key9 wrote:

> The strange is if I put the  implement code to .h file directly , for
> example,
> on  "LinuxTestTerminal.h"

> [key9@localhost unit]$ gcc -o test test.cpp -lstdc++
> /home/key9/tmp/ccgdxJIB.o(.text+0x1c2): In function `main':
> : undefined reference to `LinuxTestTerminal::printch(char*)'
> /home/key9/tmp/ccgdxJIB.o(.gnu.linkonce.t._ZN17LinuxTestTerminalC1Ev+0x19)
:
> In function  `LinuxTestTerminal::LinuxTestTerminal()'
:
> : undefined reference to `vtable for LinuxTestTerminal'
> collect2: ld returned 1 exit status

> ********/LinuxTestTerminal.cpp/*********
> #include <stdio.h>
> #include "Terminal.h"
>
> void
> LinuxTestTerminal::printch(char* ch){
>   printf("%c",*ch);
> }

You didn't tell the compiler about LinuxTestTerminal.cpp, so why should
it look there?

DS

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