My C program is taking only one input instead of multiple input-CodePudding

I am a beginner and I am learning the C programming language. I am trying to make a program of two matrices that will take input and show output.

I have written a C program for that but it is taking only one input. After taking one input the program is terminating automatically.

Here is my C code:

#include <stdio.h>

void matrixInput(int rows, int cols, int matrix[rows][cols], int matrixNo) {
  printf("Matrix %d input:\n", matrixNo);

  for (int i = 0; i < rows; i  ) {
    for (int j = 0; j < cols; j  ) {
      printf("Matrix %d [%d, %d]: ", matrixNo, i   1, j   1);
      scanf("%d", &matrix[i][j]);
    }
  }

  printf("\n");
}

void matrixDisplay(int rows, int cols, int matrix[rows][cols], int matrixNo) {
  printf("Matrix %d output:\n", matrixNo);

  for (int i = 0; i < rows; i  ) {
    for (int j = 0; j < cols; j  ) {
      printf("%d ", matrix[i][j]);
    }
    printf("\n");
  }

  printf("\n");
}

int main() {
  int rows, columns;

  printf("Rows: ");
  scanf("%d", &rows);
  printf("Columns: ");
  scanf("%d", &columns);

  int matrix1[rows][columns], matrix2[rows][columns];

  matrixInput(matrix1, rows, columns, 1);
  matrixInput(matrix2, rows, columns, 2);
  
  matrixDisplay(matrix1, row, column, 1);
  matrixDisplay(matrix2, row, column, 2);

  return 0;
}

Why this is happening? How can I solve the problem?

CodePudding user response：

void matrixInput(int rows, int cols, int matrix[rows][cols], int matrixNo)

but you are calling

  matrixInput(matrix1, rows, columns, 1);

while it must be

  matrixInput(rows, columns,matrix1, 1);

CodePudding user response：

The order of arguments in these calls

matrixInput(matrix1, rows, columns, 1);
matrixInput(matrix2, rows, columns, 2);

matrixDisplay(matrix1, row, column, 1);
matrixDisplay(matrix2, row, column, 2);

does not corresponds to the order of the function parameter declarations

void matrixInput(int rows, int cols, int matrix[rows][cols], int matrixNo) {

and

void matrixDisplay(int rows, int cols, int matrix[rows][cols], int matrixNo) {

You need to write for example

matrixInput(rows, columns, matrix1, 1);