franklin@uvicctr.UVic.CA.UUCP (Katherine Franklin) (03/14/90)
I'm just beginning to program on the Mac with MPW Pascal. I have the MPW manuals and the Pascal Manual. Why does it feel like there is something missing ? How do I find out what is in the libraries and how they work ? I've looked at the interface files, but they are confusing and there are so many of them !! I haven't a clue where to begin looking for what !! Example: I need to convert an integer to a string. It seems like a simple and common task that I would expect to either be a standard routine or in the libraries somewhere. Looking for every reference to strings in the the Pascal manual yields nothing. Is it in the libraries ? I have no idea. Nor do I know how to begin looking for the info. Am I missing something ? Katherine ------ Katherine Franklin franklin@uvicctr.uvic.ca University of Victoria franklin@uvunix.bitnet Victoria, BC, Canada
chewy@apple.com (Paul Snively) (03/15/90)
In article <958@uvicctr.UVic.CA.UUCP> franklin@uvicctr.UVic.CA.UUCP (Katherine Franklin) writes: > I'm just beginning to program on the Mac with MPW Pascal. I have the > MPW manuals and the Pascal Manual. Why does it feel like there is > something missing ? How do I find out what is in the libraries and > how they work ? I've looked at the interface files, but they are > confusing and there are so many of them !! I haven't a clue where to begin > looking for what !! > > Example: I need to convert an integer to a string. It seems like a simple > and common task that I would expect to either be a standard routine or in > the libraries somewhere. Looking for every reference to strings in the the > Pascal manual yields nothing. Is it in the libraries ? I have no idea. Nor > do I know how to begin looking for the info. > > Am I missing something ? > > Katherine You certainly are, if the documents that you named are the only ones that you have on the subject. You'll need at least Inside Macintosh Volumes I-IV, and volume V if you intend to support Macintosh SE- or II-class machines. Also, you'll need the Macintosh Technical Notes, which are available via anonymous FTP to apple.com, in pub/dts/mac/tn, I believe. Among other things, Inside Macintosh documents NumToString, which takes an INTEGER and a VAR STR255, e.g.: VAR theErr: INTEGER; tempString: STR255; ... NumToString(theErr, tempString); ... This will convert theErr to a string, which you can then do whatever you wish with. Hope this helps! __________________________________________________________________________ Paul Snively Macintosh Developer Technical Support Apple Computer, Inc. 1st Choice: Paul_Snively.DTS@qm.gateway.apple.com 2nd Choice: CHEWBACCA@applelink.apple.com Last Choice: chewy@apple.com Just because I work for Apple Computer, Inc. doesn't mean that I believe what they believe, or vice-versa. __________________________________________________________________________
drc@claris.com (Dennis Cohen) (03/15/90)
chewy@apple.com (Paul Snively) writes: >You certainly are, if the documents that you named are the only ones that >you have on the subject. >You'll need at least Inside Macintosh Volumes I-IV, and volume V if you >intend to support Macintosh SE- or II-class machines. Also, you'll need >the Macintosh Technical Notes, which are available via anonymous FTP to >apple.com, in pub/dts/mac/tn, I believe. >Among other things, Inside Macintosh documents NumToString, which takes an >INTEGER and a VAR STR255, e.g.: Not wanting to contradict you, Paul, but NumToString takes a LongInt, not an Integer. (PACK 7) >VAR > theErr: INTEGER; > tempString: STR255; >... >NumToString(theErr, tempString); >... >This will convert theErr to a string, which you can then do whatever you >wish with. Obviously, what Paul recommends will work because the Pascal compiler will extend theErr to a LongInt when it passes it to the Toolbox. Dennis Cohen Claris Corp. **************************************************** Disclaimer: Any opinions expressed above are _MINE_! ****************************************************
chewy@apple.com (Paul Snively) (03/15/90)
In article <10938@claris.com> drc@claris.com (Dennis Cohen) writes: > >Among other things, Inside Macintosh documents NumToString, which takes an > >INTEGER and a VAR STR255, e.g.: > > Not wanting to contradict you, Paul, but NumToString takes a LongInt, not an > Integer. (PACK 7) > > >VAR > > theErr: INTEGER; > > tempString: STR255; > >... > >NumToString(theErr, tempString); > >... > > >This will convert theErr to a string, which you can then do whatever you > >wish with. > > Obviously, what Paul recommends will work because the Pascal compiler will > extend theErr to a LongInt when it passes it to the Toolbox. > > Dennis Cohen > Claris Corp. Thanks to Pete Gontier and Dennis Cohen for cleaning up after me; NumToString does indeed take a LONGINT and still works with my example (which I stole right out of some of my own code) for precisely the reason that Dennis says; Pascal sign-extends integers for you if you pass them where you should be passing a LONGINT. __________________________________________________________________________ Paul Snively Macintosh Developer Technical Support Apple Computer, Inc. 1st Choice: Paul_Snively.DTS@qm.gateway.apple.com 2nd Choice: CHEWBACCA@applelink.apple.com Last Choice: chewy@apple.com Just because I work for Apple Computer, Inc. doesn't mean that I believe what they believe, or vice-versa. __________________________________________________________________________
franklin@uvicctr.UVic.CA.UUCP (Katherine Franklin) (03/16/90)
Thanks for all the great answers. I had heard of Inside Mac but I didn't really think it applied to me because I was only building MPW tools. I figured the manual for the compiler would cover that sort of stuff. Ooops ! Learn something new ! Katherine