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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-16 19:23:18 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-16 19:23:18 +0000 |
commit | 43a123c1ae6613b3efeed291fa552ecd909d3acf (patch) | |
tree | fd92518b7024bc74031f78a1cf9e454b65e73665 /test/literal2.go | |
parent | Initial commit. (diff) | |
download | golang-1.20-upstream.tar.xz golang-1.20-upstream.zip |
Adding upstream version 1.20.14.upstream/1.20.14upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'test/literal2.go')
-rw-r--r-- | test/literal2.go | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/test/literal2.go b/test/literal2.go new file mode 100644 index 0000000..f552e33 --- /dev/null +++ b/test/literal2.go @@ -0,0 +1,90 @@ +// run + +// Copyright 2019 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// Test Go2 literal syntax for basic types. +// Avoid running gofmt on this file to preserve the +// test cases with upper-case prefixes (0B, 0O, 0X). + +package main + +import "fmt" + +func assert(cond bool) { + if !cond { + panic("assertion failed") + } +} + +func equal(x, y interface{}) bool { + if x != y { + fmt.Printf("%g != %g\n", x, y) + return false + } + return true +} + +func main() { + // 0-octals + assert(0_1 == 01) + assert(012 == 012) + assert(0_1_2 == 012) + assert(0_1_2i == complex(0, 12)) // decimal digits despite leading 0 for backward-compatibility + assert(00089i == complex(0, 89)) // decimal digits despite leading 0 for backward-compatibility + + // decimals + assert(1_000_000 == 1000000) + assert(1_000i == complex(0, 1000)) + + // hexadecimals + assert(0x_1 == 0x1) + assert(0x1_2 == 0x12) + assert(0x_cafe_f00d == 0xcafef00d) + assert(0x_cafei == complex(0, 0xcafe)) + + // octals + assert(0o_1 == 01) + assert(0o12 == 012) + assert(0o_1_2 == 012) + assert(0o_1_2i == complex(0, 0o12)) + + // binaries + assert(0b_1 == 1) + assert(0b10 == 2) + assert(0b_1_0 == 2) + assert(0b_1_0i == complex(0, 2)) + + // decimal floats + assert(0. == 0.0) + assert(.0 == 0.0) + assert(1_0. == 10.0) + assert(.0_1 == 0.01) + assert(1_0.0_1 == 10.01) + assert(1_0.0_1i == complex(0, 10.01)) + + assert(0.e1_0 == 0.0e10) + assert(.0e1_0 == 0.0e10) + assert(1_0.e1_0 == 10.0e10) + assert(.0_1e1_0 == 0.01e10) + assert(1_0.0_1e1_0 == 10.01e10) + assert(1_0.0_1e1_0i == complex(0, 10.01e10)) + + // hexadecimal floats + assert(equal(0x1p-2, 0.25)) + assert(equal(0x2.p10, 2048.0)) + assert(equal(0x1.Fp+0, 1.9375)) + assert(equal(0x.8p-0, 0.5)) + assert(equal(0x1FFFp-16, 0.1249847412109375)) + assert(equal(0x1.fffffffffffffp1023, 1.7976931348623157e308)) + assert(equal(0x1.fffffffffffffp1023i, complex(0, 1.7976931348623157e308))) + + assert(equal(0x_1p-2, 0.25)) + assert(equal(0x2.p1_0, 2048.0)) + assert(equal(0x1_0.Fp+0, 16.9375)) + assert(equal(0x_0.8p-0, 0.5)) + assert(equal(0x_1FF_Fp-16, 0.1249847412109375)) + assert(equal(0x1.f_ffff_ffff_ffffp1_023, 1.7976931348623157e308)) + assert(equal(0x1.f_ffff_ffff_ffffp1_023i, complex(0, 1.7976931348623157e308))) +} |