Tagged Questions
1
vote
4answers
53 views
Manipulate multidimensional array in a function
I read a lot of stuff in here and tried many but i couldn't find a way to pass a multidimensional array to a function in C,change some of the values and somehow return the new array.
It's important to ...
1
vote
1answer
77 views
C - passing array to node of a linked list
I have a 2D array already filled with integers, ready to be cut to rows and processed, and I need each row (1D array) to be passed to a node of a linked list. Each node looks like this:
struct node {
...
13
votes
4answers
169 views
Peak element in an array in c
I am given an array of integers. I have to find a peak element in it.
An array element is peak if it is NOT smaller than its neighbors.
For corner elements,consider only one neighbor.
For example:
...
0
votes
4answers
74 views
Dereferencing array pointer in a function
How do you deference a pointer to an array to get the value stored in it? For example:
void testFunction(int **test){
printf("%d", *test[1]);
}
int main()
{ int test[10];
test[1] = 5;
...
1
vote
0answers
68 views
Difference between double** and &arr, where arr is a double[] [duplicate]
I am using C. I have a double array like this:
double arr[3]={1,2,3};
Next, I assumed that a
double[]
is just like
double *,
and thus I created this pointer variable:
double ** ppdArr = ...
2
votes
3answers
60 views
C - Array of strings (2D array) and memory allocation gets me unwanted characters
I have a tiny problem with my assignment. The whole program is about tree data structures but I do not have problems with that.
My problem is about some basic stuff: reading strings from user input ...
0
votes
3answers
82 views
Analyze memory usage of a C program
I know there are a lot of similar questions(i am not sure for a possible duplicate) but my question is specific enough.I am running a C program in Windows and Unix and i am experiencing a segmentation ...
2
votes
2answers
71 views
difference between int *a[3] and int (*a)[3]? [duplicate]
I want to know what is a difference between :
int *a[3];
And
int (*a)[3];
Thanks a lot , good luck .
0
votes
1answer
53 views
How to determine height and length of a 2D array from stdin?
My program has to read contents of a file like so:
name_of_program < Test.txt
Test.txt is a 2D array of integers (integers are separated by spaces, sometimes multiple ones, rows of integers are ...
-4
votes
0answers
33 views
Pointer to arrays of characters [closed]
I tried to create pointer to arrays of characters but there is an error. I used next line for allocation: char* array[3];
The only idea that i have is that the arrays are allocated statically and I ...
-3
votes
3answers
70 views
Pointers with Character array in C [closed]
What would be the output of the following program?
main( )
{
char s[ ] = "Get organised! learn C!!" ;
printf ( "\n%s", &s[2] ) ;
printf ( "\n%s", s ) ;
printf ( "\n%s", &s ) ;
...
0
votes
1answer
33 views
Are my solutions to printing an error due to file size and storing values right?
PART 1: What I need to do is print out an error if the file size exceeds the 500 by 500 measurements (defined at the top as max_width and height). I
PART 2: The other part is that I have to read the ...
1
vote
5answers
101 views
Iterating An Array Symmetrically
Wasn't exactly sure how to title this, but I hope it makes sense. I want to iterate an array forwards and then backwards, x number of times. One option is to double the size of the array and then ...
1
vote
3answers
71 views
how to memcpy the two dimensional array in C?
How to memcpy the two dimensional array in C:
I have a two dimensional array:
int a[100][100];
int c[10][10];
I want to use memcpy to copy the all the values in array c to array a, how to do this ...
-1
votes
1answer
131 views
Why Array index start from '0' [duplicate]
I have a question on C/C++ arrays.
Why does the index of the arrays start from '0' not from '1'?
Is there any mathematical reason for that?
