Source file
test/literal.go
1
2
3
4
5
6
7
8
9 package main
10
11 var nbad int
12
13 func assert(cond bool, msg string) {
14 if !cond {
15 if nbad == 0 {
16 print("BUG")
17 }
18 nbad++
19 print(" ", msg)
20 }
21 }
22
23 func equal(a, b float32) bool {
24 return a == b
25 }
26
27 func main() {
28
29 var t bool = true
30 var f bool = false
31 assert(t == !f, "bool")
32
33
34 var i00 int8 = 0
35 var i01 int8 = 1
36 var i02 int8 = -1
37 var i03 int8 = 127
38 var i04 int8 = -127
39 var i05 int8 = -128
40 var i06 int8 = +127
41 assert(i01 == i00+1, "i01")
42 assert(i02 == -i01, "i02")
43 assert(i03 == -i04, "i03")
44 assert(-(i05+1) == i06, "i05")
45
46
47 var i10 int16 = 0
48 var i11 int16 = 1
49 var i12 int16 = -1
50 var i13 int16 = 32767
51 var i14 int16 = -32767
52 var i15 int16 = -32768
53 var i16 int16 = +32767
54 assert(i11 == i10+1, "i11")
55 assert(i12 == -i11, "i12")
56 assert(i13 == -i14, "i13")
57 assert(-(i15+1) == i16, "i15")
58
59
60 var i20 int32 = 0
61 var i21 int32 = 1
62 var i22 int32 = -1
63 var i23 int32 = 2147483647
64 var i24 int32 = -2147483647
65 var i25 int32 = -2147483648
66 var i26 int32 = +2147483647
67 assert(i21 == i20+1, "i21")
68 assert(i22 == -i21, "i22")
69 assert(i23 == -i24, "i23")
70 assert(-(i25+1) == i26, "i25")
71 assert(i23 == (1<<31)-1, "i23 size")
72
73
74 var i30 int64 = 0
75 var i31 int64 = 1
76 var i32 int64 = -1
77 var i33 int64 = 9223372036854775807
78 var i34 int64 = -9223372036854775807
79 var i35 int64 = -9223372036854775808
80 var i36 int64 = +9223372036854775807
81 assert(i31 == i30+1, "i31")
82 assert(i32 == -i31, "i32")
83 assert(i33 == -i34, "i33")
84 assert(-(i35+1) == i36, "i35")
85 assert(i33 == (1<<63)-1, "i33 size")
86
87
88 var u00 uint8 = 0
89 var u01 uint8 = 1
90 var u02 uint8 = 255
91 var u03 uint8 = +255
92 assert(u01 == u00+1, "u01")
93 assert(u02 == u03, "u02")
94 assert(u03 == (1<<8)-1, "u03 size")
95
96
97 var u10 uint16 = 0
98 var u11 uint16 = 1
99 var u12 uint16 = 65535
100 var u13 uint16 = +65535
101 assert(u11 == u10+1, "u11")
102 assert(u12 == u13, "u12")
103
104
105 var u20 uint32 = 0
106 var u21 uint32 = 1
107 var u22 uint32 = 4294967295
108 var u23 uint32 = +4294967295
109 assert(u21 == u20+1, "u21")
110 assert(u22 == u23, "u22")
111
112
113 var u30 uint64 = 0
114 var u31 uint64 = 1
115 var u32 uint64 = 18446744073709551615
116 var u33 uint64 = +18446744073709551615
117 _, _, _, _ = u30, u31, u32, u33
118
119
120 var f00 float32 = 3.14159
121 var f01 float32 = -3.14159
122 var f02 float32 = +3.14159
123 var f03 float32 = 0.0
124 var f04 float32 = .0
125 var f05 float32 = 0.
126 var f06 float32 = -0.0
127 var f07 float32 = 1e10
128 var f08 float32 = -1e10
129 var f09 float32 = 1e-10
130 var f10 float32 = 1e+10
131 var f11 float32 = 1.e-10
132 var f12 float32 = 1.e+10
133 var f13 float32 = .1e-10
134 var f14 float32 = .1e+10
135 var f15 float32 = 1.1e-10
136 var f16 float32 = 1.1e+10
137 assert(f01 == -f00, "f01")
138 assert(f02 == -f01, "f02")
139 assert(f03 == f04, "f03")
140 assert(f04 == f05, "f04")
141 assert(f05 == f06, "f05")
142 assert(f07 == -f08, "f07")
143 assert(equal(f09, 1/f10), "f09")
144 assert(f11 == f09, "f11")
145 assert(f12 == f10, "f12")
146 assert(equal(f13, f09/10.0), "f13")
147 assert(equal(f14, f12/10.0), "f14")
148 assert(equal(f15, f16/1e20), "f15")
149
150
151 var c0 uint8 = 'a'
152 var c1 uint8 = 'ä'
153 var c2 uint8 = '\a'
154 var c3 uint8 = '\b'
155 var c4 uint8 = '\f'
156 var c5 uint8 = '\n'
157 var c6 uint8 = '\r'
158 var c7 uint8 = '\t'
159 var c8 uint8 = '\v'
160
161 var c9 uint16 = '本'
162 assert(c0 == 0x61, "c0")
163 assert(c1 == 0xe4, "c1")
164 assert(c2 == 0x07, "c2")
165 assert(c3 == 0x08, "c3")
166 assert(c4 == 0x0c, "c4")
167 assert(c5 == 0x0a, "c4")
168 assert(c6 == 0x0d, "c6")
169 assert(c7 == 0x09, "c7")
170 assert(c8 == 0x0b, "c8")
171 assert(c9 == 0x672c, "c9")
172
173 var c00 uint8 = '\000'
174 var c01 uint8 = '\007'
175 var c02 uint8 = '\177'
176 var c03 uint8 = '\377'
177 assert(c00 == 0, "c00")
178 assert(c01 == 7, "c01")
179 assert(c02 == 127, "c02")
180 assert(c03 == 255, "c03")
181
182 var cx0 uint8 = '\x00'
183 var cx1 uint8 = '\x0f'
184 var cx2 uint8 = '\xff'
185 assert(cx0 == 0, "cx0")
186 assert(cx1 == 15, "cx1")
187 assert(cx2 == 255, "cx2")
188
189 var cu0 uint16 = '\u1234'
190 var cu1 uint32 = '\U00101234'
191 assert(cu0 == 0x1234, "cu0")
192 assert(cu1 == 0x101234, "cu1")
193
194
195 var s0 string = ""
196 var s1 string = "hellô"
197 assert(s1[0] == 'h', "s1-0")
198 assert(s1[4] == 0xc3, "s1-4")
199 assert(s1[5] == 0xb4, "s1-5")
200 var s2 string = "\a\b\f\n\r\t\v"
201 _, _ = s0, s2
202
203 var s00 string = "\000"
204 var s01 string = "\007"
205 var s02 string = "\377"
206 assert(s00[0] == 0, "s00")
207 assert(s01[0] == 7, "s01")
208 assert(s02[0] == 255, "s02")
209
210 var x00 string = "\x00"
211 var x01 string = "\x0f"
212 var x02 string = "\xff"
213 assert(x00[0] == 0, "x00")
214 assert(x01[0] == 15, "x01")
215 assert(x02[0] == 255, "x02")
216
217
218 var sj0 string = "日本語"
219 var sj1 string = "\u65e5\u672c\u8a9e"
220 var sj2 string = "\U000065e5\U0000672c\U00008a9e"
221 var sj3 string = "\xe6\x97\xa5\xe6\x9c\xac\xe8\xaa\x9e"
222 assert(sj0 == sj1, "sj1")
223 assert(sj0 == sj2, "sj2")
224 assert(sj0 == sj3, "sj3")
225
226 if nbad > 0 {
227 panic("literal failed")
228 }
229 }
230
View as plain text