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determining size of pointed to array
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>you can do also
You say "also", but that's identical to the solution I mentioned.
You say "also", but that's identical to the solution I mentioned.
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Originally Posted by Aia 
lolguy> you can do also
Did you read post number two before?
Did you notice that the thread is marked as solved? Which unless you are sure something has been overlooked, you should learn to leave alone.
however, I don't agree with your second point...
I see no problem with contributing something to a solved thread, especially if there's more than one way to do it. If the OP doesn't need any other way to do it, that's fine, alternative answers can be a benefit to other readers of a thread. I often click on solved links to read about a problem and its solutions to learn something about it--and it makes it all the more beneficial if there are lots of different fixes to it. I don't stop reading after the first acceptable answer, so why stop posting solutions after the first?
Last edited by winrawr; May 17th, 2009 at 3:56 am.
I wake up! And my mind's out, never again will I sell out. Converting vegetarians.
Into the midnight giving it to you, I don't know it just feels right.
This is the time of the revolution, Cooking the next step.
Converting vegetarians, minding the gap since 1996
Into the midnight giving it to you, I don't know it just feels right.
This is the time of the revolution, Cooking the next step.
Converting vegetarians, minding the gap since 1996
I agree to winrawr at post # 12:
But, if
this "iterating" posts have really been normed as discouraged
(I know it's in the rules), so be it. I would rather keep quiet in
order to help people in need rather than to be kicked out and
could not help other people anymore...
I'm sorry for this pathetic post,
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I see no problem with contributing something to a solved thread, especially if there's more than one way to do it. If the OP doesn't need any other way to do it, that's fine, alternative answers can be a benefit to other readers of a thread. I often click on solved links to read about a problem and its solutions to learn something about it--and it makes it all the more beneficial if there are lots of different fixes to it. I don't stop reading after the first acceptable answer, so why stop posting solutions after the first?
this "iterating" posts have really been normed as discouraged
(I know it's in the rules), so be it. I would rather keep quiet in
order to help people in need rather than to be kicked out and
could not help other people anymore...
I'm sorry for this pathetic post,
winrawr> I see no problem with contributing something to a solved thread,[...]
"contributing something" is the key that you are overlooking concerning my comment.
"contributing something" is the key that you are overlooking concerning my comment.
"If it moves, tax it. If it keeps moving, regulate it, and if it stops moving, subsidize it" - Ronald Reagan
Ok, let's just calm down...We are not here to argue...
We are here, as a member, to help those who have
problems...
We are here, as a member, to help those who have
problems...
neigyl_noval> Ok, let's just calm down...We are not here to argue...
"If it moves, tax it. If it keeps moving, regulate it, and if it stops moving, subsidize it" - Ronald Reagan
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Join Date: Feb 2008
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Originally Posted by neigyl_noval
We are not here to argue...
We are here, as a member, to help those who have
problems...
i'm here for the smackdown.
>i'm here for the smackdown.
If you come for the smackdown, don't be surprised when you get smacked.
If you come for the smackdown, don't be surprised when you get smacked.
New members chased away this month: 4
Back to the topic. I have another solution.
The capacity of the array must be known to the function. If the capacity is not hardcoded or saved in a global variable, you need to pass it to the function. Narue proposed to pass it in a second parameter.
Another solution is to make a bundle of the array and its capacity. A cheap, dirty trick is misusing the first array element for it. For strings, the first byte is the string length (lengths from 0 to 255 are possible), for integer array, the first integer is the array length, etc. For non-char or non-integer array, a cast would be neccessary. But this is very dirty and dangerous. Pascal-type strings do this implicitly, which is fine because Pascal hides this trick.
A third solution is to create a struct both of capacity and an array of length 1 (or 0 with gcc).
Allocate dynamically with
This works, because C does not check the array bounds. When we say
The capacity of the array must be known to the function. If the capacity is not hardcoded or saved in a global variable, you need to pass it to the function. Narue proposed to pass it in a second parameter.
Another solution is to make a bundle of the array and its capacity. A cheap, dirty trick is misusing the first array element for it. For strings, the first byte is the string length (lengths from 0 to 255 are possible), for integer array, the first integer is the array length, etc. For non-char or non-integer array, a cast would be neccessary. But this is very dirty and dangerous. Pascal-type strings do this implicitly, which is fine because Pascal hides this trick.
A third solution is to create a struct both of capacity and an array of length 1 (or 0 with gcc).
C Syntax (Toggle Plain Text)
Allocate dynamically with
malloc(sizeof(struct example) + (len - 1) * sizeof(char)) (not tested). Drop -1 if using string[0].This works, because C does not check the array bounds. When we say
string[2] , the C compiler won't report errors, and because we allocated memory for it, it will work.  |
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