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6 years ago
## basicatoi
6 years ago
### Instructions
- Write a function that simulates the behaviour of the atoi function in Go. Atoi transforms a number defined as a `string` in a number defined as an `int`.
- Atoi returns `0` if the `string` is not considered as a valid number. For this exercise **only valid** `string` chains will be tested. They will only contain one or several digits as characters.
- For this exercise the handling of the signs `+` or `-` does not have to be taken into account.
- This function will **only** have to return the `int`. For this exercise the `error` return of atoi is not required.
6 years ago
### Expected function
```go
func BasicAtoi(s string) int {
}
```
6 years ago
### Usage
Here is a possible program to test your function :
```go
package main
import (
"fmt"
piscine ".."
)
func main() {
s := "12345"
s2 := "0000000012345"
s3 := "000000"
n := piscine.BasicAtoi(s)
n2 := piscine.BasicAtoi(s2)
n3 := piscine.BasicAtoi(s3)
fmt.Println(n)
fmt.Println(n2)
fmt.Println(n3)
}
```
And its output :
```console
student@ubuntu:~/[[ROOT]]/test$ go build
student@ubuntu:~/[[ROOT]]/test$ ./test
12345
12345
0
student@ubuntu:~/[[ROOT]]/test$
```