| 1 | // | 
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| 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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| 6 | // | 
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| 7 | // alloc.cfa -- | 
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| 8 | // | 
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| 9 | // Author           : Peter A. Buhr | 
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| 10 | // Created On       : Wed Feb  3 07:56:22 2016 | 
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| 11 | // Last Modified By : Peter A. Buhr | 
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| 12 | // Last Modified On : Tue Nov  6 17:50:52 2018 | 
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| 13 | // Update Count     : 339 | 
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| 14 | // | 
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| 15 |  | 
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| 16 | #include <assert.h> | 
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| 17 | #include <malloc.h>                                                                             // malloc_usable_size | 
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| 18 | #include <stdint.h>                                                                             // uintptr_t | 
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| 19 | #include <stdlib.h>                                                                             // posix_memalign | 
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| 20 | #include <fstream.hfa> | 
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| 21 | #include <stdlib.hfa>                                                                           // access C malloc, realloc | 
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| 22 |  | 
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| 23 | int * foo( int * p, int c ) { return p; } | 
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| 24 | int * bar( int * p, int c ) { return p; } | 
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| 25 | int * baz( int * p, int c ) { return p; } | 
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| 26 |  | 
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| 27 | int main( void ) { | 
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| 28 | size_t dim = 10; | 
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| 29 | char fill = '\xff'; | 
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| 30 | int * p; | 
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| 31 |  | 
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| 32 | // allocation, non-array types | 
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| 33 |  | 
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| 34 | // int & r = malloc(); | 
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| 35 | // r = 0xdeadbeef; | 
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| 36 | // printf( "C   malloc %#x\n", r ); | 
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| 37 | // free( &r ); | 
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| 38 |  | 
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| 39 | p = (int *)malloc( sizeof(*p) );                                        // C malloc, type unsafe | 
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| 40 | *p = 0xdeadbeef; | 
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| 41 | printf( "C   malloc %#x\n", *p ); | 
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| 42 | free( p ); | 
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| 43 |  | 
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| 44 | p = malloc();                                       // CFA malloc, type safe | 
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| 45 | *p = 0xdeadbeef; | 
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| 46 | printf( "CFA malloc %#x\n", *p ); | 
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| 47 | free( p ); | 
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| 48 |  | 
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| 49 | p = alloc();                                        // CFA alloc, type safe | 
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| 50 | *p = 0xdeadbeef; | 
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| 51 | printf( "CFA alloc %#x\n", *p ); | 
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| 52 | free( p ); | 
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| 53 |  | 
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| 54 | p = alloc( fill );                                  // CFA alloc, fill | 
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| 55 | printf( "CFA alloc, fill %08x\n", *p ); | 
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| 56 | free( p ); | 
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| 57 |  | 
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| 58 |  | 
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| 59 | // allocation, array types | 
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| 60 | printf( "\n" ); | 
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| 61 |  | 
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| 62 | p = (int *)calloc( dim, sizeof( *p ) );                         // C array calloc, type unsafe | 
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| 63 | printf( "C   array calloc, fill 0\n" ); | 
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| 64 | for ( i; dim ) { printf( "%#x ", p[i] ); } | 
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| 65 | printf( "\n" ); | 
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| 66 | free( p ); | 
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| 67 |  | 
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| 68 | p = calloc( dim );                                  // CFA array calloc, type safe | 
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| 69 | printf( "CFA array calloc, fill 0\n" ); | 
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| 70 | for ( i; dim ) { printf( "%#x ", p[i] ); } | 
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| 71 | printf( "\n" ); | 
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| 72 | free( p ); | 
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| 73 |  | 
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| 74 | p = alloc( dim );                                   // CFA array alloc, type safe | 
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| 75 | for ( i; dim ) { p[i] = 0xdeadbeef; } | 
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| 76 | printf( "CFA array alloc, no fill\n" ); | 
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| 77 | for ( i; dim ) { printf( "%#x ", p[i] ); } | 
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| 78 | printf( "\n" ); | 
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| 79 | free( p ); | 
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| 80 |  | 
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| 81 | p = alloc( 2 * dim, fill );                         // CFA array alloc, fill | 
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| 82 | printf( "CFA array alloc, fill %#hhx\n", fill ); | 
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| 83 | for ( i; 2 * dim ) { printf( "%#x ", p[i] ); } | 
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| 84 | printf( "\n" ); | 
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| 85 | // do not free | 
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| 86 |  | 
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| 87 |  | 
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| 88 | // resize, non-array types | 
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| 89 | printf( "\n" ); | 
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| 90 |  | 
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| 91 | p = (int *)realloc( p, dim * sizeof(*p) );                      // C realloc | 
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| 92 | for ( i; dim ) { p[i] = 0xdeadbeef; } | 
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| 93 | printf( "C   realloc\n" ); | 
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| 94 | for ( i; dim ) { printf( "%#x ", p[i] ); } | 
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| 95 | printf( "\n" ); | 
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| 96 |  | 
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| 97 | p = realloc( p, 2 * dim * sizeof(*p) );             // CFA realloc | 
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| 98 | for ( i; dim ~ 2 * dim ) { p[i] = 0x1010101; } | 
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| 99 | printf( "CFA realloc\n" ); | 
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| 100 | for ( i; 2 * dim ) { printf( "%#x ", p[i] ); } | 
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| 101 | printf( "\n" ); | 
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| 102 | // do not free | 
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| 103 |  | 
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| 104 |  | 
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| 105 | // resize, array types | 
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| 106 | printf( "\n" ); | 
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| 107 |  | 
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| 108 | p = alloc( p, dim );                                // CFA resize array alloc | 
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| 109 | for ( i; dim ) { p[i] = 0xdeadbeef; } | 
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| 110 | printf( "CFA resize alloc\n" ); | 
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| 111 | for ( i; dim ) { printf( "%#x ", p[i] ); } | 
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| 112 | printf( "\n" ); | 
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| 113 |  | 
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| 114 | p = alloc( p, 2 * dim );                            // CFA resize array alloc | 
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| 115 | for ( i; dim ~ 2 * dim ) { p[i] = 0x1010101; } | 
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| 116 | printf( "CFA resize array alloc\n" ); | 
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| 117 | for ( i; 2 * dim ) { printf( "%#x ", p[i] ); } | 
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| 118 | printf( "\n" ); | 
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| 119 |  | 
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| 120 | p = alloc( p, dim );                                // CFA array alloc | 
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| 121 | printf( "CFA resize array alloc\n" ); | 
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| 122 | for ( i; dim ) { printf( "%#x ", p[i] ); } | 
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| 123 | printf( "\n" ); | 
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| 124 |  | 
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| 125 | free( p ); | 
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| 126 | p = 0; | 
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| 127 |  | 
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| 128 | p = alloc( p, dim, fill );                          // CFA array alloc, fill | 
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| 129 | printf( "CFA resize array alloc, fill\n" ); | 
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| 130 | for ( i; dim ) { printf( "%#x ", p[i] ); } | 
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| 131 | printf( "\n" ); | 
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| 132 |  | 
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| 133 | p = alloc( p, 2 * dim, fill );                      // CFA array alloc, fill | 
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| 134 | printf( "CFA resize array alloc, fill\n" ); | 
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| 135 | for ( i; 2 * dim ) { printf( "%#x ", p[i] ); } | 
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| 136 | printf( "\n" ); | 
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| 137 |  | 
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| 138 | p = alloc( p, dim, fill );                          // CFA array alloc, fill | 
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| 139 | printf( "CFA resize array alloc, fill\n" ); | 
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| 140 | for ( i; dim ) { printf( "%#x ", p[i] );; } | 
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| 141 | printf( "\n" ); | 
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| 142 | free( p ); | 
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| 143 |  | 
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| 144 |  | 
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| 145 | struct Struct { int x; double y; }; | 
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| 146 | Struct st, st1, sta[dim], sta1[dim], * stp, * stp1; | 
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| 147 |  | 
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| 148 | // alignment, non-array types | 
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| 149 | printf( "\n" ); | 
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| 150 | enum { Alignment = 128 }; | 
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| 151 |  | 
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| 152 | stp = &(*(Struct*)memalign( Alignment, sizeof( *stp ) ) ){ 42, 42.5 }; // C memalign | 
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| 153 | assert( (uintptr_t)stp % Alignment == 0 ); | 
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| 154 | printf( "C   memalign %d %g\n", stp->x, stp->y ); | 
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| 155 | free( stp ); | 
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| 156 |  | 
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| 157 | stp = &(*memalign( Alignment )){ 42, 42.5 };          // CFA memalign | 
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| 158 | assert( (uintptr_t)stp % Alignment == 0 ); | 
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| 159 | printf( "CFA memalign %d %g\n", stp->x, stp->y ); | 
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| 160 | free( stp ); | 
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| 161 |  | 
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| 162 | posix_memalign( (void **)&stp, Alignment, sizeof( *stp ) ); // C posix_memalign | 
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| 163 | *stp = (Struct){ 42, 42.5 }; | 
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| 164 | assert( (uintptr_t)stp % Alignment == 0 ); | 
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| 165 | printf( "CFA posix_memalign %d %g\n", stp->x, stp->y ); | 
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| 166 | free( stp ); | 
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| 167 |  | 
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| 168 | posix_memalign( &stp, Alignment );                  // CFA posix_memalign | 
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| 169 | *stp = (Struct){ 42, 42.5 }; | 
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| 170 | assert( (uintptr_t)stp % Alignment == 0 ); | 
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| 171 | printf( "CFA posix_memalign %d %g\n", stp->x, stp->y ); | 
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| 172 | free( stp ); | 
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| 173 |  | 
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| 174 | stp = &(*aligned_alloc( Alignment )){ 42, 42.5 };     // CFA aligned_alloc | 
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| 175 | assert( (uintptr_t)stp % Alignment == 0 ); | 
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| 176 | printf( "CFA aligned_alloc %d %g\n", stp->x, stp->y ); | 
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| 177 | free( stp ); | 
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| 178 |  | 
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| 179 | stp = &(*align_alloc( Alignment )){ 42, 42.5 };       // CFA align_alloc | 
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| 180 | assert( (uintptr_t)stp % Alignment == 0 ); | 
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| 181 | printf( "CFA align_alloc %d %g\n", stp->x, stp->y ); | 
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| 182 | free( stp ); | 
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| 183 |  | 
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| 184 | stp = align_alloc( Alignment, fill );               // CFA memalign, fill | 
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| 185 | assert( (uintptr_t)stp % Alignment == 0 ); | 
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| 186 | printf( "CFA align_alloc fill %#x %a\n", stp->x, stp->y ); | 
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| 187 | free( stp ); | 
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| 188 |  | 
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| 189 |  | 
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| 190 | // alignment, array types | 
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| 191 | printf( "\n" ); | 
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| 192 |  | 
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| 193 | stp = align_alloc( Alignment, dim );                // CFA array memalign | 
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| 194 | assert( (uintptr_t)stp % Alignment == 0 ); | 
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| 195 | for ( i; dim ) { stp[i] = (Struct){ 42, 42.5 }; } | 
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| 196 | printf( "CFA array align_alloc\n" ); | 
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| 197 | for ( i; dim ) { printf( "%d %g, ", stp[i].x, stp[i].y ); } | 
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| 198 | printf( "\n" ); | 
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| 199 | free( stp ); | 
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| 200 |  | 
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| 201 | stp = align_alloc( Alignment, dim, fill );          // CFA array memalign, fill | 
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| 202 | assert( (uintptr_t)stp % Alignment == 0 ); | 
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| 203 | printf( "CFA array align_alloc, fill\n" ); | 
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| 204 | for ( i; dim ) { printf( "%#x %a, ", stp[i].x, stp[i].y ); } | 
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| 205 | printf( "\n" ); | 
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| 206 | free( stp ); | 
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| 207 |  | 
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| 208 |  | 
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| 209 | // data, non-array types | 
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| 210 | printf( "\n" ); | 
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| 211 |  | 
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| 212 | memset( &st, fill );                                // CFA memset, type safe | 
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| 213 | printf( "CFA memset %#x %a\n", st.x, st.y ); | 
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| 214 | memcpy( &st1, &st );                                // CFA memcpy, type safe | 
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| 215 | printf( "CFA memcpy %#x %a\n", st1.x, st1.y ); | 
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| 216 |  | 
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| 217 |  | 
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| 218 | // data, array types | 
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| 219 | printf( "\n" ); | 
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| 220 |  | 
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| 221 | amemset( sta, fill, dim );                                                      // CFA array memset, type safe | 
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| 222 | printf( "CFA array memset\n" ); | 
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| 223 | for ( i; dim ) { printf( "%#x %a, ", sta[i].x, sta[i].y ); } | 
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| 224 | printf( "\n" ); | 
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| 225 |  | 
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| 226 | amemcpy( sta1, sta, dim );                                                      // CFA array memcpy, type safe | 
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| 227 | printf( "CFA array memcpy\n" ); | 
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| 228 | for ( i; dim ) { printf( "%#x %a, ", sta1[i].x, sta1[i].y ); } | 
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| 229 | printf( "\n" ); | 
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| 230 |  | 
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| 231 |  | 
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| 232 | // new, non-array types | 
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| 233 | printf( "\n" ); | 
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| 234 |  | 
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| 235 | stp = new( 42, 42.5 ); | 
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| 236 | stp1 = new( 42, 42.5 ); | 
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| 237 | printf( "CFA new initialize\n%d %g %d %g\n", stp->x, stp->y, stp1->x, stp1->y ); | 
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| 238 | delete( stp, stp1 ); | 
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| 239 |  | 
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| 240 | // new, array types | 
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| 241 | stp = anew( dim, 42, 42.5 ); | 
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| 242 | printf( "CFA array new initialize\n" ); | 
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| 243 | for ( i; dim ) { printf( "%d %g, ", stp[i].x, stp[i].y ); } | 
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| 244 | printf( "\n" ); | 
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| 245 | stp1 = anew( dim, 42, 42.5 ); | 
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| 246 | for ( i; dim ) { printf( "%d %g, ", stp1[i].x, stp1[i].y ); } | 
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| 247 | printf( "\n" ); | 
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| 248 | adelete( dim, stp, dim, stp1 ); | 
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| 249 |  | 
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| 250 | // extras | 
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| 251 | printf( "\n" ); | 
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| 252 |  | 
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| 253 | float * fp = malloc() + 1; | 
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| 254 | printf( "pointer arithmetic %d\n", fp == fp - 1 ); | 
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| 255 | free( fp - 1 ); | 
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| 256 |  | 
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| 257 | p = foo( bar( baz( malloc(), 0 ), 0 ), 0 ); | 
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| 258 | *p = 0xdeadbeef; | 
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| 259 | printf( "CFA deep malloc %#x\n", *p ); | 
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| 260 | free( p ); | 
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| 261 |  | 
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| 262 | #ifdef ERR1 | 
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| 263 | stp = malloc(); | 
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| 264 | printf( "\nSHOULD FAIL\n" ); | 
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| 265 | p = realloc( stp, dim * sizeof( *stp ) ); | 
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| 266 | p = alloc( stp, dim * sizeof( *stp ) ); | 
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| 267 | p = memset( stp, 10 ); | 
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| 268 | p = memcpy( &st1, &st ); | 
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| 269 | #endif | 
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| 270 | } // main | 
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| 271 |  | 
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| 272 | // Local Variables: // | 
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| 273 | // tab-width: 4 // | 
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| 274 | // compile-command: "cfa alloc.cfa" // | 
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| 275 | // End: // | 
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