source: libcfa/src/stdlib.cfa@ fd0ba75

ADT arm-eh ast-experimental enum forall-pointer-decay jacob/cs343-translation new-ast-unique-expr pthread-emulation qualifiedEnum
Last change on this file since fd0ba75 was 94429f8, checked in by Peter A. Buhr <pabuhr@…>, 5 years ago

formatting, simplify "free" with multiple arguments, make "delete" inline
  • Property mode set to 100644
File size: 7.0 KB
Line 
1//
2// Cforall Version 1.0.0 Copyright (C) 2016 University of Waterloo
3//
4// The contents of this file are covered under the licence agreement in the
5// file "LICENCE" distributed with Cforall.
6//
7// stdlib.c --
8//
9// Author : Peter A. Buhr
10// Created On : Thu Jan 28 17:10:29 2016
11// Last Modified By : Peter A. Buhr
12// Last Modified On : Thu Nov 12 07:46:09 2020
13// Update Count : 503
14//
15
16#include "stdlib.hfa"
17
18//---------------------------------------
19
20#define _XOPEN_SOURCE 600 // posix_memalign, *rand48
21#include <string.h> // memcpy, memset
22//#include <math.h> // fabsf, fabs, fabsl
23#include <complex.h> // _Complex_I
24#include <assert.h>
25
26//---------------------------------------
27
28// Cforall allocation/deallocation and constructor/destructor, array types
29
30forall( dtype T | sized(T), ttype TT | { void ?{}( T &, TT ); } )
31T * anew( size_t dim, TT p ) {
32 T * arr = alloc( dim );
33 for ( unsigned int i = 0; i < dim; i += 1 ) {
34 (arr[i]){ p }; // run constructor
35 } // for
36 return arr;
37} // anew
38
39forall( dtype T | sized(T) | { void ^?{}( T & ); } )
40void adelete( T arr[] ) {
41 if ( arr ) { // ignore null
42 size_t dim = malloc_size( arr ) / sizeof( T );
43 for ( int i = dim - 1; i >= 0; i -= 1 ) { // reverse allocation order, must be unsigned
44 ^(arr[i]){}; // run destructor
45 } // for
46 free( arr );
47 } // if
48} // adelete
49
50forall( dtype T | sized(T) | { void ^?{}( T & ); }, ttype TT | { void adelete( TT ); } )
51void adelete( T arr[], TT rest ) {
52 if ( arr ) { // ignore null
53 size_t dim = malloc_size( arr ) / sizeof( T );
54 for ( int i = dim - 1; i >= 0; i -= 1 ) { // reverse allocation order, must be unsigned
55 ^(arr[i]){}; // run destructor
56 } // for
57 free( arr );
58 } // if
59 adelete( rest );
60} // adelete
61
62//---------------------------------------
63
64float _Complex strto( const char sptr[], char ** eptr ) {
65 float re, im;
66 char * eeptr;
67 re = strtof( sptr, &eeptr );
68 if ( sptr == eeptr ) { if ( eptr != 0 ) *eptr = eeptr; return 0.0f + 0.0f * _Complex_I; }
69 im = strtof( eeptr, &eeptr );
70 if ( sptr == eeptr ) { if ( eptr != 0 ) *eptr = eeptr; return 0.0f + 0.0f * _Complex_I; }
71 if ( *eeptr != 'i' ) { if ( eptr != 0 ) *eptr = eeptr; return 0.0f + 0.0f * _Complex_I; }
72 return re + im * _Complex_I;
73} // strto
74
75double _Complex strto( const char sptr[], char ** eptr ) {
76 double re, im;
77 char * eeptr;
78 re = strtod( sptr, &eeptr );
79 if ( sptr == eeptr ) { if ( eptr != 0 ) *eptr = eeptr; return 0.0 + 0.0 * _Complex_I; }
80 im = strtod( eeptr, &eeptr );
81 if ( sptr == eeptr ) { if ( eptr != 0 ) *eptr = eeptr; return 0.0 + 0.0 * _Complex_I; }
82 if ( *eeptr != 'i' ) { if ( eptr != 0 ) *eptr = eeptr; return 0.0 + 0.0 * _Complex_I; }
83 return re + im * _Complex_I;
84} // strto
85
86long double _Complex strto( const char sptr[], char ** eptr ) {
87 long double re, im;
88 char * eeptr;
89 re = strtold( sptr, &eeptr );
90 if ( sptr == eeptr ) { if ( eptr != 0 ) *eptr = eeptr; return 0.0L + 0.0L * _Complex_I; }
91 im = strtold( eeptr, &eeptr );
92 if ( sptr == eeptr ) { if ( eptr != 0 ) *eptr = eeptr; return 0.0L + 0.0L * _Complex_I; }
93 if ( *eeptr != 'i' ) { if ( eptr != 0 ) *eptr = eeptr; return 0.0L + 0.0L * _Complex_I; }
94 return re + im * _Complex_I;
95} // strto
96
97//---------------------------------------
98
99forall( otype E | { int ?<?( E, E ); } ) {
100 E * bsearch( E key, const E * vals, size_t dim ) {
101 int cmp( const void * t1, const void * t2 ) {
102 return *(E *)t1 < *(E *)t2 ? -1 : *(E *)t2 < *(E *)t1 ? 1 : 0;
103 } // cmp
104 return (E *)bsearch( &key, vals, dim, sizeof(E), cmp );
105 } // bsearch
106
107 size_t bsearch( E key, const E * vals, size_t dim ) {
108 E * result = bsearch( key, vals, dim );
109 return result ? result - vals : dim; // pointer subtraction includes sizeof(E)
110 } // bsearch
111
112 size_t bsearchl( E key, const E * vals, size_t dim ) {
113 size_t l = 0, m, h = dim;
114 while ( l < h ) {
115 m = (l + h) / 2;
116 if ( (E &)(vals[m]) < key ) { // cast away const
117 l = m + 1;
118 } else {
119 h = m;
120 } // if
121 } // while
122 return l;
123 } // bsearchl
124
125 E * bsearchl( E key, const E * vals, size_t dim ) {
126 size_t posn = bsearchl( key, vals, dim );
127 return (E *)(&vals[posn]); // cast away const
128 } // bsearchl
129
130 size_t bsearchu( E key, const E * vals, size_t dim ) {
131 size_t l = 0, m, h = dim;
132 while ( l < h ) {
133 m = (l + h) / 2;
134 if ( ! ( key < (E &)(vals[m]) ) ) { // cast away const
135 l = m + 1;
136 } else {
137 h = m;
138 } // if
139 } // while
140 return l;
141 } // bsearchu
142
143 E * bsearchu( E key, const E * vals, size_t dim ) {
144 size_t posn = bsearchu( key, vals, dim );
145 return (E *)(&vals[posn]);
146 } // bsearchu
147
148
149 void qsort( E * vals, size_t dim ) {
150 int cmp( const void * t1, const void * t2 ) {
151 return *(E *)t1 < *(E *)t2 ? -1 : *(E *)t2 < *(E *)t1 ? 1 : 0;
152 } // cmp
153 qsort( vals, dim, sizeof(E), cmp );
154 } // qsort
155} // distribution
156
157
158forall( otype K, otype E | { int ?<?( K, K ); K getKey( const E & ); } ) {
159 E * bsearch( K key, const E * vals, size_t dim ) {
160 int cmp( const void * t1, const void * t2 ) {
161 return *(K *)t1 < getKey( *(E *)t2 ) ? -1 : getKey( *(E *)t2 ) < *(K *)t1 ? 1 : 0;
162 } // cmp
163 return (E *)bsearch( &key, vals, dim, sizeof(E), cmp );
164 } // bsearch
165
166 size_t bsearch( K key, const E * vals, size_t dim ) {
167 E * result = bsearch( key, vals, dim );
168 return result ? result - vals : dim; // pointer subtraction includes sizeof(E)
169 } // bsearch
170
171 size_t bsearchl( K key, const E * vals, size_t dim ) {
172 size_t l = 0, m, h = dim;
173 while ( l < h ) {
174 m = (l + h) / 2;
175 if ( getKey( vals[m] ) < key ) {
176 l = m + 1;
177 } else {
178 h = m;
179 } // if
180 } // while
181 return l;
182 } // bsearchl
183
184 E * bsearchl( K key, const E * vals, size_t dim ) {
185 size_t posn = bsearchl( key, vals, dim );
186 return (E *)(&vals[posn]); // cast away const
187 } // bsearchl
188
189 size_t bsearchu( K key, const E * vals, size_t dim ) {
190 size_t l = 0, m, h = dim;
191 while ( l < h ) {
192 m = (l + h) / 2;
193 if ( ! ( key < getKey( vals[m] ) ) ) {
194 l = m + 1;
195 } else {
196 h = m;
197 } // if
198 } // while
199 return l;
200 } // bsearchu
201
202 E * bsearchu( K key, const E * vals, size_t dim ) {
203 size_t posn = bsearchu( key, vals, dim );
204 return (E *)(&vals[posn]);
205 } // bsearchu
206} // distribution
207
208//---------------------------------------
209
210extern "C" { // override C version
211 void srandom( unsigned int seed ) { srand48( (long int)seed ); }
212 long int random( void ) { return mrand48(); } // GENERATES POSITIVE AND NEGATIVE VALUES
213} // extern "C"
214
215float random( void ) { return (float)drand48(); } // cast otherwise float uses lrand48
216double random( void ) { return drand48(); }
217float _Complex random( void ) { return (float)drand48() + (float _Complex)(drand48() * _Complex_I); }
218double _Complex random( void ) { return drand48() + (double _Complex)(drand48() * _Complex_I); }
219long double _Complex random( void ) { return (long double)drand48() + (long double _Complex)(drand48() * _Complex_I); }
220
221//---------------------------------------
222
223bool threading_enabled(void) __attribute__((weak)) {
224 return false;
225}
226
227// Local Variables: //
228// tab-width: 4 //
229// End: //
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