| From: | Andrew Dunstan <andrew(at)dunslane(dot)net> |
|---|---|
| To: | Hannu Krosing <hannu(at)skype(dot)net> |
| Cc: | "Jonah H(dot) Harris" <jonah(dot)harris(at)gmail(dot)com>, josh(at)agliodbs(dot)com, pgsql-hackers(at)postgresql(dot)org, tgl(at)sss(dot)pgh(dot)pa(dot)us, all(at)adv(dot)magwien(dot)gv(dot)at |
| Subject: | Re: PL/pgSQL 'i = i + 1' Syntax |
| Date: | 2006-05-18 14:26:46 |
| Message-ID: | 446C8426.1080809@dunslane.net |
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| Lists: | pgsql-hackers |
Hannu Krosing wrote:
>
> Can you do something like "A > (B := C)" or "IF (A:=B) THEN ..." in
> ADA ?
>
>
Er, that's "Ada"; "ADA" is the American Dental Association among other
things.
And no you certainly can't do it. Assignment is a statement, not an
expression, and this family of languages distinguishes between the two
quite sharply. This is quite different from, say, C, where an assignment
statement is simply an expression whose evaluation has a side effect and
whose value is thrown away.
Anyway, this discussion seems to going nowhere much.
cheers
andrew
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