c++ - Newbie needs your help
- E.T. (53/53) Nov 19 2003 Very basic problem, I guess...
- Matthew Wilson (7/60) Nov 19 2003 Are you dmc-ing both implementation files? e.g.
Very basic problem, I guess... This file compiles with no problems: // start of main.cpp class A { int n; public: void check(); }; void A::check() { n=1; } void main() { A objA; objA.check(); } // end of main.cpp But when I seperate it to 3 files: header, class functions implementation and main, the compilation fails: // start of header file class A { int n; public: void check(); }; // end of header file //start of class functions implementation file #include "A.h" void A::check() { n=1; } // end of class functions implementation file //start of main file #include "A.h" void main() { A objA; objA.check(); } //end of main file compilation output: link MAIN2,,,user32+kernel32/noi; OPTLINK (R) for Win32 Release 7.50B1 Copyright (C) Digital Mars 1989 - 2001 All Rights Reserved MAIN2.obj(MAIN2) Error 42: Symbol Undefined ?check A QAEXXZ (void syscall A::check(void )) --- errorlevel 1 ------ Output completed (0.4 sec consumed) ------ What is my mistake?
Nov 19 2003
Are you dmc-ing both implementation files? e.g. dmc main.cpp funcs.cpp? It looks like all you're doing is dmc main.cpp "E.T." <E.T._member pathlink.com> wrote in message news:bpfi2e$2ouk$1 digitaldaemon.com...Very basic problem, I guess... This file compiles with no problems: // start of main.cpp class A { int n; public: void check(); }; void A::check() { n=1; } void main() { A objA; objA.check(); } // end of main.cpp But when I seperate it to 3 files: header, class functions implementationandmain, the compilation fails: // start of header file class A { int n; public: void check(); }; // end of header file //start of class functions implementation file #include "A.h" void A::check() { n=1; } // end of class functions implementation file //start of main file #include "A.h" void main() { A objA; objA.check(); } //end of main file compilation output: link MAIN2,,,user32+kernel32/noi; OPTLINK (R) for Win32 Release 7.50B1 Copyright (C) Digital Mars 1989 - 2001 All Rights Reserved MAIN2.obj(MAIN2) Error 42: Symbol Undefined ?check A QAEXXZ (void syscall A::check(void )) --- errorlevel 1 ------ Output completed (0.4 sec consumed) ------ What is my mistake?
Nov 19 2003