I am trying to finish this palindrome program and the only output I get is output cannot be found. Can anyone show me what I am doing wrong. I will put the instructions in if needed for a guide to show what it needs to do...
#include <windows.h>
#include <iostream>
#include <stack>
#include <queue>
using namespace std;
//START THE MAIN FUNCTION
int main(int argc, char *argv[])
{
//BEGIN THE INPUT FILE MAPPING
HANDLE hFile;
HANDLE hFileMap;
PVOID pvFile;
DWORD dwFileSize;
int i = 0;
//HAVE USER ENTER THE PATH FOLLOWED BY THE FILE NAME
//cout<< "Please enter the path and filename: ";
//cout << endl;
//Test for validity
char hFilename[] = "C:\\Users\\Bryan\\Documents\\CSI 345\\Palindrome\\Input.txt";
argv[1] = "C:\\Users\\Bryan\\Documents\\CSI 345\\Palindrome\\Input.txt";
//ALLOW THE HFILE TO RETURN A HANDLE TO THE OPEN FILE
hFile = CreateFile(argv[1], GENERIC_READ, 0, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
//IF STATEMENT TO CHECK IF FILE CAN BE OPENED
if (hFile == INVALID_HANDLE_VALUE)
{
//DISPLAY MESSAGE THAT FILE CANNOT BE OPEN
cout << "File could not be opened. " << endl;
return(FALSE);
}
//OPENS A FILE MAPPED OBJECT
hFileMap = CreateFileMapping(hFile, NULL, PAGE_READONLY, 0, 0, NULL);
//IF STATEMENT TO SEE IF HFILEMAP CAN BE OPENED
if (hFileMap == NULL)
{
//DISPLAY MESSAGE THAT THIS FILE CANNOT BE OPENED
cout << "File map could not be opened. " << endl;
CloseHandle(hFile);
return(FALSE);
}
//GIVES ADDRESS FOR DATA FILE
pvFile = MapViewOfFile(hFileMap, FILE_MAP_READ, 0, 0, 0);
//IF STATEMENT TO SEE IF PV FILE CAN BE OPENED
if (pvFile == NULL)
{
//DISPLAY MESSAGE THAT THIS FILE CANNOT BE OPENED
cout << "Could not map view of File. " << endl;
CloseHandle(hFileMap);
CloseHandle(hFile);
return(FALSE);
}
//GIVES THTE SIZE OF THE FILE
dwFileSize = GetFileSize(hFile, NULL);
//BEGIN OUTPUT FILE MAPPING
HANDLE oFile;
HANDLE oFileMap;
PVOID pvOFile;
DWORD dwOFileSize;
//TEST FOR VALIDITY
char oFilename[] = "C:\\Users\\Bryan\\Documents\\CSI 345\\Palindrome\\Output.txt";
argv[2] = "C:\\Users\\Bryan\\Documents\\CSI 345\\Palindrome\\Output.txt";
//HAVE USER ENTER THE PATH FOLLOWED BY THE FILE NAME
cout << "Please enter path and filename: ";
cout << endl;
//ALLOW THE oFILE TO RETURN A HANDLE TO THE OPEN FILE
oFile = CreateFile(oFilename, GENERIC_READ | GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
//IF STATEMENT TO CHECK IF FILE CAN BE OPENED
if (oFile == INVALID_HANDLE_VALUE)
{
//DISPLAY A MESSAGE FILE CANNOT BE OPENED
cout << "outFile could not be opened." << endl;
return(FALSE);
}
//OPENS A FILE MAPPED OBJECT
oFileMap = CreateFileMapping(oFile, NULL, PAGE_READWRITE, 0, dwFileSize, NULL);
//OPENS A FILE MAPPED OBJECT
if (oFileMap == NULL)
{
//DISPLAY A MESSAGE FILE CANNOT BE OPENED
cout << "File map could not be opened." << endl;
CloseHandle(oFile);
return(FALSE);
}
//GIVES ADDRESS FOR DATA FILE
pvOFile = MapViewOfFile(oFileMap, FILE_MAP_READ | FILE_MAP_WRITE, 0, 0, 0);
//IF STATEMENT TO SEE IF PV FILE CAN BE OPENED
if (pvOFile == NULL)
{
//DISPLAY A MESSAGE FILE CANNOT BE OPENED
cout << "Could not map view of File." << endl;
CloseHandle(hFileMap);
CloseHandle(hFile);
return(FALSE);
}
//INPUT FILE SIZE AND OUTPUT FILE SIZE MUST MATCH UP
dwOFileSize = dwFileSize;
//TEST THE SIZE OF THE FILE
cout << "The file size is: " << dwOFileSize << endl;
// pointer to the beginning address
PSTR hptr = (PSTR) pvFile;
PSTR optr = (PSTR) pvOFile;
// CHECK FOR PALINDROMES
char check;
bool palindrome = false;
char testArray [600];
char testOutArray [600];
int icount = 0;
int ocount = dwOFileSize;
int g = 0;
stack<char> stack;
queue<char> queue;
//Begin for statement
for (i = 0; i < dwFileSize; i++)
{
hptr[i];
}
for (i = 0; i < dwFileSize; i++)
{
stack.push(testArray[i]);
}
//CHECKS TO MAKE SURE A SPACE IS NOT FOUND
//IF SPACE IS NOT FOUND BEGIN TO PUSH ALL CHARACTERS TO ARRAYS
if (hptr[i] != ' ')
{
stack.push(testArray[i]);
queue.push(testOutArray[i]);
//TEST OUTPUT
icount++;
}
//IF THERE IS A SPACE COMPARE THE CHARACTERS IN REVERSE ORDER
if (hptr[i] == ' ')
{
//PERFORM WHILE STATEMENT FOR WHEN THTE STACK IS NOT EMPTY
while (!stack.empty())
{
stack.top() = testArray[g];
g ++;
stack.pop() ;
cout << "The top is:" << stack.top() << endl;
ocount --;
int i = 0;
}
}
}Create a utility that transfers words that are palindromes in the input file into the output file. Place a space between each palindrome written to the output file.
The input path and file name and the output path and file name must be gathered at runtime from the user. This can be accomplished via command line inputs (see argv and argc parameters in the main() function).
The program must use memory-mapped file input/output.
The contents of the input file must not be changed by your program (read only).
The definition of a palindrome, for purposes of this programming assignment, is a word which reads the same backward or forward. Examples of palindromes are mom, pop, kayak, noon, radar, and racecar.
While there are a number of methods available to test to see if a word is a palindrome, the most common method is to use a stack. Character[0] of the original string can be compared with character[n-1]. The next comparison would address character[1] with character[n-2]. Comparison continues until all characters are compared (the stack is empty) or there is an inequality (the word is not a palindrome).
The output file should contain only those words that are palindromes from the input file. Each word in the output file should be separated by a space.
Since the length of the output file is determined at runtime, and there is no way to predict how many palindromes will be present in the input file (without actually performing the test), there is no means to accurately predict the output file size required. Set the output file size to the input file size.
