Pig_latin program.

[bndong1984]

I stuck at main function. I don't know how to address user input to main(int argc, char *argv[]). user's input by ./pig_latin button .output: uttonbay. Any help would be appreciated.

#include<iostream>
#include <iomanip>
#include<string>

using namespace std;

bool errorCheck(string);
void firstLetter(string);
void wordTranslate(string);

int main(int argc, char *argv[])
{
	string wordInput=""; //array
	bool inputError = false;
	
    string wordInput = atoi(argv[1]);
    
            inputError = errorCheck(wordInput);

        
		if (inputError == false)
		{
			firstLetter(wordInput);
		}
	
	return 0;
}

bool errorCheck(string wordInput)
{
    bool errorVerif = false;
    int Length = wordInput.length();
    int Counter = 0;
    char *specificLetter = &wordInput.at(0);
    
    while (Counter < Length && errorVerif == false)
    {
        if (!isalpha(*specificLetter))
        {
            cout << *specificLetter << "is not an acceptable entry. Please re-enter your word.";
            errorVerif = true;
        }
        
        if (isspace(*specificLetter))
        {
            cout << *specificLetter << "is not an acceptable entry. Please re-enter your word.";
            errorVerif = true;
        }
        
        *specificLetter++;
        Counter++;
        
    }
    return errorVerif;
}

void firstLetter(string wordInput)
{
    char firstLetter;
    firstLetter = wordInput.at(0);
    
    if (firstLetter == 'a' || firstLetter == 'e' || firstLetter == 'i' || firstLetter == 'o' || firstLetter == 'u')
    {
        cout << "In Pig Latin, that would be " << wordInput << "way" << endl;
    }
    else
    {
        wordTranslate(wordInput);
    }
}

void wordTranslate(string wordInput)
{
    char firstLetter;
    char lastLetter = wordInput.length();
    
    firstLetter = wordInput.at(0);
    string otherLetters = wordInput.substr((1), (lastLetter - 1));
    cout << "In Pig Latin, that would be " << otherLetters << firstLetter << "ay." << endl;
}

[jmadsen]

atoi is a function to convert strings to integers.

replace

    string wordInput = atoi(argv[1]);

with

    // uses the string(const char*) constructor
    string wordInput = string(argv[1]);

[bndong1984]

Thanks. I changed and got this error when executed.

[code]
pig_latin.cpp:(.text+0x136): undefined reference to `firstLetter(std::basic_string<char, std::char_traits<char>, std::allocator<char> >)'
collect2: ld returned 1 exit status
[code]

[Smac89]

line 75 should be int or unsigned int?