Thread: help with a structure

Sorry for the back to back posting. I've resolved many of the issues that have come up, but this one seems to have me stumped. It's a linker error. If this was 6 months ago I'd know how to fix it, unfortunately I've forgotten a lot of my little tricks. These are the errors:

Code:

Project   : Console application
Compiler  : GNU GCC Compiler (called directly)
Directory : C:\Documents and Settings\Andrew\My Documents\UKGS\
--------------------------------------------------------------------------------
Switching to target: default
Compiling: kCom.cpp
Linking console executable: C:\Documents and Settings\Andrew\My Documents\UKGS\UKGS.exe
.objs\kCom.o:kCom.cpp:(.text+0x814): undefined reference to `mime::ks64_encode(unsigned char*, unsigned char)'
.objs\kCom.o:kCom.cpp:(.text+0x87e): undefined reference to `mime::mime_encode(unsigned char*, unsigned char*, unsigned char)'
.objs\kCom.o:kCom.cpp:(.text+0x8e4): undefined reference to `mime::mime_encode(unsigned char*, unsigned char*, unsigned char)'
.objs\kCom.o:kCom.cpp:(.text+0x941): undefined reference to `mime::ks64_encode(unsigned char*, unsigned char)'
collect2: ld returned 1 exit status
Process terminated with status 1 (0 minutes, 0 seconds)

I'm using Code::Blocks with miniGW, running XP through parallels on a Macbook Pro.

I can't show the entire sections of the code because it's somewhat classified, but this is an example of where the error is displaying:
In kCom.cpp

Code:

if( newMime.ks64_encode( &enc_data[enc_index], cmd ) != 0x00 )

mime.cpp (edited for confidentiality)

Code:

unsigned char ks64_encode(unsigned char *dest,unsigned char raw )
{
    if((thing <= thing))
        //do stuff
    else if((thing >= thing) && (thing <= thing))
         //do stuff
    else if((thing >= thing) && (thing <= thing))
         //do stuff
    else if (thing == thing)
         //do stuff
    else if (thing == thing)
         //do stuff
    return thing
}

mime.h

Code:

#ifndef MIME
#define MIME

class mime
{

    public:
        mime();
        ~mime();
        unsigned char mime_encode(unsigned char *dest, unsigned char *raw_data, unsigned char num_raw);
        unsigned char mime_decode(unsigned char *dest, unsigned char *num_raw, unsigned char *enc_data);

        unsigned char ks64_encode(unsigned char *dest, unsigned char raw);
        unsigned char ks64_decode(unsigned char *dest, unsigned char character);

    private:

};
#endif

Anything that can get rid of this little error will be great. It's been tormenting me for a while now.

unsigned char ks64_encode(unsigned char *dest,unsigned char raw )

looks like a regular function to me, but since in the header it's a member function, I'd suggest this change

unsigned char mime::ks64_encode(unsigned char *dest,unsigned char raw )

Thanks Darryl, that worked. Guess I forgot to add the class stuff in the mime.cpp file.

Next question. I need to convert an unsigned long to an array of unsigned chars. Does anybody have any quick ways of doing this?


edit: I think I may have got it actually, found something on av.com right after I posted

Code:

             raw_period[3] = (unsigned char)period;
             raw_period[2] = (unsigned char)(period >> 8);
             raw_period[1] = (unsigned char)(period >> 16);
             raw_period[0] = (unsigned char)(period >> 24);

where raw_period is the unsigned char array, and period is the unsigned long