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How to check... a defined identifier string?
or number?
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hi,
"And" <49341109@ntnu.edu.tw> wrote:
> How to check... a defined identifier string?
> or number?
not sure if you're using Linux, or have access to. if so, have a look perhaps
at WFP's 'povr' branch. eg
<http://news.povray.org/60abd77d%241%40news.povray.org>.
regards, jr.
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"jr" <cre### [at] gmail com> wrote:
> hi,
>
> "And" <49341109@ntnu.edu.tw> wrote:
> > How to check... a defined identifier string?
> > or number?
>
> not sure if you're using Linux, or have access to. if so, have a look perhaps
> at WFP's 'povr' branch. eg
> <http://news.povray.org/60abd77d%241%40news.povray.org>.
>
>
> regards, jr.
No, I don't use Linux. I'm writing a macro, it input a file_name string. If
(file_name = ""), it will not output that file.
I just found a method using concat(file_name) to avoid inputting non-string
type.
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hi,
"And" <49341109@ntnu.edu.tw> wrote:
> ...
> No, I don't use Linux. I'm writing a macro, it input a file_name string. If
> (file_name = ""), it will not output that file.
> I just found a method using concat(file_name) to avoid inputting non-string
> type.
good.
caution, blatant advertising :-) :
<https://drive.google.com/file/d/10pGH0yi_-8aBTQvTwQPB4AdfRl9JsTGg/view?usp=sharing>
regards, jr.
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"jr" <cre### [at] gmailcom> wrote:
> hi,
>
> "And" <49341109@ntnu.edu.tw> wrote:
> > ...
> > No, I don't use Linux. I'm writing a macro, it input a file_name string. If
> > (file_name = ""), it will not output that file.
> > I just found a method using concat(file_name) to avoid inputting non-string
> > type.
>
> good.
>
> caution, blatant advertising :-) :
> <https://drive.google.com/file/d/10pGH0yi_-8aBTQvTwQPB4AdfRl9JsTGg/view?usp=sharing>
>
>
> regards, jr.
Thank you. In fact, I used very elementary with write/read data whether POV-Ray
or Java. First time think about what is CSV (Comma Separated Values).
Your document style looks clean.
I will read it.
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On 24/07/2023 08:21, And wrote:
>
>
> No, I don't use Linux. I'm writing a macro, it input a file_name string. If
> (file_name = ""), it will not output that file.
>
I'm not sure I understand the need, but if you want to test whether the
file name is empty, you can use the strlen() function.
#if(strlen(file_name))
// file name is defined
...
#else
// file name is empty
...
#end
--
Kurtz le pirate
Compagnie de la Banquise
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hi,
"And" <49341109@ntnu.edu.tw> wrote:
> ...
> Thank you. In fact, I used very elementary with write/read data whether POV-Ray
> or Java. First time think about what is CSV (Comma Separated Values).
yes, thinking about data from various "different angles" can be helpful.
> Your document style looks clean.
> I will read it.
thank you. (hope the code, too, will "stand up under scrutiny" ;-))
regards, jr.
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