inputing a string

Hi all, I am having a problem with strings input.

Code:

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#include <iostream>
#include <string>
using namespace std;

main() {
string temp;
cin >> temp;

return 0;
}

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and when i try to compile it in Watcom C/C++, it somehow returns:

cd D:\Cryptography
wmake -f D:\Cryptography\Tools.mk -h -e D:\Cryptography\Tools.exe
wpp386 main.cpp -i=C:\WATCOM\h;C:\WATCOM\h\nt -w4 -e25 -zq -od -d2 -6r -bt=nt -mf -xs -xr
main.cpp(25): Error! E157: col(13) left expression must be integral
main.cpp(25): Note! N717: col(13) left operand type is 'std::istream watcall (lvalue)'
main.cpp(25): Note! N718: col(13) right operand type is 'std::basic_string<char,std::char_traits<char>,std ::allocator<char>> (lvalue)'
Error(E42): Last command making (D:\Cryptography\main.obj) returned a bad status
Error(E02): Make execution terminated
Execution complete

Standard C++ requires functions to have an explicit return type:

Code:

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int main() {

---

thanks...but after i changed it, it still wont compile, giving me the same error code.

Somehow, it looks like what you've shown here and the error messages don't match exactly - the error seems to be on line 25, which is a bit more than the 10 or so lines that you show here. Can you either:
1. Post the actual code that gives the error.
2. Post the error code from compiling this code.

I'm basing this on:

Quote:

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main.cpp(25): ...

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The number in brackets is usualy the line number.

--
Mats

ok... the whole code is

Code:

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#include <iostream>
#include <string>
#include <vector>
using namespace std;

int i, i1;                                      // Loop variables

char * strcat ( char*, char const* );

class Key {
   
    public:

    char value;                                // The actual key for shrift keys
    string code;                      // The key for other monoalpheric ciphers
    int length;                                // The length of the key
   
    char Shrift_Key[2][26];              // The entire key for a shrift cipher

    Key(char choice) {                        // Constructor
        string temp;              // A temporary array

        cout << "Enter the key." << endl;

        cin >> temp; // and this is where the error is
           
        if(!temp.length()) {
            cout <<  "You must enter a key inorder to preceed." << endl;
            return;
        }

        if(temp.length() == 1) {
            if(choice == 1) {
                if(temp[0] != (int) temp[0]) {
                    cout << "You must enter a number inorder to proceed." << endl;
                    return;
                }
                if(temp[0] <20) {
                    cout << "A re-arranging of this complex is not supported yet." << endl;
                    return;
                }
            }
                   
            else {
                length = 1;

                value = temp[0];
            }
        }

        if(temp.length()>26) {
            cout << "Decrypting with homophones is not avalible yet." << endl;
            return;
        }

        else {
            length = temp.length();

            for(i=0;i<length;++i) code[i] = temp[i];
        }
    };

};

class Cipher {

    public:

    int length;                    // Length of array
    string Text;

    Cipher() {                        // Constructor     
        cout << "Enter the encrypted-text." << endl;

        length = Text.length();
    };
};

void SplitCode(char choice);

void Menu(void);

int main() {return 0;}

void Menu(void) {
   
    char choice;                                // What to do
       
// starting the menu             
    cout << "Menu:" << endl;
    cout << "  1. Sort the cipher text into shrift siphers according to the key length" << endl;
    cout << "  2. Frequency analysis the cipher-text." << endl;
    cout << "  3. Decrypt a monoalpheric cipher with a key." << endl;
    cout << "Enter q to quit.\n" << endl;

    cout << "Enter your choice: ";
    cin >> choice;

    switch(choice) {
        case '1' :
            SplitCode(choice);
            Menu();
            break;
        case '2' :
            Menu();
            break;
        case '3' :
            Menu();
            break;
        case 'q' :
            break;
        default :
            cout << "Please enter a valid choice." << endl;
            Menu();
            break;
    }

}

void SplitCode(char choice) {
    Cipher Vigenerec;                      // Create an instance of the cipher object

    Key Vigenerek(choice);                            // Create an instance of the key

    int Rmd = Vigenerek.value &#37; Vigenerec.length;// The number of odd digits out (uncompleted bits of key)
    int ArrayLen = (Vigenerec.length - Rmd) / Vigenerek.value;
    if(Rmd) ArrayLen++;

    vector<char> Split_Text[20];

    for(i=0;i<Vigenerek.value;++i) Split_Text[i].resize(ArrayLen);
   
    for(i=0;i<Vigenerec.length;++i) {
        int r = i % 5;                          // The bit of the key
        int r2 = (i-r)/5;                      // How many times did the key looped

        Split_Text[r][r2] = Vigenerec.Text[i];
    }

    for(i=0;i<Vigenerek.value;++i) {
        for(i1=0;i1<ArrayLen;i++) cout << Split_Text[i][i1];

        cout << "" << endl;
    }
}

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and btw, it is not finished

That compiles fine with gcc mingw 3.4.2.

--
Mats