Search found 240 matches
- Sat Apr 22, 2017 3:41 pm
- Forum: Software & Programming
- Topic: (Nearly) solved: FuNction which tests if a variable is set
- Replies: 23
- Views: 10880
Re: (Nearly) solved: FuNction which tests if a variable is set
Have you thought out how this could be done? I was only considering just scanning SuperBASIC name table and list out names of unset variables. Easily done, soon... I agree, this would be the easiest solution. I've written a rough version. It scans through the name table looking for simple float or ...
- Fri Apr 21, 2017 1:20 pm
- Forum: Software & Programming
- Topic: (Nearly) solved: FuNction which tests if a variable is set
- Replies: 23
- Views: 10880
Re: (Nearly) solved: FuNction which tests if a variable is set
Re SMSQ/E BASIC unset variables: As much as I love SMSQ/E Basic, I dislike the way unset variables default to zero. I have almost teared my hair out trying to find a bug in a large listing, only to eventually find it was a simple typo in a long variable name. Tempted to write procedure to list unse...
- Fri Apr 21, 2017 12:09 pm
- Forum: Software & Programming
- Topic: (Nearly) solved: FuNction which tests if a variable is set
- Replies: 23
- Views: 10880
Re: (Nearly) solved: FuNction which tests if a variable is set
If it has a value, it's name type (first byte of NT entry) will be 2, else 0. Yes, I have tested it. PARUSE is also working outside functions. Unfortunately it has a bug (on Minerva and SMSQ/E): Because of the bug in PARUSE, we could instead use Jan's earlier formula, and have code such as ... IF B...
- Thu Apr 20, 2017 12:00 am
- Forum: Software & Programming
- Topic: (Nearly) solved: FuNction which tests if a variable is set
- Replies: 23
- Views: 10880
Re: (Nearly) solved: FuNction which tests if a variable is set
Is there a S(uper)BASIC-function which tests if a variable is set? e.g.: REMark Turbo Toolkit required for END_CMD IF NOT variableSet(a_%):END_CMD REMark Alternative: IF NOT variableSet("a_%"):END_CMD REMark Continue with command file only if a_% is set REMark ... (your commands) END_CMD ...
- Wed Apr 19, 2017 4:42 pm
- Forum: Software & Programming
- Topic: (Nearly) solved: FuNction which tests if a variable is set
- Replies: 23
- Views: 10880
Re: (Nearly) solved: FuNction which tests if a variable is set
Is there a S(uper)BASIC-function which tests if a variable is set? The DIY toolkit volume "P" has a function called "UNSET". See: http://www.dilwyn.me.uk/tk/index.html This returns 1 if no value has been set, otherwise 0. E.g. okay = NOT UNSET(var%) If there are commands (I don'...
- Tue Mar 21, 2017 1:35 pm
- Forum: Software & Programming
- Topic: VAL function in SuperBasic
- Replies: 14
- Views: 6844
Re: VAL function in SuperBasic
Perhaps experimenting with the keyboard settings on QPC2's front panel could make a difference to the keyboard queue handling. Taking Steve's idea a bit further, we can implement a more robust version of VAL by using S*BASIC's coercion ability, to return any data type, coerced into a string. If our ...
- Sun Mar 19, 2017 11:55 pm
- Forum: Software & Programming
- Topic: VAL function in SuperBasic
- Replies: 14
- Views: 6844
Re: VAL function in SuperBasic
Hi all, I can recommend this attempt at an expression evaluator ... DEFine FuNction VAL(x$) LOCal result result = 0 IF x$ <> FILL$(" ",LEN(x$)) COMMAND_LINE TYPE_IN "result = " & x$ & CHR$(10) TYPE_IN "CONTINUE" & CHR$(10) STOP END IF RETurn result END DEFin...
- Sat Mar 18, 2017 10:56 pm
- Forum: Software & Programming
- Topic: VAL function in SuperBasic
- Replies: 14
- Views: 6844
Re: VAL function in SuperBasic
Hi tofro,tofro wrote:
in case you have Minerva or SMSQ/E, you can pipe the VAL "evaluation line" as a program line to an S*Basic child job and have the result piped back from there.
Can you give an example of how this can be done in QPC2, please.
EmmBee
- Tue Mar 14, 2017 7:27 pm
- Forum: Software & Programming
- Topic: QTImage 1.0
- Replies: 7
- Views: 3848
Re: QTImage 1.0
Hi,
Yes, I've tried to load a _pic file, but get the error message of "Picture mode not supported".
Michael
Yes, I've tried to load a _pic file, but get the error message of "Picture mode not supported".
Michael
- Tue Mar 14, 2017 4:26 pm
- Forum: Software & Programming
- Topic: QTImage 1.0
- Replies: 7
- Views: 3848
Re: QTImage 1.0
Hi Giorgio,
I have installed the DBAS extension, and can now display QTImage's front panel.
Next, how can I display your wonderful pictures, please?
Michael
I have installed the DBAS extension, and can now display QTImage's front panel.
Next, how can I display your wonderful pictures, please?
Michael