No idea how to do that I making a tic tac toe game and I wanna pass the grid to the function
i have tried pointers but it just comes up with a compiler error like char * can not be converted to char *[][12] any help please
Ryan
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No idea how to do that I making a tic tac toe game and I wanna pass the grid to the function
i have tried pointers but it just comes up with a compiler error like char * can not be converted to char *[][12] any help please
Ryan
If you have a 2D array:
char tiles[3][3];
Then you can have a function which recieves the tile:
void TileFunc(char [][3] _tiles)
{
_tiles[0][0] = 0;
}
Then you can pass the 'tiles'-array simply using:
TileFunc(tiles);
Try to post some code next time!!!!!!!!!!
http://www.geocities.com/awjackin352.../CPlusPlus.htm
//Header files.
#include< iostream >
#include< iomanip.h >
#include< fstream.h >
#include< math.h >
//Constant integer to set the size of the matrix.
const int max=7;
//Prototypes for all of the functions.
void creatematrix(int avg[][max], int val);
void makemagicsquare( int avg[][max], int val);
void outputmatrix(int avg[][max], ostream& os);
int main() //Main function starts.
{
int avg[max][max]; //Define the array.
int val=0; //Set the value of each array element
//to zero
ofstream outFile("A:/7X7.txt"); //Send the output to the floppy.
int sum=0; //Set the sum of the values in the
//last row to zero.
int col; //Declare the j index as a int.
//Function calls and the loop to count the last row.
creatematrix(avg, val);
makemagicsquare(avg, val);
outputmatrix(avg, outFile);
//For loop to count the values in the last row.
for(col=0; col< max; col++){
sum+=avg[max-1][col];
}
//Output the corners of the matrix and the middle value and the sum of
//the last row.
outFile<<"THE VALUE IN THE UPPER LEFT-HAND CORNER IS:"<< avg[0][0]<< endl;
outFile<<"THE VALUE IN THE UPPER RIGHT-HAND CORNER IS:"<< avg[0][max-1]<< endl;
outFile<<"THE VALUE IN THE BOTTOM RIGHT-HAND CORNER IS:"<< avg[max-1][max-1]<< endl;
outFile<<"THE VALUE IN THE BOTTOM LEFT-HAND CORNER IS:"<< avg[max-1][0]<< endl;
outFile<<"THE VALUE IN THE MIDDLE IS:"<< avg[max/2][max/2]<< endl;
outFile<<"THE SUM OF THE VALUES IN THE LAST ROW:"<<" "<< sum<< endl;
//The following for loops manipulate the matrix for the different
//rotations
outFile<<"HORIZONTAL ROTATION OF ORIGINAL MATRIX"<< endl;
for(int row=max;row > 0; row--){
for( col=0; col < max; col++){
outFile<< setw(7)<< avg[row-1][col];
}
outFile<< endl<< endl;
}
outFile<<"VERTICAL ROTATION OF ORIGINAL MATRIX"<< endl;
for( row=0; row < max; row++){
for(col=max; col > 0;col--){
outFile<< setw(7)<< avg[row][col-1];
}
outFile<< endl<< endl;
}
outFile<< endl;
outFile<<"LEFT DIAGONAL ROTATION OF ORIGINAL MATRIX"<< endl;
for( row=0; row < max; row++){
for(int col=0; col < max; col++){
outFile<< setw(7)<< avg[col][row];
}
outFile<< endl<< endl;
}
outFile<< endl;
outFile<<"RIGHT DIAGONAL ROTATION OF ORIGINAL MATRIX"<<endl;
for( row=max; row > 0; row--){
for(col=max; col > 0;col--){
outFile<< setw(7)<< avg[col-1][row-1];
}
outFile<< endl<< endl;
}
outFile<< endl;
return 0;
}
//-----------------------------------------------------------------
//Function to initialize the square to zero.
void creatematrix(int avg[][max], int val)
{
for(int row=0; row < max; row++) //For Loops to initialize the array.
for(int col=0; col < max; col++)
{
avg[row][col]=0; //Set the array to zero.
}
}
//--------------------------------------------------------------------
//Function that makes the magic Square.
void makemagicsquare( int avg[][max],int val)
{
int valmax=max*max; //Sets up the numbers to increment for
//the while loop.
int row=0; //Set the row index to zero.
int col=0; //Set the column index to zero
int sum=0; //Set the sum value to zero.
val++; //Increment val to start at one.
avg[row][max/2]=val; //Places one in the proper column.
val++; //Increments val again.
row=0; //Places i in the proper array.
col=max/2; //Defines the column position for one.
int rowindex, colindex; //Redefines the indexes to a different
//variable.
while(val <= valmax) //Loop to start assigning the numbers
//to their proper place in the array.
{
rowindex=row; //Redefine the row index
colindex=col; //Redefine the col index
row--; //Decrement the row index to be outside
//of the array
if(row < 0) //If statement to test the row index.
{
row=max-1; //Sets the row index to one less than
// the max value.
}
col--; //Decrement the column index
if(col < 0) //Test the column index.
{
col=max-1; //Sets the column index to one less that
//the max value
}
if(avg[row][col] !=0) //Tests to see if the array is equal to
//zero.
{
row=rowindex; //Redefines the row index
col=colindex; //Redefines the col index
row++; //Increment the row index
avg[row][col]=val; //Assigns the number to the array address.
}
else
{
avg[row][col]=val; //Assigns the number to the array address.
}
val++; //Increments the value for the next loop.
} //end of while loop
}
///-------------------------------------------------------------------
//Output function to output all of the functions in the program.
void outputmatrix(int avg[][max],ostream& os)
{
int row;
int col;
for(row=0; row < max; row++)
for(col=0; col < max; col++)
{
if(col % max ==0)
os<< endl<< endl;
os<< setw(7)<< avg[row][col];
}
os<< endl<< endl;
Try to post some code next time!!!!!!!!!!
http://www.geocities.com/awjackin352.../CPlusPlus.htm
gliptic is correct!!!!
//Header files.
#include< iostream >
#include< iomanip.h >
#include< fstream.h >
#include< math.h >
//Constant integer to set the size of the matrix.
const int max=7;
//Prototypes for all of the functions.
void creatematrix(int avg[][max], int val);
void makemagicsquare( int avg[][max], int val);
void outputmatrix(int avg[][max], ostream& os);
int main() //Main function starts.
{
int avg[max][max]; //Define the array.
int val=0; //Set the value of each array element
//to zero
ofstream outFile("A:/7X7.txt"); //Send the output to the floppy.
int sum=0; //Set the sum of the values in the
//last row to zero.
int col; //Declare the j index as a int.
//Function calls and the loop to count the last row.
creatematrix(avg, val);
makemagicsquare(avg, val);
outputmatrix(avg, outFile);
//For loop to count the values in the last row.
for(col=0; col< max; col++){
sum+=avg[max-1][col];
}
//Output the corners of the matrix and the middle value and the sum of
//the last row.
outFile<<"THE VALUE IN THE UPPER LEFT-HAND CORNER IS:"<< avg[0][0]<< endl;
outFile<<"THE VALUE IN THE UPPER RIGHT-HAND CORNER IS:"<< avg[0][max-1]<< endl;
outFile<<"THE VALUE IN THE BOTTOM RIGHT-HAND CORNER IS:"<< avg[max-1][max-1]<< endl;
outFile<<"THE VALUE IN THE BOTTOM LEFT-HAND CORNER IS:"<< avg[max-1][0]<< endl;
outFile<<"THE VALUE IN THE MIDDLE IS:"<< avg[max/2][max/2]<< endl;
outFile<<"THE SUM OF THE VALUES IN THE LAST ROW:"<<" "<< sum<< endl;
//The following for loops manipulate the matrix for the different
//rotations
outFile<<"HORIZONTAL ROTATION OF ORIGINAL MATRIX"<< endl;
for(int row=max;row > 0; row--){
for( col=0; col < max; col++){
outFile<< setw(7)<< avg[row-1][col];
}
outFile<< endl<< endl;
}
outFile<<"VERTICAL ROTATION OF ORIGINAL MATRIX"<< endl;
for( row=0; row < max; row++){
for(col=max; col > 0;col--){
outFile<< setw(7)<< avg[row][col-1];
}
outFile<< endl<< endl;
}
outFile<< endl;
outFile<<"LEFT DIAGONAL ROTATION OF ORIGINAL MATRIX"<< endl;
for( row=0; row < max; row++){
for(int col=0; col < max; col++){
outFile<< setw(7)<< avg[col][row];
}
outFile<< endl<< endl;
}
outFile<< endl;
outFile<<"RIGHT DIAGONAL ROTATION OF ORIGINAL MATRIX"<<endl;
for( row=max; row > 0; row--){
for(col=max; col > 0;col--){
outFile<< setw(7)<< avg[col-1][row-1];
}
outFile<< endl<< endl;
}
outFile<< endl;
return 0;
}
//-----------------------------------------------------------------
//Function to initialize the square to zero.
void creatematrix(int avg[][max], int val)
{
for(int row=0; row < max; row++) //For Loops to initialize the array.
for(int col=0; col < max; col++)
{
avg[row][col]=0; //Set the array to zero.
}
}
//--------------------------------------------------------------------
//Function that makes the magic Square.
void makemagicsquare( int avg[][max],int val)
{
int valmax=max*max; //Sets up the numbers to increment for
//the while loop.
int row=0; //Set the row index to zero.
int col=0; //Set the column index to zero
int sum=0; //Set the sum value to zero.
val++; //Increment val to start at one.
avg[row][max/2]=val; //Places one in the proper column.
val++; //Increments val again.
row=0; //Places i in the proper array.
col=max/2; //Defines the column position for one.
int rowindex, colindex; //Redefines the indexes to a different
//variable.
while(val <= valmax) //Loop to start assigning the numbers
//to their proper place in the array.
{
rowindex=row; //Redefine the row index
colindex=col; //Redefine the col index
row--; //Decrement the row index to be outside
//of the array
if(row < 0) //If statement to test the row index.
{
row=max-1; //Sets the row index to one less than
// the max value.
}
col--; //Decrement the column index
if(col < 0) //Test the column index.
{
col=max-1; //Sets the column index to one less that
//the max value
}
if(avg[row][col] !=0) //Tests to see if the array is equal to
//zero.
{
row=rowindex; //Redefines the row index
col=colindex; //Redefines the col index
row++; //Increment the row index
avg[row][col]=val; //Assigns the number to the array address.
}
else
{
avg[row][col]=val; //Assigns the number to the array address.
}
val++; //Increments the value for the next loop.
} //end of while loop
}
///-------------------------------------------------------------------
//Output function to output all of the functions in the program.
void outputmatrix(int avg[][max],ostream& os)
{
int row;
int col;
for(row=0; row < max; row++)
for(col=0; col < max; col++)
{
if(col % max ==0)
os<< endl<< endl;
os<< setw(7)<< avg[row][col];
}
os<< endl<< endl;
He just needed to know how to pass 2D arrays to a function. I showed him that.