Re: How to assign STRINGs?

[cis.ohio-state.edu!pacific.mps.ohio-state.edu!math.ohio-state.edu!howland]

In article <CCDLMo.A8D@cs.uiuc.edu> rowe@cs.uiuc.edu (Kenneth E. Rowe) writes:

>   matwood%peruvian.cs.utah.edu@cs.utah.edu (Mark Atwood) writes:
>   >
>   >  function GET_PARM return STRING;
>   >  -- from the vendor supplied DOS package
>   >
>   >  with TEXT_IO;
>   >  procedure ECHO is
>   >    subtype STR is STRING(1 .. 255);
>   >    CMDLINE : STR;
>   >  begin
>   >    CMDLINE := DOS.GET_PARMS;   -- get a CONTRAINT_ERROR here
>   >    TEXT_IO.PUT_LINE (CMDLINE);
>   >  end ECHO;
>   >
>   >
>
>   have you tried
>       CMDLINE (1..255) := Dos.Get_Parms;  
>   ???

If you haven't tried it yet, don't bother.  Given the declaration of
CMDLINE, the following two statements are equivalent:

    CMDLINE := DOS.GET_PARMS;
    CMDLINE (1..255) := DOS.GET_PARMS;

so if one fails on a CONSTRAINT_ERROR, the other will fail also.
Other postings have already suggested alternatives that will work.

                                -- Adam