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