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Numeric in/equality and comparisons across numeric types (#473)
* Numeric in/equality runtime changes to support comparisons of numbers across types * Fix for nan check
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,95 @@ | ||
| // Copyright 2021 Google LLC | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
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| package types | ||
|
|
||
| import ( | ||
| "math" | ||
| ) | ||
|
|
||
| func compareDoubleInt(d Double, i Int) Int { | ||
| if d < math.MinInt64 { | ||
| return IntNegOne | ||
| } | ||
| if d > math.MaxInt64 { | ||
| return IntOne | ||
| } | ||
| return compareDouble(d, Double(i)) | ||
| } | ||
|
|
||
| func compareIntDouble(i Int, d Double) Int { | ||
| return -compareDoubleInt(d, i) | ||
| } | ||
|
|
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| func compareDoubleUint(d Double, u Uint) Int { | ||
| if d < 0 { | ||
| return IntNegOne | ||
| } | ||
| if d > math.MaxUint64 { | ||
| return IntOne | ||
| } | ||
| return compareDouble(d, Double(u)) | ||
| } | ||
|
|
||
| func compareUintDouble(u Uint, d Double) Int { | ||
| return -compareDoubleUint(d, u) | ||
| } | ||
|
|
||
| func compareIntUint(i Int, u Uint) Int { | ||
| if i < 0 || u > math.MaxInt64 { | ||
| return IntNegOne | ||
| } | ||
| cmp := i - Int(u) | ||
| if cmp < 0 { | ||
| return IntNegOne | ||
| } | ||
| if cmp > 0 { | ||
| return IntOne | ||
| } | ||
| return IntZero | ||
| } | ||
|
|
||
| func compareUintInt(u Uint, i Int) Int { | ||
| return -compareIntUint(i, u) | ||
| } | ||
|
|
||
| func compareDouble(a, b Double) Int { | ||
| if a < b { | ||
| return IntNegOne | ||
| } | ||
| if a > b { | ||
| return IntOne | ||
| } | ||
| return IntZero | ||
| } | ||
|
|
||
| func compareInt(a, b Int) Int { | ||
| if a < b { | ||
| return IntNegOne | ||
| } | ||
| if a > b { | ||
| return IntOne | ||
| } | ||
| return IntZero | ||
| } | ||
|
|
||
| func compareUint(a, b Uint) Int { | ||
| if a < b { | ||
| return IntNegOne | ||
| } | ||
| if a > b { | ||
| return IntOne | ||
| } | ||
| return IntZero | ||
| } |
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