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-rw-r--r--vendor/serde_json/tests/lexical/float.rs581
1 files changed, 0 insertions, 581 deletions
diff --git a/vendor/serde_json/tests/lexical/float.rs b/vendor/serde_json/tests/lexical/float.rs
deleted file mode 100644
index c87e7e1..0000000
--- a/vendor/serde_json/tests/lexical/float.rs
+++ /dev/null
@@ -1,581 +0,0 @@
-// Adapted from https://github.com/Alexhuszagh/rust-lexical.
-
-use crate::lexical::float::ExtendedFloat;
-use crate::lexical::rounding::round_nearest_tie_even;
-use std::{f32, f64};
-
-// NORMALIZE
-
-fn check_normalize(mant: u64, exp: i32, shift: u32, r_mant: u64, r_exp: i32) {
- let mut x = ExtendedFloat { mant, exp };
- assert_eq!(x.normalize(), shift);
- assert_eq!(
- x,
- ExtendedFloat {
- mant: r_mant,
- exp: r_exp
- }
- );
-}
-
-#[test]
-fn normalize_test() {
- // F32
- // 0
- check_normalize(0, 0, 0, 0, 0);
-
- // min value
- check_normalize(1, -149, 63, 9223372036854775808, -212);
-
- // 1.0e-40
- check_normalize(71362, -149, 47, 10043308644012916736, -196);
-
- // 1.0e-20
- check_normalize(12379400, -90, 40, 13611294244890214400, -130);
-
- // 1.0
- check_normalize(8388608, -23, 40, 9223372036854775808, -63);
-
- // 1e20
- check_normalize(11368684, 43, 40, 12500000250510966784, 3);
-
- // max value
- check_normalize(16777213, 104, 40, 18446740775174668288, 64);
-
- // F64
-
- // min value
- check_normalize(1, -1074, 63, 9223372036854775808, -1137);
-
- // 1.0e-250
- check_normalize(6448907850777164, -883, 11, 13207363278391631872, -894);
-
- // 1.0e-150
- check_normalize(7371020360979573, -551, 11, 15095849699286165504, -562);
-
- // 1.0e-45
- check_normalize(6427752177035961, -202, 11, 13164036458569648128, -213);
-
- // 1.0e-40
- check_normalize(4903985730770844, -185, 11, 10043362776618688512, -196);
-
- // 1.0e-20
- check_normalize(6646139978924579, -119, 11, 13611294676837537792, -130);
-
- // 1.0
- check_normalize(4503599627370496, -52, 11, 9223372036854775808, -63);
-
- // 1e20
- check_normalize(6103515625000000, 14, 11, 12500000000000000000, 3);
-
- // 1e40
- check_normalize(8271806125530277, 80, 11, 16940658945086007296, 69);
-
- // 1e150
- check_normalize(5503284107318959, 446, 11, 11270725851789228032, 435);
-
- // 1e250
- check_normalize(6290184345309700, 778, 11, 12882297539194265600, 767);
-
- // max value
- check_normalize(9007199254740991, 971, 11, 18446744073709549568, 960);
-}
-
-// ROUND
-
-fn check_round_to_f32(mant: u64, exp: i32, r_mant: u64, r_exp: i32) {
- let mut x = ExtendedFloat { mant, exp };
- x.round_to_native::<f32, _>(round_nearest_tie_even);
- assert_eq!(
- x,
- ExtendedFloat {
- mant: r_mant,
- exp: r_exp
- }
- );
-}
-
-#[test]
-fn round_to_f32_test() {
- // This is lossy, so some of these values are **slightly** rounded.
-
- // underflow
- check_round_to_f32(9223372036854775808, -213, 0, -149);
-
- // min value
- check_round_to_f32(9223372036854775808, -212, 1, -149);
-
- // 1.0e-40
- check_round_to_f32(10043308644012916736, -196, 71362, -149);
-
- // 1.0e-20
- check_round_to_f32(13611294244890214400, -130, 12379400, -90);
-
- // 1.0
- check_round_to_f32(9223372036854775808, -63, 8388608, -23);
-
- // 1e20
- check_round_to_f32(12500000250510966784, 3, 11368684, 43);
-
- // max value
- check_round_to_f32(18446740775174668288, 64, 16777213, 104);
-
- // overflow
- check_round_to_f32(18446740775174668288, 65, 16777213, 105);
-}
-
-fn check_round_to_f64(mant: u64, exp: i32, r_mant: u64, r_exp: i32) {
- let mut x = ExtendedFloat { mant, exp };
- x.round_to_native::<f64, _>(round_nearest_tie_even);
- assert_eq!(
- x,
- ExtendedFloat {
- mant: r_mant,
- exp: r_exp
- }
- );
-}
-
-#[test]
-fn round_to_f64_test() {
- // This is lossy, so some of these values are **slightly** rounded.
-
- // underflow
- check_round_to_f64(9223372036854775808, -1138, 0, -1074);
-
- // min value
- check_round_to_f64(9223372036854775808, -1137, 1, -1074);
-
- // 1.0e-250
- check_round_to_f64(15095849699286165504, -562, 7371020360979573, -551);
-
- // 1.0e-150
- check_round_to_f64(15095849699286165504, -562, 7371020360979573, -551);
-
- // 1.0e-45
- check_round_to_f64(13164036458569648128, -213, 6427752177035961, -202);
-
- // 1.0e-40
- check_round_to_f64(10043362776618688512, -196, 4903985730770844, -185);
-
- // 1.0e-20
- check_round_to_f64(13611294676837537792, -130, 6646139978924579, -119);
-
- // 1.0
- check_round_to_f64(9223372036854775808, -63, 4503599627370496, -52);
-
- // 1e20
- check_round_to_f64(12500000000000000000, 3, 6103515625000000, 14);
-
- // 1e40
- check_round_to_f64(16940658945086007296, 69, 8271806125530277, 80);
-
- // 1e150
- check_round_to_f64(11270725851789228032, 435, 5503284107318959, 446);
-
- // 1e250
- check_round_to_f64(12882297539194265600, 767, 6290184345309700, 778);
-
- // max value
- check_round_to_f64(18446744073709549568, 960, 9007199254740991, 971);
-
- // Bug fixes
- // 1.2345e-308
- check_round_to_f64(10234494226754558294, -1086, 2498655817078750, -1074);
-}
-
-fn assert_normalized_eq(mut x: ExtendedFloat, mut y: ExtendedFloat) {
- x.normalize();
- y.normalize();
- assert_eq!(x, y);
-}
-
-#[test]
-fn from_float() {
- let values: [f32; 26] = [
- 1e-40, 2e-40, 1e-35, 2e-35, 1e-30, 2e-30, 1e-25, 2e-25, 1e-20, 2e-20, 1e-15, 2e-15, 1e-10,
- 2e-10, 1e-5, 2e-5, 1.0, 2.0, 1e5, 2e5, 1e10, 2e10, 1e15, 2e15, 1e20, 2e20,
- ];
- for value in &values {
- assert_normalized_eq(
- ExtendedFloat::from_float(*value),
- ExtendedFloat::from_float(*value as f64),
- );
- }
-}
-
-// TO
-
-// Sample of interesting numbers to check during standard test builds.
-const INTEGERS: [u64; 32] = [
- 0, // 0x0
- 1, // 0x1
- 7, // 0x7
- 15, // 0xF
- 112, // 0x70
- 119, // 0x77
- 127, // 0x7F
- 240, // 0xF0
- 247, // 0xF7
- 255, // 0xFF
- 2032, // 0x7F0
- 2039, // 0x7F7
- 2047, // 0x7FF
- 4080, // 0xFF0
- 4087, // 0xFF7
- 4095, // 0xFFF
- 65520, // 0xFFF0
- 65527, // 0xFFF7
- 65535, // 0xFFFF
- 1048560, // 0xFFFF0
- 1048567, // 0xFFFF7
- 1048575, // 0xFFFFF
- 16777200, // 0xFFFFF0
- 16777207, // 0xFFFFF7
- 16777215, // 0xFFFFFF
- 268435440, // 0xFFFFFF0
- 268435447, // 0xFFFFFF7
- 268435455, // 0xFFFFFFF
- 4294967280, // 0xFFFFFFF0
- 4294967287, // 0xFFFFFFF7
- 4294967295, // 0xFFFFFFFF
- 18446744073709551615, // 0xFFFFFFFFFFFFFFFF
-];
-
-#[test]
-fn to_f32_test() {
- // underflow
- let x = ExtendedFloat {
- mant: 9223372036854775808,
- exp: -213,
- };
- assert_eq!(x.into_float::<f32>(), 0.0);
-
- // min value
- let x = ExtendedFloat {
- mant: 9223372036854775808,
- exp: -212,
- };
- assert_eq!(x.into_float::<f32>(), 1e-45);
-
- // 1.0e-40
- let x = ExtendedFloat {
- mant: 10043308644012916736,
- exp: -196,
- };
- assert_eq!(x.into_float::<f32>(), 1e-40);
-
- // 1.0e-20
- let x = ExtendedFloat {
- mant: 13611294244890214400,
- exp: -130,
- };
- assert_eq!(x.into_float::<f32>(), 1e-20);
-
- // 1.0
- let x = ExtendedFloat {
- mant: 9223372036854775808,
- exp: -63,
- };
- assert_eq!(x.into_float::<f32>(), 1.0);
-
- // 1e20
- let x = ExtendedFloat {
- mant: 12500000250510966784,
- exp: 3,
- };
- assert_eq!(x.into_float::<f32>(), 1e20);
-
- // max value
- let x = ExtendedFloat {
- mant: 18446740775174668288,
- exp: 64,
- };
- assert_eq!(x.into_float::<f32>(), 3.402823e38);
-
- // almost max, high exp
- let x = ExtendedFloat {
- mant: 1048575,
- exp: 108,
- };
- assert_eq!(x.into_float::<f32>(), 3.4028204e38);
-
- // max value + 1
- let x = ExtendedFloat {
- mant: 16777216,
- exp: 104,
- };
- assert_eq!(x.into_float::<f32>(), f32::INFINITY);
-
- // max value + 1
- let x = ExtendedFloat {
- mant: 1048576,
- exp: 108,
- };
- assert_eq!(x.into_float::<f32>(), f32::INFINITY);
-
- // 1e40
- let x = ExtendedFloat {
- mant: 16940658945086007296,
- exp: 69,
- };
- assert_eq!(x.into_float::<f32>(), f32::INFINITY);
-
- // Integers.
- for int in &INTEGERS {
- let fp = ExtendedFloat { mant: *int, exp: 0 };
- assert_eq!(fp.into_float::<f32>(), *int as f32, "{:?} as f32", *int);
- }
-}
-
-#[test]
-fn to_f64_test() {
- // underflow
- let x = ExtendedFloat {
- mant: 9223372036854775808,
- exp: -1138,
- };
- assert_eq!(x.into_float::<f64>(), 0.0);
-
- // min value
- let x = ExtendedFloat {
- mant: 9223372036854775808,
- exp: -1137,
- };
- assert_eq!(x.into_float::<f64>(), 5e-324);
-
- // 1.0e-250
- let x = ExtendedFloat {
- mant: 13207363278391631872,
- exp: -894,
- };
- assert_eq!(x.into_float::<f64>(), 1e-250);
-
- // 1.0e-150
- let x = ExtendedFloat {
- mant: 15095849699286165504,
- exp: -562,
- };
- assert_eq!(x.into_float::<f64>(), 1e-150);
-
- // 1.0e-45
- let x = ExtendedFloat {
- mant: 13164036458569648128,
- exp: -213,
- };
- assert_eq!(x.into_float::<f64>(), 1e-45);
-
- // 1.0e-40
- let x = ExtendedFloat {
- mant: 10043362776618688512,
- exp: -196,
- };
- assert_eq!(x.into_float::<f64>(), 1e-40);
-
- // 1.0e-20
- let x = ExtendedFloat {
- mant: 13611294676837537792,
- exp: -130,
- };
- assert_eq!(x.into_float::<f64>(), 1e-20);
-
- // 1.0
- let x = ExtendedFloat {
- mant: 9223372036854775808,
- exp: -63,
- };
- assert_eq!(x.into_float::<f64>(), 1.0);
-
- // 1e20
- let x = ExtendedFloat {
- mant: 12500000000000000000,
- exp: 3,
- };
- assert_eq!(x.into_float::<f64>(), 1e20);
-
- // 1e40
- let x = ExtendedFloat {
- mant: 16940658945086007296,
- exp: 69,
- };
- assert_eq!(x.into_float::<f64>(), 1e40);
-
- // 1e150
- let x = ExtendedFloat {
- mant: 11270725851789228032,
- exp: 435,
- };
- assert_eq!(x.into_float::<f64>(), 1e150);
-
- // 1e250
- let x = ExtendedFloat {
- mant: 12882297539194265600,
- exp: 767,
- };
- assert_eq!(x.into_float::<f64>(), 1e250);
-
- // max value
- let x = ExtendedFloat {
- mant: 9007199254740991,
- exp: 971,
- };
- assert_eq!(x.into_float::<f64>(), 1.7976931348623157e308);
-
- // max value
- let x = ExtendedFloat {
- mant: 18446744073709549568,
- exp: 960,
- };
- assert_eq!(x.into_float::<f64>(), 1.7976931348623157e308);
-
- // overflow
- let x = ExtendedFloat {
- mant: 9007199254740992,
- exp: 971,
- };
- assert_eq!(x.into_float::<f64>(), f64::INFINITY);
-
- // overflow
- let x = ExtendedFloat {
- mant: 18446744073709549568,
- exp: 961,
- };
- assert_eq!(x.into_float::<f64>(), f64::INFINITY);
-
- // Underflow
- // Adapted from failures in strtod.
- let x = ExtendedFloat {
- exp: -1139,
- mant: 18446744073709550712,
- };
- assert_eq!(x.into_float::<f64>(), 0.0);
-
- let x = ExtendedFloat {
- exp: -1139,
- mant: 18446744073709551460,
- };
- assert_eq!(x.into_float::<f64>(), 0.0);
-
- let x = ExtendedFloat {
- exp: -1138,
- mant: 9223372036854776103,
- };
- assert_eq!(x.into_float::<f64>(), 5e-324);
-
- // Integers.
- for int in &INTEGERS {
- let fp = ExtendedFloat { mant: *int, exp: 0 };
- assert_eq!(fp.into_float::<f64>(), *int as f64, "{:?} as f64", *int);
- }
-}
-
-// OPERATIONS
-
-fn check_mul(a: ExtendedFloat, b: ExtendedFloat, c: ExtendedFloat) {
- let r = a.mul(&b);
- assert_eq!(r, c);
-}
-
-#[test]
-fn mul_test() {
- // Normalized (64-bit mantissa)
- let a = ExtendedFloat {
- mant: 13164036458569648128,
- exp: -213,
- };
- let b = ExtendedFloat {
- mant: 9223372036854775808,
- exp: -62,
- };
- let c = ExtendedFloat {
- mant: 6582018229284824064,
- exp: -211,
- };
- check_mul(a, b, c);
-
- // Check with integers
- // 64-bit mantissa
- let mut a = ExtendedFloat { mant: 10, exp: 0 };
- let mut b = ExtendedFloat { mant: 10, exp: 0 };
- a.normalize();
- b.normalize();
- assert_eq!(a.mul(&b).into_float::<f64>(), 100.0);
-
- // Check both values need high bits set.
- let a = ExtendedFloat {
- mant: 1 << 32,
- exp: -31,
- };
- let b = ExtendedFloat {
- mant: 1 << 32,
- exp: -31,
- };
- assert_eq!(a.mul(&b).into_float::<f64>(), 4.0);
-
- // Check both values need high bits set.
- let a = ExtendedFloat {
- mant: 10 << 31,
- exp: -31,
- };
- let b = ExtendedFloat {
- mant: 10 << 31,
- exp: -31,
- };
- assert_eq!(a.mul(&b).into_float::<f64>(), 100.0);
-}
-
-fn check_imul(mut a: ExtendedFloat, b: ExtendedFloat, c: ExtendedFloat) {
- a.imul(&b);
- assert_eq!(a, c);
-}
-
-#[test]
-fn imul_test() {
- // Normalized (64-bit mantissa)
- let a = ExtendedFloat {
- mant: 13164036458569648128,
- exp: -213,
- };
- let b = ExtendedFloat {
- mant: 9223372036854775808,
- exp: -62,
- };
- let c = ExtendedFloat {
- mant: 6582018229284824064,
- exp: -211,
- };
- check_imul(a, b, c);
-
- // Check with integers
- // 64-bit mantissa
- let mut a = ExtendedFloat { mant: 10, exp: 0 };
- let mut b = ExtendedFloat { mant: 10, exp: 0 };
- a.normalize();
- b.normalize();
- a.imul(&b);
- assert_eq!(a.into_float::<f64>(), 100.0);
-
- // Check both values need high bits set.
- let mut a = ExtendedFloat {
- mant: 1 << 32,
- exp: -31,
- };
- let b = ExtendedFloat {
- mant: 1 << 32,
- exp: -31,
- };
- a.imul(&b);
- assert_eq!(a.into_float::<f64>(), 4.0);
-
- // Check both values need high bits set.
- let mut a = ExtendedFloat {
- mant: 10 << 31,
- exp: -31,
- };
- let b = ExtendedFloat {
- mant: 10 << 31,
- exp: -31,
- };
- a.imul(&b);
- assert_eq!(a.into_float::<f64>(), 100.0);
-}
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