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Re: [Chicken-users] handling the undefined value
From: |
Felix |
Subject: |
Re: [Chicken-users] handling the undefined value |
Date: |
Wed, 24 Nov 2010 18:53:26 +0100 (CET) |
From: Jörg "F. Wittenberger" <address@hidden>
Subject: Re: [Chicken-users] handling the undefined value
Date: Mon, 22 Nov 2010 15:08:46 +0100
> Have a compiler switch (since it may break some code), which changes the
> code to return zero values instead of the distinguished undefined value.
I don't think this is a great idea: this will change the
semantics of code using call-with-values, will be less efficient,
and may throw errors in some cases - R5RS (in contrast to CL and
R6RS) does not automatically adjust the number of result values
to the number of values expected by the location where the
result(s) is/are used.
cheers,
felix
- Re: [Chicken-users] handling the undefined value, (continued)
- Re: [Chicken-users] handling the undefined value, Felix, 2010/11/17
- Re: [Chicken-users] handling the undefined value, F. Wittenberger, 2010/11/18
- Re: [Chicken-users] handling the undefined value, Felix, 2010/11/19
- Re: [Chicken-users] handling the undefined value, F. Wittenberger, 2010/11/19
- Re: [Chicken-users] handling the undefined value, Felix, 2010/11/20
- [Chicken-users] NE [[not exactly]]: handling the undefined value, F. Wittenberger, 2010/11/21
- [Chicken-users] Re: NE [[not exactly]]: handling the undefined value, Felix, 2010/11/22
- Re: [Chicken-users] handling the undefined value, F. Wittenberger, 2010/11/22
- Re: [Chicken-users] handling the undefined value,
Felix <=
- Re: [Chicken-users] handling the undefined value, John Cowan, 2010/11/24
- Re: [Chicken-users] handling the undefined value, F. Wittenberger, 2010/11/25
- Re: [Chicken-users] handling the undefined value, Felix, 2010/11/25
- Re: [Chicken-users] handling the undefined value, F. Wittenberger, 2010/11/25
- Re: [Chicken-users] handling the undefined value, Felix, 2010/11/26
- Re: [Chicken-users] handling the undefined value, F. Wittenberger, 2010/11/26
- Re: [Chicken-users] handling the undefined value, Felix, 2010/11/27
- Re: [Chicken-users] handling the undefined value, F. Wittenberger, 2010/11/29