cc: [EMAIL PROTECTED]
Subject: Re: [ast-users] How to determine if a type has already been defined?
--------
> How can one see the defined types? Other languages have a defined
> function which allows one to test if a symbol has been defined.
>
>
${.sh.type} expands to the list of define types.
Also ${.sh.type.name:+defined}
will output defined if the type named name is defined.
You can also use [EMAIL PROTECTED] to get the *name if the type name
is defined. If name was derived from another type, then the parent
type name followed by a . will preceded name.
For example,
typeset -P Pt2d_t=(
float x=1 y=2
)
typeset -P Pt3d_t=(
Pt2d_t _
z=3
)
The [EMAIL PROTECTED] will give Pt2d_t.Pt3d_t
David Korn
[EMAIL PROTECTED]
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