Re: array type conversio question

Re: array type conversio question

[Tom Moran]

>What made you think you needed to convert the literal "abc" to something else?
Is it guaranteed that "abc" is a legal interfaces.c.char_array on any
Ada 95 compiler?

Re: array type conversio question

[Anonymous]

On Fri, 03 Apr 1998 20:13:15 GMT, tmoran@bix.com (Tom Moran) wrote:

> How can I make the following into legitimate Ada 95 code?
> with interfaces.c;
> procedure test is
>   use interfaces.c;
>   type t is array(1 .. 5) of aliased char;
>   type r is record
>     title : t := t(to_c("abc") & (4 .. 5=>nul));
>     stuff : integer;
>   end record;
> begin
>   null;
> end test;
> ...

The following is legal according to GNAT 3.10p1/Win95:

with interfaces.c;
procedure test is
  type t is array(1 .. 5) of aliased interfaces.c.char;
  type r is record
    title : t := "abc" & (4 .. 5=>interfaces.c.nul);
    stuff : integer;
  end record;
begin
  null;
end test;

"Pesky use clauses," said Pooh.

Interfaces.C.Char is a character type; therefore, T is a string type;
that is, it is a one-dimensional array with components of a character
type. String literals are defined for all string types.

Eliminating the use clause eliminated potential ambiguity of "&",
allowing this to compile cleanly.

Jeff Carter  PGP:1024/440FBE21
My real e-mail address: ( carter @ innocon . com )
"English bed-wetting types."
Monty Python & the Holy Grail

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