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72 lines
1.3 KiB
72 lines
1.3 KiB
5 years ago
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## trimatoi
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### Instructions
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- Write a [function](TODO-LINK) that transforms a number within a `string` in a number represented as an `int`.
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- For this exercise the handling of the signs + or - **has** to be taken into account. If one of the signs is encountered before any number it should determine the sign of the returned `int`.
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- This function will **only** have to return the `int`. In case of invalid input, the function should return `0`.
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### Expected function
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```go
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func TrimAtoi(s string) int {
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}
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```
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### Usage
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Here is a possible [program](TODO-LINK) to test your function :
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```go
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package main
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import (
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"fmt"
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piscine ".."
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)
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func main() {
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s := "12345"
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s2 := "str123ing45"
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s3 := "012 345"
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s4 := "Hello World!"
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s5 := "sd+x1fa2W3s4"
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s6 := "sd-x1fa2W3s4"
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s7 := "sdx1-fa2W3s4"
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n := piscine.TrimAtoi(s)
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n2 := piscine.TrimAtoi(s2)
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n3 := piscine.TrimAtoi(s3)
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n4 := piscine.TrimAtoi(s4)
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n5 := piscine.TrimAtoi(s5)
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n6 := piscine.TrimAtoi(s6)
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n7 := piscine.TrimAtoi(s6)
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fmt.Println(n)
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fmt.Println(n2)
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fmt.Println(n3)
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fmt.Println(n4)
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fmt.Println(n5)
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fmt.Println(n6)
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fmt.Println(n7)
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}
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```
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And its output :
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```console
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student@ubuntu:~/piscine-go/test$ go build
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student@ubuntu:~/piscine-go/test$ ./test
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12345
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12345
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12345
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0
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1234
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-1234
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1234
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student@ubuntu:~/piscine-go/test$
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```
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