Avoiding End-of-line (\n) after using Scanf.

theprofoundgeek

Hi,

I am writing a C code to add two matrices. I want to take input with a feel of real martice, some thing like

1 2 3
4 5 6
7 8 9

but the Scanf function automatically enter EOL and hence my input looks some thing like this,

1
2
3

4
5
6

7
8
9

any idea how to get this thing straight?

Here is the Code :

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// Write a program to add two matrices.
 
#include <stdio.h>

#include <conio.h>
 
void main()
 
{

        int row,column,**ptrA,**ptrB,**ptrC,counter1,counter2;

        clrscr();
 
        printf("Enter the number of row of the matrices to be processed:");

        scanf("%d",&row);
 
        printf("\nEnter the number of columns of the matrices to be processed:");

        scanf("%d",&column);
 
        ptrA=(int**)(calloc(row,sizeof(int *)));

        ptrB=(int**)(calloc(row,sizeof(int *)));

        ptrC=(int**)(calloc(row,sizeof(int *)));
 
        for (counter1=0;counter1<row;counter1++)

        {

            *(ptrA+counter1)=(int*)(calloc(column,sizeof(int)));

            *(ptrB+counter1)=(int*)(calloc(column,sizeof(int)));

            *(ptrC+counter1)=(int*)(calloc(column,sizeof(int)));

        }
 
        printf("\n\n\nEnter the values for First Matrice:\n\n\n");
 
        for (counter1=0;counter1<row;counter1++)

        {

            for (counter2=0;counter2<column;counter2++)

            {
 
                   printf(" \t");
 
                   scanf("%d",**((ptrA+counter1)+counter2));
 
            }

            printf("\n");

        }

Replies would be greatly appreciated!

--
Theprofoundgeek

P.s : Not - so - profound after this problem

donbock

You want the input to look like ...

a decimal number
some whitespace
a decimal number
some whitespace
a decimal number
newline

You need the scanf format string to reflect this desired input format.

theprofoundgeek

Quote:

Originally Posted by donbock

You want the input to look like ...

a decimal number
some whitespace
a decimal number
some whitespace
a decimal number
newline

You need the scanf format string to reflect this desired input format.

Donbock, that is a feasible solution, but the problem is that the number of elements to be scanned is dynamic, so how can I decide the length of scanf format string. Any Idea?

donbock

Construct the scanf format string dynamically based on the entered number of columns.

Copy text from stdin to an array and then parse the array contents.

Avoiding End-of-line (\n) after using Scanf.

re: Avoiding End-of-line (\n) after using Scanf.

re: Avoiding End-of-line (\n) after using Scanf.

re: Avoiding End-of-line (\n) after using Scanf.

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