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loopctrl.cfa @ 82ff201a

Last change on this file since 82ff201a was 72abc90a, checked in by Peter A. Buhr <pabuhr@…>, 4 months ago
remove unnecessary assignment when looping with a structure type
Property mode set to `100644`
File size: 7.5 KB

Line
1	//
2	// Cforall Version 1.0.0 Copyright (C) 2015 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	// loopctrl.cfa --
8	//
9	// Author : Peter A. Buhr
10	// Created On : Wed Aug 8 18:32:59 2018
11	// Last Modified By : Peter A. Buhr
12	// Last Modified On : Thu Jun 27 11:00:09 2024
13	// Update Count : 161
14	//
15
16	#include <fstream.hfa>
17
18	void fred() {
19	// Test all possible loop syntax.
20
21	int s = 0, c = 10, i = 2;
22
23	for ( c ) { sout \| "A"; } sout \| nl;
24	for ( ~= c ) { sout \| "B"; } sout \| nl;
25	for ( -~ c ) { sout \| "C"; } sout \| nl;
26	for ( -~= c ) { sout \| "D"; } sout \| nl;
27
28	for ( s ~ c ) { sout \| "A"; } sout \| nl;
29	for ( s ~= c ) { sout \| "B"; } sout \| nl;
30	for ( s -~ c ) { sout \| "C"; } sout \| nl;
31	for ( s -~= c ) { sout \| "D"; } sout \| nl;
32
33	for ( s ~ c ~ i ) { sout \| "A"; } sout \| nl;
34	for ( s ~= c ~ i ) { sout \| "B"; } sout \| nl;
35	for ( s -~ c ~ i ) { sout \| "C"; } sout \| nl;
36	for ( s -~= c ~ i ) { sout \| "D"; } sout \| nl;
37
38	for ( j; c ) { sout \| j; } sout \| nl;
39	for ( j; ~= c ) { sout \| j; } sout \| nl;
40	for ( j; -~ c ) { sout \| j; } sout \| nl;
41	for ( j; -~= c ) { sout \| j; } sout \| nl;
42
43	for ( j; s ~ c ) { sout \| j; } sout \| nl;
44	for ( j; s ~= c ) { sout \| j; } sout \| nl;
45	for ( j; s -~ c ) { sout \| j; } sout \| nl;
46	for ( j; s -~= c ) { sout \| j; } sout \| nl;
47
48	for ( j; s ~ c ~ i ) { sout \| j; } sout \| nl;
49	for ( j; s ~= c ~ i ) { sout \| j; } sout \| nl;
50	for ( j; s -~ c ~ i ) { sout \| j; } sout \| nl;
51	for ( j; s -~= c ~ i ) { sout \| j; } sout \| nl;
52
53	// CANNOT DIRECTLY INITIALIZE INDEX VARIABLE, ONLY SINGLE LOOP INDEX VARIABLE IN DECLARATION
54
55	for ( j; c ) { sout \| j; } sout \| nl;
56	for ( int j; c ) { sout \| j; } sout \| nl;
57	for ( int j; ~= c ) { sout \| j; } sout \| nl;
58	for ( int j; -~ c ) { sout \| j; } sout \| nl;
59	for ( int j; -~= c ) { sout \| j; } sout \| nl;
60
61	for ( int j; s ~ c ) { sout \| j; } sout \| nl;
62	for ( int j; s ~= c ) { sout \| j; } sout \| nl;
63	for ( int j; s -~ c ) { sout \| j; } sout \| nl;
64	for ( int j; s -~= c ) { sout \| j; } sout \| nl;
65
66	for ( int j; s ~ c ~ i ) { sout \| j; } sout \| nl;
67	for ( int j; s ~= c ~ i ) { sout \| j; } sout \| nl;
68	for ( int j; s -~ c ~ i ) { sout \| j; } sout \| nl;
69	for ( int j; s -~= c ~ i ) { sout \| j; } sout \| nl;
70
71	for ( j; s ~ @ ) { if ( j == 10 ) break; sout \| j; } sout \| nl;
72	for ( j; @ -~ s ) { if ( j == -10 ) break; sout \| j; } sout \| nl;
73	for ( j; s ~ @ ~ i ) { if ( j == 10 ) break; sout \| j; } sout \| nl;
74	for ( j; @ -~ s ~ i ) { if ( j == -10 ) break; sout \| j; } sout \| nl;
75	for ( j; s ~ @ ~ @ ) { if ( j == 10 ) break; sout \| j; j += 1; } sout \| nl;
76
77	for ( int j; s ~ @ ) { if ( j == 10 ) break; sout \| j; j += 1; } sout \| nl;
78	for ( int j; @ -~ s ) { if ( j == -10 ) break; sout \| j; j -= 1; } sout \| nl;
79	for ( int j; s ~ @ ~ i ) { if ( j == 10 ) break; sout \| j; } sout \| nl;
80	for ( int j; @ -~ s ~ i ) { if ( j == -10 ) break; sout \| j; } sout \| nl;
81	for ( int j; s ~ @ ~ @ ) { if ( j == 10 ) break; sout \| j; j += 1; } sout \| nl;
82
83	// enum E { A, B, C, D };
84	// for ( e; A ~= C ) { sout \| j; }
85	// for ( e; A ~= D ) { sout \| j; }
86	// for ( e; A -~= D ~ 2 ) { sout \| j; }
87	// for ( e; E ) { sout \| j; }
88	// for ( e; -~ E ) { sout \| j; }
89	}
90
91	struct S { int i, j; };
92	void ?{}( S & s ) { s.[i, j] = 0; }
93	void ?{}( S & s, int i ) { s.[i, j] = [i, 0]; }
94	void ?{}( S & s, int i, int j ) { s.[i, j] = [i, j]; }
95	void ?{}( S & s, zero_t ) { s.[i, j] = 0; }
96	void ?{}( S & s, one_t ) { s.[i, j] = 1; }
97	int ?<?( S t1, S t2 ) { return t1.i < t2.i && t1.j < t2.j; }
98	int ?<=?( S t1, S t2 ) { return t1.i <= t2.i && t1.j <= t2.j; }
99	int ?>?( S t1, S t2 ) { return t1.i > t2.i && t1.j > t2.j; }
100	int ?>=?( S t1, S t2 ) { return t1.i >= t2.i && t1.j >= t2.j; }
101	S ?+=?( S & t1, S t2 ) { t1.i += t2.i; t1.j += t2.j; return t1; }
102	S ?+=?( S & t, one_t ) { t.i += 1; t.j += 1; return t; }
103	S ?-=?( S & t1, S t2 ) { t1.i -= t2.i; t1.j -= t2.j; return t1; }
104	S ?-=?( S & t, one_t ) { t.i -= 1; t.j -= 1; return t; }
105	ofstream & ?\|?( ofstream & os, S v ) { return os \| '(' \| v.i \| v.j \| ')'; }
106	void & ?\|?( ofstream & os, S v ) { (ofstream &)(os \| v); ends( os ); }
107
108	int main() {
109	// Test some loop options.
110
111	sout \| nlOff; // turn off auto newline
112	while () { sout \| "empty"; break; } sout \| nl;
113	do { sout \| "empty"; break; } while (); sout \| nl;
114	for () { sout \| "empty"; break; } sout \| nl \| nl;
115
116	for ( 0 ) { sout \| "A"; } sout \| "zero" \| nl;
117	for ( 1 ) { sout \| "A"; } sout \| nl;
118	for ( 10 ) { sout \| "A"; } sout \| nl;
119	for ( ~= 10 ) { sout \| "A"; } sout \| nl;
120	for ( 1 ~= 10 ~ 2 ) { sout \| "B"; } sout \| nl;
121	for ( 1 -~= 10 ~ 2 ) { sout \| "C"; } sout \| nl;
122	for ( 0.5 ~ 5.5 ) { sout \| "D"; } sout \| nl;
123	for ( 0.5 -~ 5.5 ) { sout \| "E"; } sout \| nl \| nl;
124
125	for ( i; 10 ) { sout \| i; } sout \| nl;
126	for ( i; ~= 10 ) { sout \| i; } sout \| nl;
127	for ( i; 1 ~= 10 ~ 2 ) { sout \| i; } sout \| nl;
128	for ( i; 1 -~= 10 ~ 2 ) { sout \| i; } sout \| nl;
129	for ( i; 0.5 ~ 5.5 ) { sout \| i; } sout \| nl;
130	for ( i; 0.5 -~ 5.5 ) { sout \| i; } sout \| nl;
131	for ( ui; 2u ~= 10u ~ 2u ) { sout \| ui; } sout \| nl;
132	for ( ui; 2u -~= 10u ~ 2u ) { sout \| ui; } sout \| nl \| nl;
133
134	// @ means do nothing
135	for ( i; 1 ~ @ ) {
136	if ( i > 10 ) break;
137	sout \| i;
138	} sout \| nl;
139	for ( i; @ -~ 10 ) {
140	if ( i < 0 ) break;
141	sout \| i;
142	} sout \| nl;
143	for ( i; 2 ~ @ ~ 2 ) {
144	if ( i > 10 ) break;
145	sout \| i;
146	} sout \| nl;
147	for ( i; 2.1 ~ @ ~ @ ) {
148	if ( i > 10.5 ) break;
149	sout \| i;
150	i += 1.7;
151	} sout \| nl;
152	for ( i; @ -~ 10 ~ 2 ) {
153	if ( i < 0 ) break;
154	sout \| i;
155	} sout \| nl;
156	for ( i; 12.1 ~ @ ~ @ ) {
157	if ( i < 2.5 ) break;
158	sout \| i;
159	i -= 1.7;
160	} sout \| nl \| nl;
161
162	enum { N = 10 };
163	for ( N ) { sout \| "N"; } sout \| nl;
164	for ( i; N ) { sout \| i; } sout \| nl;
165	for ( i; ~= N ) { sout \| i; } sout \| nl;
166	for ( i; -~= N ) { sout \| i; } sout \| nl \| nl;
167
168	const int start = 3, comp = 10, inc = 2;
169	for ( i; start ~ comp ~ inc + 1 ) { sout \| i; } sout \| nl \| nl;
170
171	for ( i; 10 : j; -5 ~ @ ) { sout \| i \| j; } sout \| nl;
172	for ( i; 10 : j; @ -~ -5 ) { sout \| i \| j; } sout \| nl;
173	for ( i; 10 : j; -5 ~ @ ~ 2 ) { sout \| i \| j; } sout \| nl;
174	for ( i; 10 : j; @ -~ -5 ~ 2 ) { sout \| i \| j; } sout \| nl \| nl;
175
176	for ( j; -5 ~ @ : i; 10 ) { sout \| i \| j; } sout \| nl;
177	for ( j; @ -~ -5 : i; 10 ) { sout \| i \| j; } sout \| nl;
178	for ( j; -5 ~ @ ~ 2 : i; 10 ) { sout \| i \| j; } sout \| nl;
179	for ( j; @ -~ -5 ~ 2 : i; 10 ) { sout \| i \| j; } sout \| nl \| nl;
180
181	for ( j; @ -~ -5 ~ 2 : i; 10 : k; 1.5 ~ @ ) { sout \| i \| j \| k; } sout \| nl;
182	for ( j; @ -~ -5 ~ 2 : k; 1.5 ~ @ : i; 10 ) { sout \| i \| j \| k; } sout \| nl;
183	for ( k; 1.5 ~ @ : j; @ -~ -5 ~ 2 : i; 10 ) { sout \| i \| j \| k; } sout \| nl;
184
185	for ( S s = (S){0}; s < (S){10,10}; s += (S){1} ) { sout \| s; } sout \| nl;
186	for ( s; (S){10,10} ) { sout \| s; } sout \| nl;
187	sout \| nl;
188	for ( s; (S){0} ~ (S){10,10} ) { sout \| s; } sout \| nl;
189	for ( s; (S){0} ~ (S){10,10} ~ (S){1} ) { sout \| s; } sout \| nl;
190	for ( s; (S){0} ~= (S){10,10} ) { sout \| s; } sout \| nl;
191	for ( s; (S){0} ~= (S){10,10} ~ (S){1} ) { sout \| s; } sout \| nl;
192	sout \| nl;
193	for ( s; (S){0} -~ (S){10,10} ) { sout \| s; } sout \| nl;
194	for ( s; (S){0} -~ (S){10,10} ~ (S){1} ) { sout \| s; } sout \| nl;
195	for ( s; (S){0} -~= (S){10,10} ) { sout \| s; } sout \| nl;
196	for ( s; (S){0} -~= (S){10,10} ~ (S){1} ) { sout \| s; } sout \| nl \| nl;
197
198	fred();
199	}
200
201	// Local Variables: //
202	// tab-width: 4 //
203	// compile-command: "cfa loopctrl.cfa" //
204	// End: //

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