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1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file | |
2 // for details. All rights reserved. Use of this source code is governed by a | |
3 // BSD-style license that can be found in the LICENSE file. | |
4 // Test basic integer operations. | |
5 | |
6 main() { | |
7 Expect.equals("NaN", (double.NAN).toStringAsPrecision(1)); | |
8 Expect.equals("Infinity", (double.INFINITY).toStringAsPrecision(2)); | |
9 Expect.equals("-Infinity", (-double.INFINITY).toStringAsPrecision(2)); | |
10 Expect.equals("0.000555000000000000", (0.000555).toStringAsPrecision(15)); | |
11 Expect.equals("5.55000000000000e-7", (0.000000555).toStringAsPrecision(15)); | |
12 Expect.equals("-5.55000000000000e-7", (-0.000000555).toStringAsPrecision(15)); | |
13 Expect.equals("1e+8", (123456789.0).toStringAsPrecision(1)); | |
14 Expect.equals("123456789", (123456789.0).toStringAsPrecision(9)); | |
15 Expect.equals("1.2345679e+8", (123456789.0).toStringAsPrecision(8)); | |
16 Expect.equals("1.234568e+8", (123456789.0).toStringAsPrecision(7)); | |
17 Expect.equals("-1.234568e+8", (-123456789.0).toStringAsPrecision(7)); | |
18 Expect.equals("-1.2e-9", (-.0000000012345).toStringAsPrecision(2)); | |
19 Expect.equals("-1.2e-8", (-.000000012345).toStringAsPrecision(2)); | |
20 Expect.equals("-1.2e-7", (-.00000012345).toStringAsPrecision(2)); | |
21 Expect.equals("-0.0000012", (-.0000012345).toStringAsPrecision(2)); | |
22 Expect.equals("-0.000012", (-.000012345).toStringAsPrecision(2)); | |
23 Expect.equals("-0.00012", (-.00012345).toStringAsPrecision(2)); | |
24 Expect.equals("-0.0012", (-.0012345).toStringAsPrecision(2)); | |
25 Expect.equals("-0.012", (-.012345).toStringAsPrecision(2)); | |
26 Expect.equals("-0.12", (-.12345).toStringAsPrecision(2)); | |
27 Expect.equals("-1.2", (-1.2345).toStringAsPrecision(2)); | |
28 Expect.equals("-12", (-12.345).toStringAsPrecision(2)); | |
29 Expect.equals("-1.2e+2", (-123.45).toStringAsPrecision(2)); | |
30 Expect.equals("-1.2e+3", (-1234.5).toStringAsPrecision(2)); | |
31 Expect.equals("-1.2e+4", (-12345.0).toStringAsPrecision(2)); | |
32 Expect.equals("-1.235e+4", (-12345.67).toStringAsPrecision(4)); | |
33 Expect.equals("-1.234e+4", (-12344.67).toStringAsPrecision(4)); | |
34 Expect.equals("-0.0", (-0.0).toStringAsPrecision(2)); | |
35 Expect.equals("-0", (-0.0).toStringAsPrecision(1)); | |
36 // Test that we round up even when the last digit generated is even. | |
37 // dtoa does not do this in its original form. | |
38 Expect.equals("1.3", 1.25.toStringAsPrecision(2)); | |
39 Expect.equals("1.4", 1.35.toStringAsPrecision(2)); | |
40 } | |
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