strcat and spaces?

[Ben Abbott]

On Wednesday, November 26, 2008, at 09:13AM, "Søren Hauberg" <soren at hauberg.org> wrote:
>Hi All,
>  If I do the following
>
>    strcat ("hel", " ", "lo")
>
>I get the string "hello", but I would have expected "hel lo". It seems
>Matlab has the same behavior, so I guess this isn't a bug, but I find it
>weird. Can anybody explain why this behavior makes sense?
>
>Søren
>

That feature is a manifestation of how "cellstr" works. Specifically, all trailing spaces are trimmed.

octave:140> fprintf("\"%s\"\n",cellstr("  1  "){1})
"  1"

Thus,

octave:141> strcat ("hel", " ", "lo")
ans = hello
octave:142> strcat ("hel", " ", " lo")
ans = hel lo
octave:143> 

Ben