Why I could not cast string to int?

[bearophile]

Alex Rønne Petersen Wrote:

> On 02-02-2012 17:26, xancorreu wrote:
> > Why cast(int) does not work and I have to call another function?
> >
> > Thanks,
> >
> > Al 02/02/12 17:24, En/na Adam D. Ruppe ha escrit:
> >> On Thursday, 2 February 2012 at 16:21:39 UTC, xancorreu wrote:
> >>> $ ./factorial 222
> >>> Factorial requires a number
> >>
> >> args[0] is the name of your program.
> >> (The first thing you typed on the command
> >> line.)
> >>
> >> Use args[1] to get that number.
> >>
> >>> parse() where is the doc?
> >>
> >> http://www.d-programming-language.org/phobos/std_conv.html#parse
> >>
> >>
> >> to!int(args[1]) is probably what you want here though.
> >
> 
> Because D is a strongly typed language. Casting a string to an int 
> doesn't make sense from a type system perspective.
> 
> --
> - Alex