[bada452] | 1 | //
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[2f22cc4] | 2 | // Cforall Version 1.0.0 Copyright (C) 2016 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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[bada452] | 6 | //
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| 7 | // labelledExit.cfa --
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| 8 | //
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[2f22cc4] | 9 | // Author : Peter A. Buhr
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| 10 | // Created On : Wed Aug 10 07:29:39 2016
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| 11 | // Last Modified By : Peter A. Buhr
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[d96f7c4] | 12 | // Last Modified On : Fri Jan 17 14:18:15 2025
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| 13 | // Update Count : 14
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[bada452] | 14 | //
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[2f22cc4] | 15 |
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[10dc7491] | 16 | int foo() {
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[bada452] | 17 | int i = 0;
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| 18 | int x = 0, y = 0;
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[62edde5] | 19 |
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[bada452] | 20 | // block, labelled exits
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[62edde5] | 21 |
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| 22 | Block: {
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[bada452] | 23 | if ( x == y ) {
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| 24 | for ( ; i < y; ) {
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| 25 | y += 1;
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| 26 | if ( y < 10 ) break Block;
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| 27 | }
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| 28 | }
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| 29 | }
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[62edde5] | 30 |
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[bada452] | 31 | // loops, labelled exits
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[62edde5] | 32 |
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[bada452] | 33 | w1: while ( y == 10 ) break w1;
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[62edde5] | 34 |
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| 35 | w2: while ( x < 10 ) {
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[bada452] | 36 | while (y < 5 ) {
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| 37 | if ( y == 3 ) break w2;
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| 38 | }
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| 39 | x += 1;
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| 40 | }
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[62edde5] | 41 |
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| 42 | A: for ( i = 0; i < 10; i += 1 ) {
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[bada452] | 43 | B: for ( i = 0; i < 10; i += 1 ) {
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| 44 | C: for ( i = 0; i < 10; i += 1 ) {
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| 45 | goto A;
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| 46 | goto B;
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| 47 | goto C;
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| 48 | continue A;
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| 49 | continue B;
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| 50 | continue C;
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| 51 | continue;
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| 52 | break A;
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| 53 | break B;
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| 54 | break C;
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| 55 | break;
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| 56 | }
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| 57 | }
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| 58 | }
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[62edde5] | 59 |
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[adb6b30f] | 60 | D: for () {
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[bada452] | 61 | break D;
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| 62 | continue D;
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| 63 | }
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[62edde5] | 64 |
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| 65 | Z : i += 1;
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[bada452] | 66 | goto Z;
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[adb6b30f] | 67 | X: Y: for () {
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[bada452] | 68 | i += 1;
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| 69 | if ( i > 5 ) continue X;
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| 70 | if ( i < 5 ) break X;
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| 71 | if ( i < 5 ) break Y;
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| 72 | break;
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| 73 | }
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[adb6b30f] | 74 | XX: for () {
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[bada452] | 75 | YY: for () {
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| 76 | ZZ: for () {
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| 77 | i += 1;
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| 78 | if ( i > 5 ) continue XX;
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| 79 | if ( i < 5 ) continue YY;
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| 80 | if ( i < 5 ) continue ZZ;
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| 81 | if ( i > 5 ) break XX;
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| 82 | if ( i < 5 ) break YY;
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| 83 | if ( i < 5 ) break ZZ;
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| 84 | break;
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| 85 | }
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| 86 | }
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| 87 | }
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| 88 |
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| 89 | for () ;
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| 90 | for ( int i = 0 ;; ) ++i;
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| 91 | for ( ; i < 0; ) ;
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| 92 | for ( ; ; i += 1 ) ;
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[62edde5] | 93 | L0: L1: L2: L3: L4: L5: L6: L7: L8: L9:
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| 94 | L10: L11: L12: L13: L14: L15: L16: L17: L18: L19:
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| 95 | L20: L21: L22: L23: L24: L25: L26: L27: L28: L29:
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| 96 | L31: L32: L33: L34:
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[bada452] | 97 | for () {
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| 98 | break L0;
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| 99 | break L1; break L2; break L3; break L4; break L5; break L6;
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| 100 | break L7; break L8; break L9; break L10; break L11; break L12;
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| 101 | break L13; break L14; break L15; break L16; break L17; break L18;
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| 102 | break L19; break L20; break L21; break L22; break L23; break L24;
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| 103 | break L25; break L26; break L27; break L28; break L29; break L31;
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| 104 | break L32; break L33; break L34;
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| 105 | }
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[62edde5] | 106 |
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[bada452] | 107 | // switch/choose, labelled exits
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[62edde5] | 108 |
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| 109 | Switch: switch ( i ) {
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[bada452] | 110 | default:
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| 111 | i += 1;
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| 112 | fallthrough;
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| 113 | case 0:
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| 114 | i += 1;
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| 115 | break Switch;
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| 116 | case 1:
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| 117 | switch ( i ) {
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| 118 | case 0:
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| 119 | break Switch;
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| 120 | default:
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| 121 | ; break;
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| 122 | }
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| 123 | }
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[62edde5] | 124 |
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| 125 | Choose: choose ( i ) {
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[bada452] | 126 | default:
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| 127 | i += 1;
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| 128 | case 0:
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| 129 | i += 1;
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| 130 | break Choose;
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| 131 | case 1:
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| 132 | choose ( i ) {
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| 133 | case 0:
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| 134 | break;
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| 135 | default:
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| 136 | break Choose;
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| 137 | }
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| 138 | fallthrough;
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| 139 | case 2:
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| 140 | i += 1;
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| 141 | }
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| 142 |
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| 143 | // all nested control options, labelled exits
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[9bdb8b7] | 144 |
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| 145 | Comp: {
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| 146 | Try: try {
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| 147 | For: for ( ;; ) {
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| 148 | While: while ( true ) {
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| 149 | Do: do {
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| 150 | If: if ( true ) {
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| 151 | Switch2: switch ( 3 ) {
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| 152 | case 3:
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| 153 | break Try;
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| 154 | break Comp;
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[bada452] | 155 | break For; continue For;
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| 156 | break While; continue While;
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| 157 | break Do; continue Do;
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| 158 | break If;
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| 159 | break Switch2;
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[9bdb8b7] | 160 | } // switch
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| 161 | } // if
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| 162 | } while ( true );
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| 163 | } // while
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| 164 | } // for
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| 165 | } finally {} // always executed
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| 166 | } // compound
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| 167 |
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[62edde5] | 168 | // computed goto
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[e53e5aa] | 169 | {
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| 170 | void *array[] = { &&foo, &&bar, &&hack };
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| 171 | foo: bar: hack:
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| 172 | &&foo;
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| 173 | &&bar;
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| 174 | goto *array[i];
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| 175 | }
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[62edde5] | 176 |
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| 177 | Q: if ( i > 5 ) {
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| 178 | i += 1;
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[540b275] | 179 | break Q;
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| 180 | }
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| 181 | else
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[62edde5] | 182 | i += 1;
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| 183 | }
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| 184 |
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[bada452] | 185 | int main() {
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[2853d6f] | 186 | printf("done\n");
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[aaf1f4d] | 187 | }
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| 188 |
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[62edde5] | 189 | // Local Variables: //
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| 190 | // tab-width: 4 //
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[dc8511c] | 191 | // compile-command: "cfa labelledExit.cfa" //
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[62edde5] | 192 | // End: //
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