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Use sensible maths for from_rational (#13660)

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* Use sensible maths for from_rational

* Fixes

* Fixes

* More fixes

* Remove debugging

* Add fuzzer tests

Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>

* Prevent panics

Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>

* docs

Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>

* Clean up old code

Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>

* Test all rounding modes of from_rational

Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>

* Clean up code

Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>

* Revert "Prevent panics"

This reverts commit 7e88ac76138a1b590e68b68318505b69efe1e1f6.

* fix imports

Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>

* cleanup

Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>

* Fuzz test multiply_rational

Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>

* Fix import

Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>

* fmt

Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>

* Return None in multiply_rational on zero div

Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>

---------

Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
Co-authored-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
This commit is contained in:
Gavin Wood
2023-03-24 14:48:37 +00:00
committed by GitHub
parent 40e1704e1c
commit 2c77f8f4ca
12 changed files with 372 additions and 227 deletions
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substrate/Cargo.lock
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@@ -220,9 +220,9 @@ dependencies = [
[[package]]
name = "arbitrary"
version = "1.2.3"
version = "1.3.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "3e90af4de65aa7b293ef2d09daff88501eb254f58edde2e1ac02c82d873eadad"
checksum = "e2d098ff73c1ca148721f37baad5ea6a465a13f9573aba8641fbbbae8164a54e"
[[package]]
name = "arc-swap"
@@ -2224,6 +2224,16 @@ dependencies = [
"percent-encoding",
]
[[package]]
name = "fraction"
version = "0.13.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "3027ae1df8d41b4bed2241c8fdad4acc1e7af60c8e17743534b545e77182d678"
dependencies = [
"lazy_static",
"num",
]
[[package]]
name = "fragile"
version = "2.0.0"
@@ -5286,6 +5296,20 @@ dependencies = [
"winapi",
]
[[package]]
name = "num"
version = "0.4.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "43db66d1170d347f9a065114077f7dccb00c1b9478c89384490a3425279a4606"
dependencies = [
"num-bigint",
"num-complex",
"num-integer",
"num-iter",
"num-rational",
"num-traits",
]
[[package]]
name = "num-bigint"
version = "0.4.3"
@@ -5326,6 +5350,17 @@ dependencies = [
"num-traits",
]
[[package]]
name = "num-iter"
version = "0.1.43"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "7d03e6c028c5dc5cac6e2dec0efda81fc887605bb3d884578bb6d6bf7514e252"
dependencies = [
"autocfg",
"num-integer",
"num-traits",
]
[[package]]
name = "num-rational"
version = "0.4.1"
@@ -10143,8 +10178,11 @@ dependencies = [
name = "sp-arithmetic-fuzzer"
version = "2.0.0"
dependencies = [
"arbitrary",
"fraction",
"honggfuzz",
"num-bigint",
"num-traits",
"primitive-types",
"sp-arithmetic",
]