https://github.com/onevcat/Easy-Cal-Swift

Overload +-*/ operator for Swift, make it easier to use (and not so strict)
https://github.com/onevcat/Easy-Cal-Swift

Last synced: 3 months ago
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Overload +-*/ operator for Swift, make it easier to use (and not so strict)

• Host: GitHub
• URL: https://github.com/onevcat/Easy-Cal-Swift
• Owner: onevcat
• License: mit
• Created: 2014-06-05T03:30:24.000Z (over 10 years ago)
• Default Branch: master
• Last Pushed: 2015-05-11T01:21:11.000Z (over 9 years ago)
• Last Synced: 2024-07-31T18:17:44.881Z (6 months ago)
• Language: Swift
• Homepage:
• Size: 162 KB
• Stars: 271
• Watchers: 13
• Forks: 25
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

Awesome Lists containing this project

• awesome-swift-cn - Easy-Cal-Swift - Overload +-*/ operator for Swift, make it easier to use (and not so strict). (Libs / Math)
• awesome-swift - Easy-Cal-Swift - Overload +-*/ operator for Swift, make it easier to use (and not so strict). (Extensions)

README

        
Easy-Cal-Swift

==============

### Overview

This file is an overloading of +-*/ operator for Swift, to make it easier to use (and not so strict)

It can make your life with Swift easier when doing calculation between different type. Swift has a type check and requires left operand and the right one the same type. It causes a lot of trouble that we must convert the type every time.

```

var a = 3

var b = 2.0

a + b  //Compile error

a - b  //Oops, error again

a * b  //Wtf..

a / b  //God please save me

//You have to write these instead

Double(a) + b

Double(a) - b

Double(a) * b

Double(a) / b

```

Yes, it is type safe, but it is also time wasted.

### Usage

Just put the `Easy-Cal.swift` to your project, and you can now have a traditional C-like implicit conversion between `Int`, `Float` and `Double`. So you can write as you would expect without annoying   error messages.

```

var a = 3

var b = 2.0

a + b  //5.0

a - b  //1.0

a * b  //6.0

a / b  //1.5

```

`UInt` is also implemented, but it seems there is a bug in this beta seed PlayGround, in which there is a fatal error when you assign an `UInt` value :(. Fortunately, the `UInt` works well in project.

### Risk

Yes, you lose type safe when using these operators, which is opposite to Swift design. But I find at almost all the time, you will know what you are doing with these numbers and the conversion will be just exactly what you want.