Programming Challenge Numbers to Text?

[Steve]

Hey now thats an elegant solution.
I'm just surprised there isn't a library somewhere with this or
something like it.

On 5/2/06, Walter Holladay <walter at holladays.org> wrote:
> OK, how about this?
>
> #include <stdio.h>
>
> int main()
> {
>         const char*
> singles[20]={"Zero","One","Two","Three","Four","Five","Six","Seven","Eight","Nine","Ten","Eleven","Twelve","Thirteen","Fourteen","Fifteen","Sixteen","Seventeen","Eighteen","Nineteen"};
>         const char*
> tens[11]={"","Ten","Twenty","Thirty","Forty","Fifty","Sixty","Seventy","Eighty","Ninety","One
> Hundred"};
>
>         int i;
>         for (i=0; i <= 100; i++)
>         {
>                 if (i < 20)
>                 {
>                         printf("%d is %s\n",i,singles[i]);
>                 }
>                 else
>                 {
>                         printf("%d is %s %s\n",i,tens[i/10],((i%10 == 0)
> ? "" : singles[i%10]));
>                 }
>         }
> }
>
>
> Steve wrote:
> > Yeah thats nice but then you have a 100 unit array, seems to me it
> > could probably be done in less than 30 lines if I can work out how to
> > handle place value in C
> >
> > On 5/2/06, Walter Holladay <walter at holladays.org> wrote:
> >> The easiest way would be to simply create an array with all the numbers
> >> as words, and then just use the number as an index into the array.
> >> Like so:
> >>
> >> int main()
> >> {
> >>         const char*
> >> nums[10]={"Zero","One","Two","Three","Four","Five","Six","Seven","Eight","Nine"};
> >>
> >>
> >>         int i;
> >>         for (i=0; i < 10; i++)
> >>         {
> >>                 printf("%d is %s\n",i,nums[i]);
> >>         }
> >> }
> >>
> >> Cheers,
> >> Walter
> >>
> >> Steve wrote:
> >> > Hello all,
> >> > This is prolly a little offtopic, but I'm wondering if anyone can
> >> > recommend a good quick method of converting numbers to text.
> >> > For instance if I wanted to replace all instances of 100 with the
> >> > words One Hundred, is there something already written, a library
> >> > somewhere?  This seems like something that should have been tackled
> >> > ages ago and is probably a part of some entry level C++ courses, but
> >> > the only way I can think of doing it would be one helaciously long
> >> > switch statement.  Fortunately this would only need to cover the
> >> > numbers 0 to 100.
> >> > It does need to be done in C/C++ though.
> >> >
> >> > Any recommendations on a good lib for something like this, or an
> >> > example snippet that doesn't result in a 100+ line switch statement?
> >> >
> >> > Thanks in advance.
> >> > (BTW the numbers are already stored in a stringor actually a const
> >> char*)
> >> >
> >> > /*
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> >>
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> >>
> >
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