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Views: 48171 | Replies: 54
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Join Date: Oct 2004
Location: Mojave Desert
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Re: C and C++ Timesaving Tips Put a newline at the end of the file ...
Didn't give me the extra 10.
Why should a newline give an extra 10?
Didn't give me the extra 10.
Why should a newline give an extra 10?
May 'the Google' be with you!
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Join Date: Sep 2005
Location: ga
Posts: 39
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Light Poster
Something is not right.
When I use:
<< moderator edit: added [code][/code] tags and indenting >>
I have several errors. This is the exact replica of one of the posts above.
I don't understand where is the mistake as all looks ok.
Thanks,
Steven Dale
When I use:
void fum(int *array, size_t size)
{
size_t i;
/* Initialize array. */
for ( i = 0; i < size; ++i )
{
array[i] = i;
}
/* Perform calculations. */
for ( i = 0; i < size; ++i )
{
array[i] *= 2;
}
/* Print array. */
for ( i = 0; i < size; ++i )
{
printf("%d,", array[i]);
}
putchar('\n');
}
int main(void)
{
int myarray[25];
foo();
bar();
baz();
qux();
fum(myarray, ARRAYSIZE(myarray));
return 0;
}I have several errors. This is the exact replica of one of the posts above.
I don't understand where is the mistake as all looks ok.
Thanks,
Steven Dale
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Join Date: Apr 2004
Posts: 3,418
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That is a snippet. Did you copy and paste all of those parts together and #include <stdio.h>?
[edit]Or pick just the necessary parts for one of them?
[edit]Or pick just the necessary parts for one of them?
#include <stdio.h>
#define ARRAYSIZE(x) (sizeof(x)/sizeof(*(x)))
void fum(int *array, size_t size)
{
size_t i;
/* Initialize array. */
for ( i = 0; i < size; ++i )
{
array[i] = i;
}
/* Perform calculations. */
for ( i = 0; i < size; ++i )
{
array[i] *= 2;
}
/* Print array. */
for ( i = 0; i < size; ++i )
{
printf("%d,", array[i]);
}
putchar('\n');
}
int main(void)
{
int myarray[25];
fum(myarray, ARRAYSIZE(myarray));
return 0;
}
/* my output
0,2,4,6,8,10,12,14,16,18,20,22,24,26,28,30,32,34,36,38,40,42,44,46,48,
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Join Date: Sep 2005
Location: ga
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Light Poster
copy-paste 
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Join Date: Aug 2005
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Newbie Poster
What is the use of size_t . When we can use int for the same work to do.
Ashwin Perti
Ashwin Perti
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Join Date: Apr 2004
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A size_t is an unsigned integral type which is the result of the sizeof operator. The two are designed to go together. To me it's the type most suited to indexing an array (you don't need negative indexes, do you?).
Sure you could use an int and it will be correct 99.999% of the time -- I was just going for 100%. Plus, with an array of ints, I find it easier to see the index from the data if they're not just slopped together.
Sure you could use an int and it will be correct 99.999% of the time -- I was just going for 100%. Plus, with an array of ints, I find it easier to see the index from the data if they're not just slopped together.
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Join Date: Aug 2005
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Newbie Poster
I could not understand how exactly we can change the dimension of the array dynamically. Size once taken cannot be changed during the course of the program.
Ashwin Perti
Ashwin Perti
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Join Date: Apr 2004
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It is not in regard to changing an array's size dynamically. It is in regard to recompiling on different systems.
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Join Date: Sep 2005
Location: ga
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Light Poster
I think you ppl lost me there. I am not a wizard, however I do used to belive you can change the size during the program is running .
Clara Ventures
www.cellforum.net
Clara Ventures
www.cellforum.net
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