,10} ) { sout | s; } sout | nl;
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 | 188 |         sout | nl;
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 | 189 |         for ( s; (S){0} ~ (S){10,10} ) { sout | s; }             sout | nl;
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 | 190 |         for ( s; (S){0} ~ (S){10,10} ~ (S){1} ) { sout | s; } sout | nl;
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 | 191 |         for ( s; (S){0} ~= (S){10,10} ) { sout | s; }            sout | nl;
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 | 192 |         for ( s; (S){0} ~= (S){10,10} ~ (S){1} ) { sout | s; } sout | nl;
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 | 193 |         sout | nl;
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 | 194 |         for ( s; (S){0} -~  (S){10,10} ) { sout | s; }           sout | nl;
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 | 195 |         for ( s; (S){0} -~  (S){10,10} ~ (S){1} ) { sout | s; } sout | nl;
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 | 196 |         for ( s; (S){0} -~= (S){10,10} ) { sout | s; }           sout | nl;
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 | 197 |         for ( s; (S){0} -~= (S){10,10} ~ (S){1} ) { sout | s; } sout | nl | nl;
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 | 198 | 
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| [c48b61c] | 199 |         fred();
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| [b6ad601] | 200 | }
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 | 201 | 
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 | 202 | // Local Variables: //
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 | 203 | // tab-width: 4 //
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| [dc8511c] | 204 | // compile-command: "cfa loopctrl.cfa" //
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| [b6ad601] | 205 | // End: //
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