[Techtalk] C Programming Question

[Sujita Purushothaman]

This works beautifully, thanks!
Malcolm Tredinnick wrote:

> On Wed, May 29, 2002 at 02:32:10PM +1000, Malcolm Tredinnick wrote:
> > On Wed, May 29, 2002 at 12:18:25PM +0800, Sujita Purushothaman wrote:
> > > Hi,
> > >     I'm having a problem with pointer-to-array in C.
> > > I have to use the structure char  *somename[ ] . I also
> > > need to store/assign data to the strings halfway thro the
> > > program. ( I know I can initialise it as :
> > > char  *somename[ ] = {"data1","data2"}; etc.
> > > At some point in the program I need to change "data1"
> > > to "somethingelse1" . How do I do that?
> >
> > This does what you want:
> >
> >       /* Reserve the space */
> >       int length = strlen("somethingselse1");
>
> Whoops! Off-by-one error. :-(
>
> This should be strlen("somethingelse1") + 1, since strlen doesn't count the
> trailing '\0' of the string and you need to copy that as well.
>
> >       somename[0] = (char *) malloc(length);
> >       strncpy(somename[0], "somethingelse1", length);
>
> Malcolm
>
> --
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