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[svn r362] Started merging the old 'test' dir as well as the newer 'tangotests' dir into 'tests/mini' and 'tests/minicomplex'.
author lindquist
date Sun, 13 Jul 2008 02:51:19 +0200
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340:351c0077d0b3 341:1bb99290e03a
1 // tries to implement a fairly complete variadic print function
2 module tangotests.vararg3;
3
4 extern(C) int printf(char*, ...);
5
6 struct User
7 {
8 char[] name;
9 char[] nick;
10 uint age;
11
12 char[] toString()
13 {
14 return nick ~ "(" ~ name ~ ")";
15 }
16 }
17
18 struct Infidel
19 {
20 char[] whocares;
21 }
22
23 class Obj
24 {
25 private char[] ty;
26
27 this(char[] t)
28 {
29 ty = t;
30 }
31
32 char[] toString()
33 {
34 return "Obj(" ~ ty ~ ")";
35 }
36 }
37
38 struct TLA
39 {
40 char[3] acronym;
41
42 char[] toString()
43 {
44 return acronym;
45 }
46 }
47
48 void main()
49 {
50 User user = User("Bob Doe", "bd", 47);
51 char[] str = user.toString();
52 printf("Direct call:\n%.*s\nBy typeinfo:\n", str.length, str.ptr);
53 print(user, '\n');
54
55 print("Without toString:\n");
56 Infidel inf = Infidel("not me");
57 print(inf, '\n');
58
59 print("Character arrays:\n");
60 print("hello world\n");
61
62 print("Signed integers:\n");
63 print(cast(byte)byte.max,' ',cast(short)short.max,' ',cast(int)int.max,' ',cast(long)long.max,'\n');
64
65 print("Unsigned integers:\n");
66 print(cast(ubyte)ubyte.max,' ',cast(ushort)ushort.max,' ',cast(uint)uint.max,' ',cast(ulong)ulong.max,'\n');
67
68 print("Floating point:\n");
69 print(cast(float)1.273f, ' ', cast(double)3.412367, ' ', cast(real)142.96731112, '\n');
70
71 print("Arrays:\n");
72 int[] ia1 = [1,2,3,4,5,6,7,8,9];
73 print(ia1, '\n');
74 float[] fa1 = [0.1f, 0.15f, 0.2f, 0.25f, 0.3f];
75 print(fa1, '\n');
76
77 print("Pointers:\n");
78 print(&user,'\n');
79 print(&inf,'\n');
80 print(&ia1,'\n');
81 print(&fa1,'\n');
82
83 print("Static arrays:\n");
84 int[5] isa1 = [1,2,4,8,16];
85 print(isa1,'\n');
86
87 print("Classes:\n");
88 Obj o = new Obj("foo");
89 print(o, '\n');
90
91 print("Mixed:\n");
92 print(123, ' ', 42.536f, " foobar ", ia1, ' ', user, '\n');
93 print(42, ' ', cast(byte)12, ' ', user, ' ', cast(short)1445, " foo\n");
94
95 print("International:\n");
96 print('æ','ø','å','\n');
97 print('Æ','Ø','Å','\n');
98 print("rød grød med fløde\n");
99 print("Heiße\n");
100
101 print("TLAs:\n");
102 TLA tla1 = TLA("FBI");
103 TLA tla2 = TLA("CIA");
104 TLA tla3 = TLA("TLA");
105 print(tla1);
106 print(tla2);
107 print(tla3, '\n');
108 print(tla1, tla2, tla3, '\n');
109 print(TLA("FBI"), TLA("CIA"), TLA("TLA"), '\n');
110
111 print("Done!\n");
112 }
113
114 private void* get_va_arg(TypeInfo ti, ref void* vp)
115 {
116 void* arg = vp;
117 vp = vp + ( ( ti.tsize + size_t.sizeof - 1 ) & ~( size_t.sizeof - 1 ) );
118 return arg;
119 }
120
121 void print(TypeInfo ti, void* arg)
122 {
123 if (ti == typeid(byte))
124 printf("%d", *cast(byte*)arg);
125 else if (ti == typeid(short))
126 printf("%d", *cast(short*)arg);
127 else if (ti == typeid(int))
128 printf("%d", *cast(int*)arg);
129 else if (ti == typeid(long))
130 printf("%lld", *cast(long*)arg);
131
132 else if (ti == typeid(ubyte))
133 printf("%u", *cast(ubyte*)arg);
134 else if (ti == typeid(ushort))
135 printf("%u", *cast(ushort*)arg);
136 else if (ti == typeid(uint))
137 printf("%u", *cast(uint*)arg);
138 else if (ti == typeid(ulong))
139 printf("%llu", *cast(ulong*)arg);
140
141 else if (ti == typeid(float))
142 printf("%f", *cast(float*)arg);
143 else if (ti == typeid(double))
144 printf("%f", *cast(double*)arg);
145 else if (ti == typeid(real)) // FIXME: 80bit?
146 {
147 version(LLVM_X86_FP80)
148 printf("%llf", *cast(real*)arg);
149 else
150 printf("%f", *cast(real*)arg);
151 }
152
153 else if (ti == typeid(char))
154 printf("%.*s", 1, arg);
155 else if (ti == typeid(wchar))
156 printf("%.*s", 2, arg);
157 else if (ti == typeid(dchar))
158 printf("%.*s", 4, arg);
159
160 else if (ti == typeid(char[]))
161 {
162 char[] str = *cast(char[]*)arg;
163 printf("%.*s", str.length, str.ptr);
164 }
165 else if (ti == typeid(wchar[]))
166 {
167 wchar[] str = *cast(wchar[]*)arg;
168 printf("%.*s", str.length*2, str.ptr);
169 }
170 else if (ti == typeid(dchar[]))
171 {
172 dchar[] str = *cast(dchar[]*)arg;
173 printf("%.*s", str.length*4, str.ptr);
174 }
175
176 else if (auto pti = cast(TypeInfo_Pointer)ti)
177 {
178 printf("%p", *cast(void**)arg);
179 }
180
181 else if (auto sti = cast(TypeInfo_Struct)ti)
182 {
183 if (sti.xtoString !is null)
184 {
185 char[] str = sti.xtoString(arg);
186 printf("%.*s", str.length, str.ptr);
187 }
188 else
189 {
190 char[] str = sti.toString();
191 printf("%.*s", str.length, str.ptr);
192 }
193 }
194
195 else if (auto ati = cast(TypeInfo_Array)ti)
196 {
197 auto tnext = ati.next;
198 size_t len = *cast(size_t*)arg;
199 void* ptr = *(cast(void**)arg + 1);
200 printf("[");
201 for(auto i=0; i<len; ++i)
202 {
203 print(tnext, get_va_arg(tnext, ptr));
204 if (i < len-1)
205 printf(",");
206 }
207 printf("]");
208 }
209
210 else if (auto cti = cast(TypeInfo_Class)ti)
211 {
212 auto o = *cast(Object*)arg;
213 char[] str = o.toString();
214 printf("%.*s", str.length, str.ptr);
215 }
216
217 // static arrays are converted to dynamic arrays when passed to variadic functions
218 else if (auto sati = cast(TypeInfo_StaticArray)ti)
219 {
220 assert(0, "static arrays not supported");
221 }
222
223 else if (auto aati = cast(TypeInfo_AssociativeArray)ti)
224 {
225 assert(0, "associative array not supported");
226 }
227
228 else
229 {
230 char[] str = ti.toString();
231 printf("typeinfo: %.*s\n", str.length, str.ptr);
232 str = ti.classinfo.name;
233 printf("typeinfo.classinfo: %.*s\n", str.length, str.ptr);
234 assert(0, "unsupported type ^");
235 }
236 }
237
238 void print(...)
239 {
240 void* argptr = _argptr;
241 assert(argptr);
242
243 foreach(i,ti; _arguments)
244 {
245 void* arg = get_va_arg(ti, argptr);
246 assert(arg);
247 print(ti, arg);
248 }
249 }