3 // Copyright 2019 The Go Authors. All rights reserved.
4 // Use of this source code is governed by a BSD-style
5 // license that can be found in the LICENSE file.
7 // Test Go2 literal syntax for basic types.
8 // Avoid running gofmt on this file to preserve the
9 // test cases with upper-case prefixes (0B, 0O, 0X).
15 func assert(cond bool) {
17 panic("assertion failed")
21 func equal(x, y interface{}) bool {
23 fmt.Printf("%g != %g\n", x, y)
34 assert(0_1_2i == complex(0, 12)) // decimal digits despite leading 0 for backward-compatibility
35 assert(00089i == complex(0, 89)) // decimal digits despite leading 0 for backward-compatibility
38 assert(1_000_000 == 1000000)
39 assert(1_000i == complex(0, 1000))
44 assert(0x_cafe_f00d == 0xcafef00d)
45 assert(0x_cafei == complex(0, 0xcafe))
51 assert(0o_1_2i == complex(0, 0o12))
57 assert(0b_1_0i == complex(0, 2))
64 assert(1_0.0_1 == 10.01)
65 assert(1_0.0_1i == complex(0, 10.01))
67 assert(0.e1_0 == 0.0e10)
68 assert(.0e1_0 == 0.0e10)
69 assert(1_0.e1_0 == 10.0e10)
70 assert(.0_1e1_0 == 0.01e10)
71 assert(1_0.0_1e1_0 == 10.01e10)
72 assert(1_0.0_1e1_0i == complex(0, 10.01e10))
75 assert(equal(0x1p-2, 0.25))
76 assert(equal(0x2.p10, 2048.0))
77 assert(equal(0x1.Fp+0, 1.9375))
78 assert(equal(0x.8p-0, 0.5))
79 assert(equal(0x1FFFp-16, 0.1249847412109375))
80 assert(equal(0x1.fffffffffffffp1023, 1.7976931348623157e308))
81 assert(equal(0x1.fffffffffffffp1023i, complex(0, 1.7976931348623157e308)))
83 assert(equal(0x_1p-2, 0.25))
84 assert(equal(0x2.p1_0, 2048.0))
85 assert(equal(0x1_0.Fp+0, 16.9375))
86 assert(equal(0x_0.8p-0, 0.5))
87 assert(equal(0x_1FF_Fp-16, 0.1249847412109375))
88 assert(equal(0x1.f_ffff_ffff_ffffp1_023, 1.7976931348623157e308))
89 assert(equal(0x1.f_ffff_ffff_ffffp1_023i, complex(0, 1.7976931348623157e308)))