Harbour and floats

Harbour and floats

Postby dissonantdev » Sat Jan 27, 2018 4:13 am

Hello! I'm new here so I hope you guys can lend me a hand if at all possible.

First I should disclose that I know pretty much nothing about Harbour, however I recently became interested in learning about it; so my question might already have an obvious answer!

For those of you that know, how does Harbour represent floats? Does it have any kind of limited-precision or arbitrary-precision decimal type?
I need something either like the limited precision decimal type in C# or something with arbitrary precision like Java's BigDecimal.

I personally use gmplib in C++, can that be used with Harbour?
GMP is a C library, and I think I heard in passing that Harbour can import and use C stuff; anyone that knows?

And last question! I recently found (10 minutes ago) Alexander Kresin's Harbour manual, but I thought I'd ask anyway.
Are there any other recommended resources to learn a bit more about the language?

Thank you for your time!
dissonantdev
 
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Re: Harbour and floats

Postby Rick Lipkin » Sat Jan 27, 2018 2:18 pm

Welcome to the forum .. here is the ( new ) Harbour website .. a good place to start .. documentation, downloads, reference guides and code samples .. enjoy!

Rick Lipkin

https://harbour.github.io/
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Re: Harbour and floats

Postby cnavarro » Sat Jan 27, 2018 8:40 pm

Hello
Welcome to the forum
I am sure that among all the companions we can help you in all the doubts you have
Please, read
viewtopic.php?f=3&t=19688#p103823
Cristobal Navarro
Hay dos tipos de personas: las que te hacen perder el tiempo y las que te hacen perder la noción del tiempo
El secreto de la felicidad no está en hacer lo que te gusta, sino en que te guste lo que haces
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Re: Harbour and floats

Postby Antonio Linares » Sun Jan 28, 2018 6:14 am

1)
https://groups.google.com/forum/#!searchin/harbour-devel/float%7Csort:date
https://groups.google.com/forum/#!searchin/harbour-devel/double%7Csort:date

In hbapi.h:
#define HB_IT_DOUBLE 0x00010
Code: Select all  Expand view
struct hb_struDouble
{
   double value;
   HB_USHORT length;
   HB_USHORT decimal;
};

Search for double in hbapi.h and review all related doubles functions
You may also review hbfloat.h

2) You can use any C library from Harbour:
viewtopic.php?p=63612#p63612
viewtopic.php?p=66183#p66183
viewtopic.php?p=96883#p96883
regards, saludos

Antonio Linares
www.fivetechsoft.com
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Re: Harbour and floats

Postby dissonantdev » Mon Jan 29, 2018 2:06 am

I just had enough time to check all those resources you guys linked, thank you very much!
It's exactly what I was looking for.

Thanks again for all the help!
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