#include #include #include /* Function prototypes */ void fillArray2D(int nrows, int ncols, int a[nrows][ncols]); void displayArray2D(int nrows, int ncols, int a[nrows][ncols]); int getMaxArray2D(int nrows, int ncols, int a[nrows][ncols]); int getMinArray2D(int nrows, int ncols, int a[nrows][ncols]); /* main() * * Program to demonstrate the use of Variable Length Arrays * (VLAs) as per the C99 standard. * * This program demonstrates the creation of a Variable Length * Array, how to declare functions that accept a VLA as a * parameter, how to handle a VLA passed as an argument to a * function, and how to pass a VLA to a function. * * NOTE: Requires a C compiler that conforms to the C99 standard. * */ int main(void) { /* Variable declarations */ int cols, rows; /* Seed the random number generator */ srand(time(NULL)); /* Set the array dimensions at run time This could also be done with user input values */ rows = 8; cols = 20; /* Varialble Length Array declaration C99 standard NOTE: This must be declared after the variables have been assigned */ int myarray[rows][cols]; /* Randomize the array */ fillArray2D(rows, cols, myarray); /* Display the array */ displayArray2D(rows, cols, myarray); // Display the maximum value printf("MAX: %d\n", getMaxArray2D(rows, cols, myarray)); // Display the minimum value printf("MIN: %d\n", getMinArray2D(rows, cols, myarray)); return 0; } /* fillArray2D() * * This function fills a 2D Variable Length Array (VLA) with * random integer values. * * NOTE: Requires a C compiler that conforms to the C99 standard. * * Parameters: * * nrows: Integer representing the number of rows * ncols: Integer representing the number of columns * a[][]: A 2D VLA of integers of the size specified. * * Returns: * * Upon completion the VLA is filled with random integer * values. Does not return any other value. * */ void fillArray2D(int nrows, int ncols, int a[nrows][ncols]) { for(int i=0; i max) { max = a[i][j]; } } } return max; } /* getMinArray2D() * * This function processes a 2D Variable Length Array (VLA) to * determine the minimum value. * * NOTE: Requires a C compiler that conforms to the C99 standard. * * Parameters: * * nrows: Integer representing the number of rows * ncols: Integer representing the number of columns * a[][]: A 2D VLA of integers of the size specified. * * Returns: * * Integer representing the minimum value in the 2D VLA * */ int getMinArray2D(int nrows, int ncols, int a[nrows][ncols]) { int min = a[0][0]; for(int i=0; i