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| From | Ben Bacarisse <ben.usenet@bsb.me.uk> |
|---|---|
| Newsgroups | comp.lang.c |
| Subject | Re: Understanding the program that has pointers to two_dimensional arrays |
| Date | 2016-12-05 19:11 +0000 |
| Organization | A noiseless patient Spider |
| Message-ID | <87zikagpiw.fsf@bsb.me.uk> (permalink) |
| References | <481da833-61f6-4f1c-973b-1b129118c682@googlegroups.com> <lnvauy478f.fsf@kst-u.example.com> |
Keith Thompson <kst-u@mib.org> writes:
> Alla _ <modelling.data@gmail.com> writes:
<snip>
>> // Print the title
>> printf("\n\n\nIndex Pointer(hex) Pointer(dec) Diff.(dec)");
>
> The author of this program certainly likes newlines, but omits them at
> the ends of lines. I see this kind of thing in program written for
> Windows. Perhaps there's some reason to print three blank lines before
> the title. Normally every line of output should end in a newline.
I've noticed the same thing in a lot of C tutorials, though I've never
made any connection with Windows (I wasn't paying attention to the OS).
I think it may simply derive from the name of the character: "newline".
It sounds like it starts a new line rather then ending an existing one.
<snip>
>> for (row = 0; row < nrows; row++)
>> {
>> rowptr[row] = malloc(ncols * sizeof(int));
<snip>
>> printf(" %d",(int)(rowptr[row] - rowptr[row-1]));
<snip>
> On my system, the pointers differ by 48 bytes, which is probably
> an indication of how much overhead when malloc allocates 8 bytes
> (sizeof (int*)).
The allocations are for 10 ints and so are very likely to be 40 bytes.
<snip>
--
Ben.
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Understanding the program that has pointers to two_dimensional arrays Alla _ <modelling.data@gmail.com> - 2016-12-05 07:45 -0800
Re: Understanding the program that has pointers to two_dimensional arrays Richard Heathfield <rjh@cpax.org.uk> - 2016-12-05 17:03 +0000
Re: Understanding the program that has pointers to two_dimensional arrays Alla _ <modelling.data@gmail.com> - 2016-12-05 09:43 -0800
Re: Understanding the program that has pointers to two_dimensional arrays Richard Heathfield <rjh@cpax.org.uk> - 2016-12-05 18:16 +0000
Re: Understanding the program that has pointers to two_dimensional arrays Alla _ <modelling.data@gmail.com> - 2016-12-05 22:46 -0800
Re: Understanding the program that has pointers to two_dimensional arrays Richard Heathfield <rjh@cpax.org.uk> - 2016-12-06 10:23 +0000
Re: Understanding the program that has pointers to two_dimensional arrays Alla _ <modelling.data@gmail.com> - 2016-12-06 02:53 -0800
Re: Understanding the program that has pointers to two_dimensional arrays Richard Heathfield <rjh@cpax.org.uk> - 2016-12-06 10:58 +0000
Re: Understanding the program that has pointers to two_dimensional arrays Alla _ <modelling.data@gmail.com> - 2016-12-06 03:42 -0800
Re: Understanding the program that has pointers to two_dimensional arrays Alla _ <modelling.data@gmail.com> - 2016-12-06 06:31 -0800
Re: Understanding the program that has pointers to two_dimensional arrays Richard Heathfield <rjh@cpax.org.uk> - 2016-12-06 14:49 +0000
Re: Understanding the program that has pointers to two_dimensional arrays Alla _ <modelling.data@gmail.com> - 2016-12-06 08:22 -0800
Re: Understanding the program that has pointers to two_dimensional arrays Richard Heathfield <rjh@cpax.org.uk> - 2016-12-06 16:48 +0000
Re: Understanding the program that has pointers to two_dimensional arrays Alla _ <modelling.data@gmail.com> - 2016-12-06 09:15 -0800
Re: Understanding the program that has pointers to two_dimensional arrays Keith Thompson <kst-u@mib.org> - 2016-12-06 08:20 -0800
Re: Understanding the program that has pointers to two_dimensional arrays Alla _ <modelling.data@gmail.com> - 2016-12-05 22:53 -0800
Re: Understanding the program that has pointers to two_dimensional arrays Keith Thompson <kst-u@mib.org> - 2016-12-05 09:26 -0800
Re: Understanding the program that has pointers to two_dimensional arrays Alla _ <modelling.data@gmail.com> - 2016-12-05 09:47 -0800
Re: Understanding the program that has pointers to two_dimensional arrays Keith Thompson <kst-u@mib.org> - 2016-12-05 12:10 -0800
Re: Understanding the program that has pointers to two_dimensional arrays Alla _ <modelling.data@gmail.com> - 2016-12-05 10:00 -0800
Re: Understanding the program that has pointers to two_dimensional arrays Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-12-05 19:11 +0000
Re: Understanding the program that has pointers to two_dimensional arrays Keith Thompson <kst-u@mib.org> - 2016-12-05 12:21 -0800
Re: Understanding the program that has pointers to two_dimensional arrays "James R. Kuyper" <jameskuyper@verizon.net> - 2016-12-05 12:50 -0500
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