print

1 auto spec = NumericSpec.human;
2 stringBuf buffer;
3 
4 void check(double num, string value)
5 {
6     assert(buffer.print(num, spec).data == value, buffer.data); buffer.reset;
7 }
8 
9 check(-0.0, "-0.0");
10 check(0.0, "0.0");
11 check(-0.01, "-0.01");
12 check(0.0125, "0.0125");
13 check(0.000003, "0.000003");
14 check(-3e-7, "-3e-7");
15 check(123456.0, "123456.0");
16 check(123456.1, "123456.1");
17 check(12.3456, "12.3456");
18 check(-0.123456, "-0.123456");
19 check(0.1234567, "0.1234567");
20 check(0.01234567, "0.01234567");
21 check(0.001234567, "0.001234567");
22 check(1.234567e-4, "1.234567e-4");
23 check(-1234567.0, "-1.234567e+6");
24 check(123456.7890123, "123456.7890123");
25 check(1234567.890123, "1.234567890123e+6");
26 check(1234567890123.0, "1.234567890123e+12");
27 check(0.30000000000000004, "0.30000000000000004");
28 check(0.030000000000000002, "0.030000000000000002");
29 check(0.0030000000000000005, "0.0030000000000000005");
30 check(3.0000000000000003e-4, "3.0000000000000003e-4");
31 check(+double.nan, "nan");
32 check(-double.nan, "nan");
33 check(+double.infinity, "+inf");
34 check(-double.infinity, "-inf");
35 
36 spec.separatorChar = ',';
37 
38 check(-0.0, "-0.0");
39 check(0.0, "0.0");
40 check(-0.01, "-0.01");
41 check(0.0125, "0.0125");
42 check(0.000003, "0.000003");
43 check(-3e-7, "-3e-7");
44 check(123456.0, "123,456.0");
45 check(123456e5, "12,345,600,000.0");
46 check(123456.1, "123,456.1");
47 check(12.3456, "12.3456");
48 check(-0.123456, "-0.123456");
49 check(0.1234567, "0.1234567");
50 check(0.01234567, "0.01234567");
51 check(0.001234567, "0.001234567");
52 check(1.234567e-4, "0.0001234567");
53 check(-1234567.0, "-1,234,567.0");
54 check(123456.7890123, "123,456.7890123");
55 check(1234567.890123, "1,234,567.890123");
56 check(123456789012.0, "123,456,789,012.0");
57 check(1234567890123.0, "1.234567890123e+12");
58 check(0.30000000000000004, "0.30000000000000004");
59 check(0.030000000000000002, "0.030000000000000002");
60 check(0.0030000000000000005, "0.0030000000000000005");
61 check(3.0000000000000003e-4, "0.00030000000000000003");
62 check(3.0000000000000005e-6, "0.0000030000000000000005");
63 check(3.0000000000000004e-7, "3.0000000000000004e-7");
64 check(+double.nan, "nan");
65 check(-double.nan, "nan");
66 check(+double.infinity, "+inf");
67 check(-double.infinity, "-inf");
68 
69 spec.separatorChar = '_';
70 spec.separatorCount = 2;
71 check(123456e5, "1_23_45_60_00_00.0");
72 
73 spec.plus = true;
74 check(0.0125, "+0.0125");
75 check(-0.0125, "-0.0125");