Hi, I need some help from my C++ program. The code that I put below needs to hav

Question

Hi, I need some help from my C++ program. The code that I put below needs to have void main(void) instead of int main() since the requeriments have oid main(void) instead of int main(). It is possible to use main(void)? Because I have problems compiling the code. Thanks.

Code:

#include <iostream>

using namespace std;

struct StringRec

{

int strLen;

char theStr[256];

};

// adds one character to the string

void AddChar(StringRec& str, char theCh);

// adds one character to the string

void OutputString(StringRec str);

// outputs the string and the length of the string

bool CheckString(StringRec str);

// returns true if string is a palindrome, false otherwise

void main(void)

{

StringRec theString;

char theChar;

theString.strLen = 0;

cout << "Enter a string: ";

cin.get(theChar);

while (theChar != ' ')

{

AddChar(theString, theChar);

cin.get(theChar);

}

OutputString(theString);

if (CheckString(theString))

cout << "The string is a palindrome ";

else

cout << "The string is not a palindrome ";

}

// add character one by one in char array and increase strlen by one every time

void AddChar(StringRec& str, char ch)

{

str.theStr[str.strLen] = ch;

str.strLen++;

}

//print element of char array one by one until upto strlen

void OutputString(StringRec str) {

int i;

for (i = 0; i<str.strLen; i++) {

cout << str.theStr[i];

}

}

//print element of char array one by one until upto strlen

// to check string or char array is palindrome or not

//compare the first element with last

//then second with second last......and so on......example.......abcba

// if not follow then break the loop

bool CheckString(StringRec str)

{

int i, f = 0;

for (i = 0; i<str.strLen / 2; i++)

{

if (str.theStr[i] != str.theStr[str.strLen - 1 - i])

{

f = 1;

break;

}

}

if (f == 0)

return true;

else

return false;

}

Explanation / Answer

Dear STudent,

You know that main return a value that is accepted by the operating system for successful or unsuccessful executuion of a program.In C++, main() must return int.

If return value is 0 it means successful, or 1 it means unsuccessful execution.

void main() is legal in C , but is illegal in C++ it specifically requires main to return int for C++.

Since you're using a C++ compiler it would not compiled if you use void main().

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