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From: "amado.alves" <amado.alves@netcabo.pt>
Newsgroups: comp.lang.ada
Subject: RE: U : Unbounded_String := "bla bla bla"; (was: Is the Writing...)
Date: Fri, 3 Oct 2003 13:00:42 +0100
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Date: 2003-10-03T13:00:42+01:00

"...we already have implicit conversion in Ada for numeric literals." =
(Jeff)

I know, and that was the 'precedent' for my proposal. And I'm familiar =
with the 'nightmare' of generalised implicit conversion (in C). But this =
could be tamed in Ada by defining the effect scope of pragma =
Implicit_Conversion to be the immediately enclosing block.

Or a family of such pragmas for fine control of the effect:

  Implicit_Conversion_Down_From_Here
  Implicit_Conversion_Up_To_The_Next_Enclosing_Block
  Implicit_Conversion_All_Over

However I am not totally confortable with *pragmas* for this class of =
effect. Is their precedence?