What am I doing wrong?, linking in C++
- by Facon
I'm trying to code a simple base64 encoder/decoder (to test my programming skill).
I can compile it, but it doesn't link, I've this message error:
C:\Documents and Settings\Facon\Escritoriog++ base64.o main.o -o prueba.exe
main.o:main.cpp:(.text+0x24a): undefined reference to `Base64Encode(std::vector const&)'
collect2: ld returned 1 exit status
Compiler & Linker: Mingw32 3.4.5
SO: Windows XP
This is my source code:
base64.h:
#ifndef BASE64_H
#define BASE64_H
#include <iostream>
#include <vector>
typedef unsigned char byte;
std::string Base64Encode(const std::vector<byte> &array);
std::vector<byte> Base64Decode(const std::string &array);
#endif
base64.cpp:
#include "base64.h"
std::string Base64Encode(std::vector<byte> &array)
{
const char *base64_table = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
const unsigned int size = array.size();
std::string output;
for (unsigned int i = 0; (i < size); i++)
{
if ((size - i) > 3)
{
output.push_back(static_cast<char>(base64_table[array[i] >> 2]));
output.push_back(static_cast<char>(base64_table[((array[i++] & 0x03) << 4) | ((array[i] & 0xF0) >> 4)]));
output.push_back(static_cast<char>(base64_table[((array[i++] & 0x0F) << 2) | ((array[i] & 0xC0) >> 4)]));
output.push_back(static_cast<char>(base64_table[array[i] & 0x3F]));
}
else if ((size - i) == 3)
{
output.push_back(static_cast<char>(base64_table[array[i] >> 2]));
output.push_back(static_cast<char>(base64_table[((array[i++] & 0x03) << 4) | ((array[i] & 0xF0) >> 4)]));
output.push_back(static_cast<char>(base64_table[(array[i] & 0x0F) << 2]));
output.push_back(static_cast<char>('='));
}
else if ((size - i) == 2)
{
output.push_back(static_cast<char>(base64_table[array[i] >> 2]));
output.push_back(static_cast<char>(base64_table[(array[i] & 0x03) << 4]));
output.push_back('=');
output.push_back('=');
}
}
return output;
}
std::vector<byte> Base64Decode(const std::string &array) // TODO
{
const char *base64_table = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
}
main.cpp:
#include <iostream>
#include <vector>
#include "base64.h"
using namespace std;
int main(int argc, char *argv[])
{
const char* prueba = "sure.";
vector<byte> texto;
string codificado;
for (unsigned int i = 0; (prueba[i] != 0); i++)
{
texto.push_back(prueba[i]);
}
codificado = Base64Encode(texto);
cout << codificado;
return 0;
}
PD: Sorry for my bad knowledge of English :P
