Segment violation (was Re: Why I could not cast string to int?)

[xancorreu]

I get "segment violation" error with  ./factorial 400000
How can I resolve it?

My code is:

import std.stdio, std.bigint, std.string, std.conv, std.stream;

BigInt recFactorial(int n) {
    if (n == 0)
        return BigInt(1);
    else
        return (BigInt(n) * recFactorial(n - 1));
}

void main(string[] args) {
    if (args.length != 2)
        writeln("Factorial requires a number");
    else
        try {
            writeln(recFactorial(std.conv.to!int(args[1])));
        } catch {
            writeln("Error");
        }
}



Thanks a lot,