Is there a way to loop over intervals between two big int values, x and y, in Go?
for i: = x; i < y; i++ {
// do something
}
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1 Answer
Working with big numbers can be kind of clunky because you need to create a big.Int for constants. Other than that, it is a straight forward replacement of each segment of the for statement to one made to deal with big ints.
http://play.golang.org/p/pLSd8yf9Lz
package main
import (
"fmt"
"math/big"
)
var one = big.NewInt(1)
func main() {
start := big.NewInt(1)
end := big.NewInt(5)
// i must be a new int so that it does not overwrite start
for i := new(big.Int).Set(start); i.Cmp(end) < 0; i.Add(i, one) {
fmt.Println(i)
}
}
answered Apr 28, 2015 at 21:49
Stephen Weinberg
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