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object function error??

 [1/3] from: raimunddold::web::de at: 23-Jun-2001 9:33


Hi, whats wrong with this?? REBOL [] book: make object! [ author: title: info: none print: func [] [ print [ author ": " title ] ] ] my-book: make book[] my-book/author: "Raimund Dold" my-book/title: "Is this an error?" my-book/print If I evaluate the lines above I get the following: ** Internal Error: Stack overflow ** Near: print [author ": " title] Whats wrong? Raimund

 [2/3] from: c:brizell:worc:ac at: 23-Jun-2001 8:46


Raimund, Try the following amended script: REBOL [] book: make object! [ author: title: info: none printit: func [] [ print [ author ": " title ] ] ] my-book: make book[] my-book/author: "Raimund Dold" my-book/title: "Is this an error?" my-book/printit The function print that you declared superceded the system definintion of the word 'print causing your 'print function to loop recursively HTH colinb

 [3/3] from: joel:neely:fedex at: 23-Jun-2001 2:16


Hi Raimund, Raimund Dold wrote:
> REBOL [] > book: make object! [
<<quoted lines omitted: 6>>
> ] > ]
...
> ** Internal Error: Stack overflow > ** Near: print [author ": " title] >
Colin's diagnosis was correct, and in general it's a good idea IMHO to avoid names already taken. For the sake of completeness, I'll mention that you *could* do this book: make oject! [ author: title: info: none print: func [] [system/words/print [ author ":" title ] ] because your redefinition of PRINT is only within the context of BOOK; it won't interfere with the use of PRINT outside that context (unless you do something else to cause *that* effect ;-) -jn- -- ------------------------------------------------------------ Programming languages: compact, powerful, simple ... Pick any two! joel'dot'neely'at'fedex'dot'com

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