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beakerfreak · Mar 14, 2002, 07:19 PM

I'm trying to compile some old C++ code I wrote for a programming course. When I say <BLOCKQUOTE>code:<HR><pre> cc program.cpp [/code] I always get this error message:

<BLOCKQUOTE>code:<HR><pre> /usr/bin/ld: Undefined symbols:
___ls__7ostreamPCc
___ls__7ostreamd
___rs__7istreamRd
_cin
_cout [/code]

Clearly, it doesn't like my use of cin and cout. I have the December 2001 Developer Tools with the latest update. Does anyone know why this is happening? Thank you very much.

wadesworld · Mar 14, 2002, 08:26 PM

Because you didn't include the proper library.

The easiest way to correct that is:

"c++ program.cpp"

Wade

beakerfreak · Mar 14, 2002, 08:32 PM

All right. As long as I have your attention, I have another question. After executing the aboce command, I get an a.out file in my home folder. It's essentially gibberish. If it's all compiled, how do I execute the program? Thanks for humoring me.

wadesworld · Mar 14, 2002, 08:36 PM

The current directory is not in your path. Do: "./a.out"

Wade

smeger · Mar 14, 2002, 08:37 PM

From the terminal, type ./a.out

This means, execute the program that has as its path "currentDirectory/a.out"

beakerfreak · Mar 14, 2002, 08:38 PM

You just made my night. Seriously.

This is why I love the Mac community.