what does this means?

[uche]

================================================== ====================
/tmp/ccQD4F8B.o(.text+0xef): In function `main':
: undefined reference to `Cdisk::open(char const*,
std::basic_ifstream<char, std::char_traits<char&)'
/tmp/ccQD4F8B.o(.text+0x128): In function `main':
: undefined reference to `Cdisk::tell(std::basic_ifstream<char,
std::char_traits<char&) const'
/tmp/ccQD4F8B.o(.text+0x150): In function `main':
: undefined reference to `Cdisk::seek(int, std::basic_ifstream<char,
std::char_traits<char&)'
/tmp/ccQD4F8B.o(.text+0x16e): In function `main':
: undefined reference to `Cdisk::eof(std::basic_ifstream<char,
std::char_traits<char&) const'
/tmp/ccQD4F8B.o(.text+0x279): In function `retrieve_bytes(unsigned
char*, std::basic_ifstream<char, std::char_traits<char&, int&,
int&, Cdisk&)':
: undefined reference to `Cdisk::read(char*, std::basic_ifstream<char,
std::char_traits<char&, int&, int&)'
collect2: ld returned 1 exit status
================================================== ====================

[kwikius]

On 27 Feb, 09:41, "uche" <[e-mail]:

It means you havent made the definitions of these functions available
to the linker.

regards
Andy Little