[b81fd95] | 1 | //
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| 2 | // Cforall Version 1.0.0 Copyright (C) 2020 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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| 7 | // init1.cfa -- tests of initializing pointer- and reference-typed variables and returns
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| 8 | //
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| 9 | // Author : Michael Brooks
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| 10 | // Created On : Thu Jul 16 22:00:00 2020
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[ee858bf] | 11 | // Last Modified By : Peter A. Buhr
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[53692b3] | 12 | // Last Modified On : Sat Jun 5 10:06:57 2021
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| 13 | // Update Count : 9
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[b81fd95] | 14 | //
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| 15 |
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| 16 | void f() {
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| 17 |
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| 18 | //
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| 19 | // setup
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| 20 | //
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| 21 |
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| 22 | float x = 3.14;
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| 23 |
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| 24 | float & rx = x;
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| 25 | float * px = &x;
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| 26 |
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| 27 | const float & crx = x;
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| 28 | const float * cpx = &x;
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| 29 |
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| 30 | //
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| 31 | // sound initializations
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| 32 | //
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| 33 |
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| 34 | char * str1 = "hi";
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| 35 | const char * str2 = "hi";
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| 36 |
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| 37 | float & rx2 = rx;
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| 38 | float * px2 = px;
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| 39 |
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| 40 | const float & crx2 = crx;
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| 41 | const float * cpx2 = cpx;
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| 42 |
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[30cf6b0] | 43 | // FIX ME: Code gen not producing correct cast.
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| 44 | #pragma GCC diagnostic push
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| 45 | #pragma GCC diagnostic ignored "-Wincompatible-pointer-types"
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[ee858bf] | 46 | int (* fp)( int ) = 0p;
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| 47 | fp = 0p;
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[30cf6b0] | 48 | #pragma GCC diagnostic pop
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[ee858bf] | 49 |
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[b81fd95] | 50 | //
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| 51 | // unsound initializations
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| 52 | //
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| 53 |
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[ee858bf] | 54 | #ifdef ERR1
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[b81fd95] | 55 | // mismatched referenced type
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| 56 | int & ry = rx;
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| 57 | int * py = px;
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| 58 |
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| 59 | // would discard refered constness (same float is referenced)
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| 60 | float & ry2 = crx;
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| 61 | float * py2 = cpx;
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[ee858bf] | 62 | #endif // ERR1
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[b81fd95] | 63 | }
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| 64 |
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| 65 | //
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| 66 | // sound returns
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| 67 | //
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| 68 |
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| 69 | char * f_str1() {
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| 70 | return "hi";
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| 71 | }
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| 72 |
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| 73 | const char * f_str2() {
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| 74 | return "hi";
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| 75 | }
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| 76 |
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| 77 | float & f_rx2 () {
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| 78 | float & rx = *0p;
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| 79 | return rx;
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| 80 | }
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| 81 |
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| 82 | float * f_px2 () {
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| 83 | float * px = 0p;
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| 84 | return px;
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| 85 | }
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| 86 |
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| 87 | const float & f_crx2 () {
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| 88 | float & rx = *0p;
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| 89 | return rx;
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| 90 | }
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| 91 |
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| 92 | const float * f_cpx2 () {
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| 93 | float * px = 0p;
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| 94 | return px;
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| 95 | }
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| 96 |
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| 97 | //
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| 98 | // unsound returns
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| 99 | //
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| 100 |
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[ee858bf] | 101 | #ifdef ERR1
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[b81fd95] | 102 | int & f_ry() {
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| 103 | float & rx = *0p;
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| 104 | return rx; // mismatched referenced type
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| 105 | }
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| 106 |
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| 107 | int * f_py() {
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| 108 | float * px = 0p;
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| 109 | return px; // mismatched referenced type
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| 110 | }
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| 111 |
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| 112 | float & f_ry2() {
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| 113 | const float & crx = *0p;
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| 114 | return crx; // would discard refered constness (same float is referenced)
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| 115 | }
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| 116 |
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| 117 | float * f_py2() {
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| 118 | const float * cpx = 0p;
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| 119 | return cpx; // would discard refered constness (same float is referenced)
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| 120 | }
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| 121 |
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[fd54fef] | 122 | forall (T &, S &)
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[b81fd95] | 123 | T & anycvt( S & s ) {
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| 124 | return s; // mismatched referenced type
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| 125 | }
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| 126 |
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[fd54fef] | 127 | forall (T &, S &)
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[b81fd95] | 128 | T * anycvt( S * s ) {
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| 129 | return s; // mismatched referenced type
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| 130 | }
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[ee858bf] | 131 | #endif // ERR1
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| 132 |
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| 133 | int main() {
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[53692b3] | 134 | #pragma GCC warning "Compiled" // force non-empty .expect file, NO TABS!!!
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[ee858bf] | 135 | }
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