help with an encryption/decryption program.
i keep getting the errors
.\encrypt.cpp(5): error C2447: '{': missing function header (old-style formal list?)
.\encrypt.cpp(118): error C2447: '{': missing function header (old-style formal list?)
.\encrypt.cpp(237): error C2065: 'results': undeclared identifier
.\encrypt.cpp(245): error C2065: 'results': undeclared identifier
.\encrypt.cpp(250): error C2065: 'results': undeclared identifier
.\encrypt.cpp(252): error C2065: 'results': undeclared identifier
this is my code
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#include "encrypt.h"
#include <iostream>
string encrypt( string input );
{
string results = "";
for ( int i=0; i<input.length(); i++ )
{
if ( input[i] == 'a' )
{
results = results + "z";
}
else if ( input[i] == 'b' )
{
results = results + "y";
}
else if ( input[i] == 'c' )
{
results = results + "x";
}
else if ( input[i] == 'd' )
{
results = results + "w";
}
else if ( input[i] == 'e' )
{
results = results + "v";
}
else if ( input[i] == 'f' )
{
results = results + "u";
}
else if ( input[i] == 'g' )
{
results = results + "t";
}
else if ( input[i] == 'h' )
{
results = results + "s";
}
else if ( input[i] == 'i' )
{
results = results + "r";
}
else if ( input[i] == 'j' )
{
results = results + "q";
}
else if ( input[i] == 'k' )
{
results = results + "p";
}
else if ( input[i] == 'l' )
{
results = results + "o";
}
else if ( input[i] == 'm' )
{
results = results + "n";
}
else if ( input[i] == 'n' )
{
results = results + "m";
}
else if ( input[i] == 'o' )
{
results = results + "l";
}
else if ( input[i] == 'p' )
{
results = results + "k";
}
else if ( input[i] == 'q' )
{
results = results + "j";
}
else if ( input[i] == 'r' )
{
results = results + "i";
}
else if ( input[i] == 's' )
{
results = results + "h";
}
else if ( input[i] == 't' )
{
results = results + "g";
}
else if ( input[i] == 'u' )
{
results = results + "f";
}
else if ( input[i] == 'v' )
{
results = results + "e";
}
else if ( input[i] == 'w' )
{
results = results + "d";
}
else if ( input[i] == 'x' )
{
results = results + "c";
}
else if ( input[i] == 'y' )
{
results = results + "b";
}
else if ( input[i] == 'z' )
{
results = results + "a";
}
return (results);
}
}
string decrypt( string input );
{
string results = "";
for ( int i=0; i<input.length(); i++ )
{
if ( input[i] == 'a' )
{
results = results + "z";
}
else if ( input[i] == 'b' )
{
results = results + "y";
}
else if ( input[i] == 'c' )
{
results = results + "x";
}
else if ( input[i] == 'd' )
{
results = results + "w";
}
else if ( input[i] == 'e' )
{
results = results + "v";
}
else if ( input[i] == 'f' )
{
results = results + "u";
}
else if ( input[i] == 'g' )
{
results = results + "t";
}
else if ( input[i] == 'h' )
{
results = results + "s";
}
else if ( input[i] == 'i' )
{
results = results + "r";
}
else if ( input[i] == 'j' )
{
results = results + "q";
}
else if ( input[i] == 'k' )
{
results = results + "p";
}
else if ( input[i] == 'l' )
{
results = results + "o";
}
else if ( input[i] == 'm' )
{
results = results + "n";
}
else if ( input[i] == 'n' )
{
results = results + "m";
}
else if ( input[i] == 'o' )
{
results = results + "l";
}
else if ( input[i] == 'p' )
{
results = results + "k";
}
else if ( input[i] == 'q' )
{
results = results + "j";
}
else if ( input[i] == 'r' )
{
results = results + "i";
}
else if ( input[i] == 's' )
{
results = results + "h";
}
else if ( input[i] == 't' )
{
results = results + "g";
}
else if ( input[i] == 'u' )
{
results = results + "f";
}
else if ( input[i] == 'v' )
{
results = results + "e";
}
else if ( input[i] == 'w' )
{
results = results + "d";
}
else if ( input[i] == 'x' )
{
results = results + "c";
}
else if ( input[i] == 'y' )
{
results = results + "b";
}
else if ( input[i] == 'z' )
{
results = results + "a";
}
return (results);
}
}
void encryptDecrypt( string input, string output )
{
ifstream in( input );
ofstream out( output );
string command;
in >> results;
in >> command;
while ( !in.fail() )
{
if ( command == "encrypt" )
{
encrypt( input );
out << "encrypted: " << results << endl;
}
else if ( command == "decrypt")
{
decrypt( input );
out << "decrypted: " << results << endl;
}
in >> results;
in >> command;
}
}
|
and this is the header
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#include <iostream>
#include <string>
#include <iomanip>
#include <fstream>
using namespace std;
using std::string;
using std::ifstream;
using std::ofstream;
using std::endl;
void encryptDecrypt( string inputfile, string outputfile );
string encrypt( string input );
string decrypt( string input );
|
Could someone please advise on how to correct these errors.
take the ; off of the function body def. It does not go there.
for example
string decrypt( string input ); <-------- this is your problem, remove it.
Last edited on
I have corrected the errors but I am not getting any output.
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|
#include "encrypt.h"
string encrypt( string input )
{
string results = "";
for ( int i=0; i<input.length(); i++ )
{
if ( input[i] == 'a' )
{
results = results + "z";
}
else if ( input[i] == 'b' )
{
results = results + "y";
}
else if ( input[i] == 'c' )
{
results = results + "x";
}
else if ( input[i] == 'd' )
{
results = results + "w";
}
else if ( input[i] == 'e' )
{
results = results + "v";
}
else if ( input[i] == 'f' )
{
results = results + "u";
}
else if ( input[i] == 'g' )
{
results = results + "t";
}
else if ( input[i] == 'h' )
{
results = results + "s";
}
else if ( input[i] == 'i' )
{
results = results + "r";
}
else if ( input[i] == 'j' )
{
results = results + "q";
}
else if ( input[i] == 'k' )
{
results = results + "p";
}
else if ( input[i] == 'l' )
{
results = results + "o";
}
else if ( input[i] == 'm' )
{
results = results + "n";
}
else if ( input[i] == 'n' )
{
results = results + "m";
}
else if ( input[i] == 'o' )
{
results = results + "l";
}
else if ( input[i] == 'p' )
{
results = results + "k";
}
else if ( input[i] == 'q' )
{
results = results + "j";
}
else if ( input[i] == 'r' )
{
results = results + "i";
}
else if ( input[i] == 's' )
{
results = results + "h";
}
else if ( input[i] == 't' )
{
results = results + "g";
}
else if ( input[i] == 'u' )
{
results = results + "f";
}
else if ( input[i] == 'v' )
{
results = results + "e";
}
else if ( input[i] == 'w' )
{
results = results + "d";
}
else if ( input[i] == 'x' )
{
results = results + "c";
}
else if ( input[i] == 'y' )
{
results = results + "b";
}
else if ( input[i] == 'z' )
{
results = results + "a";
}
return (results);
}
}
string decrypt( string input )
{
string results = "";
for ( int i=0; i<input.length(); i++ )
{
if ( input[i] == 'a' )
{
results = results + "z";
}
else if ( input[i] == 'b' )
{
results = results + "y";
}
else if ( input[i] == 'c' )
{
results = results + "x";
}
else if ( input[i] == 'd' )
{
results = results + "w";
}
else if ( input[i] == 'e' )
{
results = results + "v";
}
else if ( input[i] == 'f' )
{
results = results + "u";
}
else if ( input[i] == 'g' )
{
results = results + "t";
}
else if ( input[i] == 'h' )
{
results = results + "s";
}
else if ( input[i] == 'i' )
{
results = results + "r";
}
else if ( input[i] == 'j' )
{
results = results + "q";
}
else if ( input[i] == 'k' )
{
results = results + "p";
}
else if ( input[i] == 'l' )
{
results = results + "o";
}
else if ( input[i] == 'm' )
{
results = results + "n";
}
else if ( input[i] == 'n' )
{
results = results + "m";
}
else if ( input[i] == 'o' )
{
results = results + "l";
}
else if ( input[i] == 'p' )
{
results = results + "k";
}
else if ( input[i] == 'q' )
{
results = results + "j";
}
else if ( input[i] == 'r' )
{
results = results + "i";
}
else if ( input[i] == 's' )
{
results = results + "h";
}
else if ( input[i] == 't' )
{
results = results + "g";
}
else if ( input[i] == 'u' )
{
results = results + "f";
}
else if ( input[i] == 'v' )
{
results = results + "e";
}
else if ( input[i] == 'w' )
{
results = results + "d";
}
else if ( input[i] == 'x' )
{
results = results + "c";
}
else if ( input[i] == 'y' )
{
results = results + "b";
}
else if ( input[i] == 'z' )
{
results = results + "a";
}
return (results);
}
}
void encryptDecrypt( string input, string output )
{
ifstream in( input );
ofstream out( output );
string results;
string command;
in >> results;
in >> command;
while ( !in.fail() )
{
if ( command == "encrypt" )
{
string results = encrypt( input );
out << "encrypted: " << results << endl;
}
else if ( command == "decrypt")
{
string results = decrypt( input );
out << "decrypted: " << results << endl;
}
in >> results;
in >> command;
}
}
|
This is my new code.
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