1 // Translated from C to Rust. The original C code can be found at
2 // https://github.com/ulfjack/ryu and carries the following license:
3 //
4 // Copyright 2018 Ulf Adams
5 //
6 // The contents of this file may be used under the terms of the Apache License,
7 // Version 2.0.
8 //
9 // (See accompanying file LICENSE-Apache or copy at
10 // http://www.apache.org/licenses/LICENSE-2.0)
11 //
12 // Alternatively, the contents of this file may be used under the terms of
13 // the Boost Software License, Version 1.0.
14 // (See accompanying file LICENSE-Boost or copy at
15 // https://www.boost.org/LICENSE_1_0.txt)
16 //
17 // Unless required by applicable law or agreed to in writing, this software
18 // is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
19 // KIND, either express or implied.
20
21 #![allow(dead_code)]
22
23 #[path = "../src/common.rs"]
24 mod common;
25
26 #[path = "../src/d2s_full_table.rs"]
27 mod d2s_full_table;
28
29 #[path = "../src/d2s_intrinsics.rs"]
30 mod d2s_intrinsics;
31
32 #[path = "../src/d2s.rs"]
33 mod d2s;
34
35 #[path = "../src/f2s_intrinsics.rs"]
36 mod f2s_intrinsics;
37
38 #[path = "../src/f2s.rs"]
39 mod f2s;
40
41 #[path = "../src/s2f.rs"]
42 mod s2f;
43
44 #[path = "../src/parse.rs"]
45 mod parse;
46
47 use crate::parse::Error;
48 use crate::s2f::s2f;
49
50 impl PartialEq for Error {
eq(&self, other: &Self) -> bool51 fn eq(&self, other: &Self) -> bool {
52 *self as u8 == *other as u8
53 }
54 }
55
56 #[test]
test_basic()57 fn test_basic() {
58 assert_eq!(0.0, s2f(b"0").unwrap());
59 assert_eq!(-0.0, s2f(b"-0").unwrap());
60 assert_eq!(1.0, s2f(b"1").unwrap());
61 assert_eq!(-1.0, s2f(b"-1").unwrap());
62 assert_eq!(123456792.0, s2f(b"123456789").unwrap());
63 assert_eq!(299792448.0, s2f(b"299792458").unwrap());
64 }
65
66 #[test]
test_min_max()67 fn test_min_max() {
68 assert_eq!(1e-45, s2f(b"1e-45").unwrap());
69 assert_eq!(f32::MIN_POSITIVE, s2f(b"1.1754944e-38").unwrap());
70 assert_eq!(f32::MAX, s2f(b"3.4028235e+38").unwrap());
71 }
72
73 #[test]
test_mantissa_rounding_overflow()74 fn test_mantissa_rounding_overflow() {
75 assert_eq!(1.0, s2f(b"0.999999999").unwrap());
76 assert_eq!(f32::INFINITY, s2f(b"3.4028236e+38").unwrap());
77 }
78