Date: Fri, 21 Jul 1995 19:52:00 -0400 (EDT) From: Chuck Robey <chuckr@Glue.umd.edu> To: amnuay muthitacharoen <amnuay@comnet.spu.ac.th> Cc: questions@FreeBSD.org Subject: Re: Gnu C++ Compilation Problem Message-ID: <Pine.SUN.3.91.950721194945.15366B-100000@cappuccino.eng.umd.edu> In-Reply-To: <Pine.AUX.3.91.950721114141.8678A-100000@comnet.spu.ac.th>
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On Fri, 21 Jul 1995, amnuay muthitacharoen wrote:
>
> When I compiled the following Gnu C++ program in FreeBSD Unix
> installed from the FreeBSD CDROM :-
>
> #include <iostream.h>
> #include "/usr/include/math.h"
> void
> main()
> {
> int num ;
>
> cout << "Enter num : " ;
> cin >> num ;
> cout <<"The cube of " << num << " is " << pow(num,3) <<" .\n" ;
> }
>
>
> I got the following messages :-
>
> 1) /var/tmp/cc0100421.0: Undefined symbol '_pow' referenced from text segment
>
> 2) /usr/lib/libg++.so.2.0: Undefined symbol "_pow" referenced
You called pow with at least one int, the 3 might be an int too. Pow is
supposed to be double pow( double, double), so you confused the system.
Change your types, I bet it will work if you give it the right ones.
Remember that under C++, the types are combined with the function name to
define which function you *really* call.
----------------------------+-----------------------------------------------
Chuck Robey | Interests include any kind of voice or data
chuckr@eng.umd.edu | communications topic, C programming, and Unix.
9120 Edmonston Ct #302 |
Greenbelt, MD 20770 | I run Journey2 (Freebsd 2.0) and n3lxx
(301) 220-2114 | (FreeBSD 1.1.5.1) and am I happy!
----------------------------+-----------------------------------------------
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