Re: C syntax errors

Frank - sorry I should have mentioned this before.

There is one book available that introduces C from an RPG perspective. "C for RPG Programmers" by Jennifer Hamilton. Originally published by Duke (i.e. Penton) - I don't know who issues it now but this will give you ISBN etc. http://www.amazon.com/C-Rpg-Programmers-Jennifer-Hamilton/dp/0962874361

It is written with the original C compiler in mind (i.e. pre-ILE) but the bulk of the information is still valid.

On 2014-01-21, at 5:17 AM, frank kolmann <[email protected]> wrote:

> Hi Jevgeni
> 
> 
> Comments inline.
> 
> Regards
> Frank Kolmann
> 
> 
>> date: Mon, 20 Jan 2014 11:50:35 +0000
>> from: Jevgeni Astanovski <[email protected]>
>> subject: Re: [C400-L] C syntax errors
> 
>> Frank,
>> I learnt programming C more than 20 years ago - and I used solely K&R book.
>> Just start from the beginning and do all exercises without exceptions
>> - this is how I did it.
>> Of course there is one little thing to mention -
>> you also occasionally need someone who is ready to act as a tutor.
> 
> Looks like the K&R book is the way to go. No one has mentioned any other.
> Have you still got your solution for exercise 5.20.
> If so can I have the code please?
> 
>> This is for 2 major issues:
>> 1. You must get familiar with the particular programming
> environment/compiler.
>> This is not covered in the Book so you will need external help.
>> 2. You will need that "someone" to prevent you from spending
>> hours on stupid problems, like, for example one { missing in the source
> example.
> 
> I am using the iSeries C compiler, so far so good.
> I dont have a tutor, so my problems are my own.
> 
> 
>> Now in general.
>> As far as I understand, there is such a thing like "C-style".
>> Some people are proud that they are writing C using "C-style".
>> This "while (ns-->0) is very C-style. Your example with double * is also
> C-style.
>> C-style assumes using lots of *, &, ->  and mixing them in all possible
>> combination making it close to impossible for anyone
>> (including yourself after a month) to understand the code.
>> But you can also write clearly understandable code - and not take
>> care of minimizing keystrokes, which indeed is a very bad practice.
> 
> I certainly intend to not use "C-style" but its a two edged sword
> what to dont use you lose.
> 
>> Another thing - there is no such thing like: you MUST write short
> functions.
>> One simple reason - it is always easier to read consecutive row of
>> source code lines than to jump  from one function to another,
>> then from there further (deeper) and again and again.
>> So my advise - write the way YOU like, the way YOU feel convenient with.
>> And luckily for us - C allows you to do it.
> 
> I know the problem of function upon function upon function etc. I
> have seen this is RPG ILE and I am wary of it.
> 
>> And one last thing - from an old-style programmer.
>> Do not start to write code before you have a more or less
>> (at least high-level) understanding of what you are writing.
> 
> I am up to Ch 5 in K&R and I think I have a good understanding so far.
>> From another old programmer I understand what you mean.
> I am learning C because I got bored.
> 
> 
>> Good luck!
> Thanks
> 
>> Jevgeni.
> -- 
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Jon Paris

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www.SystemiDeveloper.com




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