| // Translated from C to Rust. The original C code can be found at |
| // https://github.com/ulfjack/ryu and carries the following license: |
| // |
| // Copyright 2018 Ulf Adams |
| // |
| // The contents of this file may be used under the terms of the Apache License, |
| // Version 2.0. |
| // |
| // (See accompanying file LICENSE-Apache or copy at |
| // http://www.apache.org/licenses/LICENSE-2.0) |
| // |
| // Alternatively, the contents of this file may be used under the terms of |
| // the Boost Software License, Version 1.0. |
| // (See accompanying file LICENSE-Boost or copy at |
| // https://www.boost.org/LICENSE_1_0.txt) |
| // |
| // Unless required by applicable law or agreed to in writing, this software |
| // is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| // KIND, either express or implied. |
| |
| #![allow(dead_code)] |
| #![allow( |
| clippy::approx_constant, |
| clippy::cast_possible_wrap, |
| clippy::cast_sign_loss, |
| clippy::excessive_precision, |
| clippy::unreadable_literal, |
| clippy::wildcard_imports |
| )] |
| |
| #[path = "../src/common.rs"] |
| mod common; |
| |
| use common::*; |
| |
| #[test] |
| fn test_decimal_length9() { |
| assert_eq!(1, decimal_length9(0)); |
| assert_eq!(1, decimal_length9(1)); |
| assert_eq!(1, decimal_length9(9)); |
| assert_eq!(2, decimal_length9(10)); |
| assert_eq!(2, decimal_length9(99)); |
| assert_eq!(3, decimal_length9(100)); |
| assert_eq!(3, decimal_length9(999)); |
| assert_eq!(9, decimal_length9(999999999)); |
| } |
| |
| #[test] |
| fn test_ceil_log2_pow5() { |
| assert_eq!(1, ceil_log2_pow5(0)); |
| assert_eq!(3, ceil_log2_pow5(1)); |
| assert_eq!(5, ceil_log2_pow5(2)); |
| assert_eq!(7, ceil_log2_pow5(3)); |
| assert_eq!(10, ceil_log2_pow5(4)); |
| assert_eq!(8192, ceil_log2_pow5(3528)); |
| } |
| |
| #[test] |
| fn test_log10_pow2() { |
| assert_eq!(0, log10_pow2(0)); |
| assert_eq!(0, log10_pow2(1)); |
| assert_eq!(0, log10_pow2(2)); |
| assert_eq!(0, log10_pow2(3)); |
| assert_eq!(1, log10_pow2(4)); |
| assert_eq!(496, log10_pow2(1650)); |
| } |
| |
| #[test] |
| fn test_log10_pow5() { |
| assert_eq!(0, log10_pow5(0)); |
| assert_eq!(0, log10_pow5(1)); |
| assert_eq!(1, log10_pow5(2)); |
| assert_eq!(2, log10_pow5(3)); |
| assert_eq!(2, log10_pow5(4)); |
| assert_eq!(1831, log10_pow5(2620)); |
| } |
| |
| #[test] |
| fn test_float_to_bits() { |
| assert_eq!(0, 0.0_f32.to_bits()); |
| assert_eq!(0x40490fda, 3.1415926_f32.to_bits()); |
| } |
| |
| #[test] |
| fn test_double_to_bits() { |
| assert_eq!(0, 0.0_f64.to_bits()); |
| assert_eq!( |
| 0x400921FB54442D18, |
| 3.1415926535897932384626433_f64.to_bits(), |
| ); |
| } |