| 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 : Sun Feb 16 09:21:13 2020
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| 13 | // Update Count : 405
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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 = '\xde';
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| 30 | int * p, * p1;
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| 31 |
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| 32 | // allocation, non-array types
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| 33 |
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| 34 | p = (int *)malloc( sizeof(*p) ); // C malloc, type unsafe
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| 35 | *p = 0xdeadbeef;
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| 36 | printf( "C malloc %#x\n", *p );
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| 37 | free( p );
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| 38 |
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| 39 | p = malloc(); // CFA malloc, type safe
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| 40 | *p = 0xdeadbeef;
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| 41 | printf( "CFA malloc %#x\n", *p );
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| 42 | free( p );
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| 43 |
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| 44 | p = alloc(); // CFA alloc, type safe
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| 45 | *p = 0xdeadbeef;
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| 46 | printf( "CFA alloc %#x\n", *p );
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| 47 | free( p );
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| 48 |
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| 49 | p = alloc_set( fill ); // CFA alloc, fill
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| 50 | printf( "CFA alloc, fill %08x\n", *p );
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| 51 | free( p );
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| 52 |
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| 53 | p = alloc_set( 3 ); // CFA alloc, fill
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| 54 | printf( "CFA alloc, fill %d\n", *p );
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| 55 | free( p );
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| 56 |
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| 57 |
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| 58 | // allocation, array types
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| 59 | printf( "\n" );
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| 60 |
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| 61 | p = (int *)calloc( dim, sizeof( *p ) ); // C array calloc, type unsafe
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| 62 | printf( "C array calloc, fill 0\n" );
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| 63 | for ( i; dim ) { printf( "%#x ", p[i] ); }
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| 64 | printf( "\n" );
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| 65 | free( p );
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| 66 |
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| 67 | p = calloc( dim ); // CFA array calloc, type safe
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| 68 | printf( "CFA array calloc, fill 0\n" );
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| 69 | for ( i; dim ) { printf( "%#x ", p[i] ); }
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| 70 | printf( "\n" );
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| 71 | free( p );
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| 72 |
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| 73 | p = alloc( dim ); // CFA array alloc, type safe
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| 74 | for ( i; dim ) { p[i] = 0xdeadbeef; }
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| 75 | printf( "CFA array alloc, no fill\n" );
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| 76 | for ( i; dim ) { printf( "%#x ", p[i] ); }
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| 77 | printf( "\n" );
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| 78 | free( p );
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| 79 |
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| 80 | p = alloc_set( 2 * dim, fill ); // CFA array alloc, fill
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| 81 | printf( "CFA array alloc, fill %#hhx\n", fill );
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| 82 | for ( i; 2 * dim ) { printf( "%#x ", p[i] ); }
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| 83 | printf( "\n" );
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| 84 | free( p );
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| 85 |
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| 86 | p = alloc_set( 2 * dim, 0xdeadbeef ); // CFA array alloc, fill
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| 87 | printf( "CFA array alloc, fill %#hhx\n", 0xdeadbeef );
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| 88 | for ( i; 2 * dim ) { printf( "%#x ", p[i] ); }
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| 89 | printf( "\n" );
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| 90 | // do not free
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| 91 |
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| 92 | p1 = alloc_set( 2 * dim, p ); // CFA array alloc, fill
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| 93 | printf( "CFA array alloc, fill from array\n" );
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| 94 | for ( i; 2 * dim ) { printf( "%#x %#x, ", p[i], p1[i] ); }
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| 95 | free( p1 );
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| 96 | printf( "\n" );
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| 97 |
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| 98 |
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| 99 | // resize, non-array types
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| 100 | printf( "\n" );
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| 101 |
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| 102 | p = (int *)realloc( p, dim * sizeof(*p) ); // C realloc
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| 103 | printf( "C realloc\n" );
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| 104 | for ( i; dim ) { printf( "%#x ", p[i] ); }
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| 105 | printf( "\n" );
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| 106 | // do not free
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| 107 |
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| 108 | p = realloc( p, 2 * dim * sizeof(*p) ); // CFA realloc
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| 109 | for ( i; dim ~ 2 * dim ) { p[i] = 0x1010101; }
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| 110 | printf( "CFA realloc\n" );
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| 111 | for ( i; 2 * dim ) { printf( "%#x ", p[i] ); }
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| 112 | printf( "\n" );
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| 113 | // do not free
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| 114 |
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| 115 |
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| 116 | // resize, array types
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| 117 | printf( "\n" );
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| 118 |
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| 119 | p = alloc( p, dim ); // CFA resize array alloc
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| 120 | for ( i; dim ) { p[i] = 0xdeadbeef; }
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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 | // do not free
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| 125 |
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| 126 | p = alloc( p, 2 * dim ); // CFA resize array alloc
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| 127 | for ( i; dim ~ 2 * dim ) { p[i] = 0x1010101; } // fill upper part
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| 128 | printf( "CFA resize array alloc\n" );
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| 129 | for ( i; 2 * dim ) { printf( "%#x ", p[i] ); }
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| 130 | printf( "\n" );
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| 131 | // do not free
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| 132 |
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| 133 | p = alloc( p, dim ); // CFA resize array alloc
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| 134 | printf( "CFA resize array alloc\n" );
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| 135 | for ( i; dim ) { printf( "%#x ", p[i] ); }
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| 136 | printf( "\n" );
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| 137 | // do not free
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| 138 |
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| 139 | p = alloc_set( p, 3 * dim, fill ); // CFA resize array alloc, fill
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| 140 | printf( "CFA resize array alloc\n" );
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| 141 | for ( i; 3 * dim ) { printf( "%#x ", p[i] ); }
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| 142 | printf( "\n" );
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| 143 | // do not free
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| 144 |
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| 145 | p = alloc_set( p, dim, fill ); // CFA resize array alloc, fill
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| 146 | printf( "CFA resize array alloc\n" );
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| 147 | for ( i; dim ) { printf( "%#x ", p[i] ); }
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| 148 | printf( "\n" );
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| 149 | // do not free
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| 150 |
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| 151 | p = alloc_set( p, 3 * dim, fill ); // CFA resize array alloc, fill
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| 152 | printf( "CFA resize array alloc, fill\n" );
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| 153 | for ( i; 3 * dim ) { printf( "%#x ", p[i] );; }
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| 154 | printf( "\n" );
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| 155 | free( p );
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| 156 |
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| 157 |
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| 158 | struct Struct { int x; double y; };
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| 159 | Struct st, st1, sta[dim], sta1[dim], * stp, * stp1;
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| 160 |
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| 161 | // alignment, non-array types
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| 162 | printf( "\n" );
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| 163 | enum { Alignment = 128 };
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| 164 |
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| 165 | stp = &(*(Struct*)memalign( Alignment, sizeof( *stp ) ) ){ 42, 42.5 }; // C memalign
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| 166 | assert( (uintptr_t)stp % Alignment == 0 );
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| 167 | printf( "C memalign %d %g\n", stp->x, stp->y );
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| 168 | free( stp );
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| 169 |
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| 170 | stp = &(*memalign( Alignment )){ 42, 42.5 }; // CFA memalign
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| 171 | assert( (uintptr_t)stp % Alignment == 0 );
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| 172 | printf( "CFA memalign %d %g\n", stp->x, stp->y );
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| 173 | free( stp );
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| 174 |
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| 175 | posix_memalign( (void **)&stp, Alignment, sizeof( *stp ) ); // C posix_memalign
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| 176 | *stp = (Struct){ 42, 42.5 };
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| 177 | assert( (uintptr_t)stp % Alignment == 0 );
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| 178 | printf( "CFA posix_memalign %d %g\n", stp->x, stp->y );
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| 179 | free( stp );
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| 180 |
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| 181 | posix_memalign( &stp, Alignment ); // CFA posix_memalign
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| 182 | *stp = (Struct){ 42, 42.5 };
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| 183 | assert( (uintptr_t)stp % Alignment == 0 );
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| 184 | printf( "CFA posix_memalign %d %g\n", stp->x, stp->y );
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| 185 | free( stp );
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| 186 |
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| 187 | stp = &(*alloc_align( Alignment)){ 42, 42.5 }; // CFA alloc_align
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| 188 | assert( (uintptr_t)stp % Alignment == 0 );
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| 189 | printf( "CFA alloc_align %d %g\n", stp->x, stp->y );
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| 190 | free( stp );
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| 191 |
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| 192 | stp = &(*alloc_align( Alignment )){ 42, 42.5 }; // CFA alloc_align
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| 193 | assert( (uintptr_t)stp % Alignment == 0 );
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| 194 | printf( "CFA alloc_align %d %g\n", stp->x, stp->y );
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| 195 | free( stp );
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| 196 |
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| 197 | stp = alloc_align_set( Alignment, fill ); // CFA memalign, fill
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| 198 | assert( (uintptr_t)stp % Alignment == 0 );
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| 199 | printf( "CFA alloc_align fill %#x %a\n", stp->x, stp->y );
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| 200 | free( stp );
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| 201 |
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| 202 | stp = alloc_align_set( Alignment, (Struct){ 42, 42.5 } ); // CFA memalign, fill
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| 203 | assert( (uintptr_t)stp % Alignment == 0 );
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| 204 | printf( "CFA alloc_align fill %d %g\n", stp->x, stp->y );
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| 205 | // do not free
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| 206 |
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| 207 | stp = &(*alloc_align( stp, 4096 )){ 42, 42.5 }; // CFA realign
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| 208 | assert( (uintptr_t)stp % 4096 == 0 );
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| 209 | printf( "CFA alloc_align %d %g\n", stp->x, stp->y );
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| 210 | free( stp );
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| 211 |
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| 212 |
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| 213 | // alignment, array types
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| 214 | printf( "\n" );
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| 215 |
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| 216 | stp = alloc_align( Alignment, dim ); // CFA array memalign
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| 217 | assert( (uintptr_t)stp % Alignment == 0 );
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| 218 | for ( i; dim ) { stp[i] = (Struct){ 42, 42.5 }; }
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| 219 | printf( "CFA array alloc_align\n" );
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| 220 | for ( i; dim ) { printf( "%d %g, ", stp[i].x, stp[i].y ); }
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| 221 | printf( "\n" );
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| 222 | free( stp );
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| 223 |
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| 224 | stp = alloc_align_set( Alignment, dim, fill ); // CFA array memalign, fill
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| 225 | assert( (uintptr_t)stp % Alignment == 0 );
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| 226 | printf( "CFA array alloc_align, fill\n" );
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| 227 | for ( i; dim ) { printf( "%#x %a, ", stp[i].x, stp[i].y ); }
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| 228 | printf( "\n" );
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| 229 | free( stp );
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| 230 |
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| 231 | stp = alloc_align_set( Alignment, dim, (Struct){ 42, 42.5 } ); // CFA array memalign, fill
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| 232 | assert( (uintptr_t)stp % Alignment == 0 );
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| 233 | printf( "CFA array alloc_align, fill\n" );
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| 234 | for ( i; dim ) { printf( "%d %g, ", stp[i].x, stp[i].y ); }
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| 235 | printf( "\n" );
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| 236 | // do not free
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| 237 |
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| 238 | stp1 = alloc_align_set( Alignment, dim, stp ); // CFA array memalign, fill
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| 239 | assert( (uintptr_t)stp % Alignment == 0 );
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| 240 | printf( "CFA array alloc_align, fill array\n" );
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| 241 | for ( i; dim ) { printf( "%d %g, ", stp1[i].x, stp1[i].y ); }
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| 242 | printf( "\n" );
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| 243 | free( stp1 );
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| 244 |
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| 245 | stp = alloc_align( stp, 4096, dim ); // CFA aligned realloc array
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| 246 | assert( (uintptr_t)stp % 4096 == 0 );
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| 247 | for ( i; dim ) { stp[i] = (Struct){ 42, 42.5 }; }
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| 248 | printf( "CFA realloc array alloc_align\n" );
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| 249 | for ( i; dim ) { printf( "%d %g, ", stp[i].x, stp[i].y ); }
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| 250 | printf( "\n" );
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| 251 | free( stp );
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| 252 |
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| 253 |
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| 254 | // data, non-array types
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| 255 | printf( "\n" );
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| 256 |
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| 257 | memset( &st, fill ); // CFA memset, type safe
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| 258 | printf( "CFA memset %#x %a\n", st.x, st.y );
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| 259 | memcpy( &st1, &st ); // CFA memcpy, type safe
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| 260 | printf( "CFA memcpy %#x %a\n", st1.x, st1.y );
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| 261 |
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| 262 |
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| 263 | // data, array types
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| 264 | printf( "\n" );
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| 265 |
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| 266 | amemset( sta, fill, dim ); // CFA array memset, type safe
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| 267 | printf( "CFA array memset\n" );
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| 268 | for ( i; dim ) { printf( "%#x %a, ", sta[i].x, sta[i].y ); }
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| 269 | printf( "\n" );
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| 270 |
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| 271 | amemcpy( sta1, sta, dim ); // CFA array memcpy, type safe
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| 272 | printf( "CFA array memcpy\n" );
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| 273 | for ( i; dim ) { printf( "%#x %a, ", sta1[i].x, sta1[i].y ); }
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| 274 | printf( "\n" );
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| 275 |
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| 276 |
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| 277 | // new, non-array types
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| 278 | printf( "\n" );
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| 279 |
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| 280 | stp = new( 42, 42.5 );
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| 281 | stp1 = new( 42, 42.5 );
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| 282 | printf( "CFA new initialize\n%d %g %d %g\n", stp->x, stp->y, stp1->x, stp1->y );
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| 283 | delete( stp, stp1 );
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| 284 |
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| 285 | // new, array types
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| 286 | stp = anew( dim, 42, 42.5 );
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| 287 | printf( "CFA array new initialize\n" );
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| 288 | for ( i; dim ) { printf( "%d %g, ", stp[i].x, stp[i].y ); }
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| 289 | printf( "\n" );
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| 290 | stp1 = anew( dim, 42, 42.5 );
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| 291 | for ( i; dim ) { printf( "%d %g, ", stp1[i].x, stp1[i].y ); }
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| 292 | printf( "\n" );
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| 293 | adelete( dim, stp, dim, stp1 );
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| 294 |
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| 295 | // extras
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| 296 | printf( "\n" );
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| 297 |
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| 298 | float * fp = malloc() + 1;
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| 299 | printf( "pointer arithmetic %d\n", fp == fp - 1 );
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| 300 | free( fp - 1 );
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| 301 |
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| 302 | p = foo( bar( baz( malloc(), 0 ), 0 ), 0 );
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| 303 | *p = 0xdeadbeef;
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| 304 | printf( "CFA deep malloc %#x\n", *p );
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| 305 | free( p );
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| 306 |
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| 307 | #ifdef ERR1
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| 308 | stp = malloc();
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| 309 | printf( "\nSHOULD FAIL\n" );
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| 310 | p = realloc( stp, dim * sizeof( *stp ) );
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| 311 | p = alloc( stp, dim * sizeof( *stp ) );
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| 312 | p = memset( stp, 10 );
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| 313 | p = memcpy( &st1, &st );
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| 314 | #endif
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| 315 | } // main
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| 316 |
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| 317 | // Local Variables: //
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| 318 | // tab-width: 4 //
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| 319 | // compile-command: "cfa alloc.cfa" //
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| 320 | // End: //
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