Iostream

[ncstate]

it seems when i try to compile this simple code I get an error message i
believe is from g++ not finding the IOSTREAM header file. i found the
header file in /usr/include/c++/3.2.2/ so that is why it is included
like that. suggestions?

I'm running red hat 9

code :

#include </usr/include/c++/3.2.2/iostream>

int main()

{

cout << endl << endl << "Jeff" << endl;

cout << "E115 Sec 010 B" << endl;

cout << "Hello World" << endl << endl << endl;

return 0;

}

errors:

project2.C: In function `int main()':

project2.C:6: `cout' undeclared (first use this function)

project2.C:6: (Each undeclared identifier is reported only once for each

function it appears
--
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[Mike Wahler]

"ncstate" <me*********@db forums.com> wrote in message
news:35******** ********@dbforu ms.com...

Thanks for the help. the only thing that i seemed to find that worked
was to #include <iostream.h> and it gives me a depreciation message but
compiles and runs fine. is this normal for g++ 3.2.2?? it compiles fine
with #include <iostream> with g++ 2.8.1? should i just keep using the .h
extention and ignore the message?

No.

#include <iostream>

int main()
{
std::cout << "Hello\n";
return 0;
}

-Mike

[David Rubin]

Mike Wahler wrote:
[snip]

I found this
diagnostic a bit confusing too the first time I saw it.
"'cout' undeclared." Exactly the case. How much more specific
could it be? :-)

Before you say e.g. "well the compiler should 'know' it's a
'namespace std' issue, I'll say that no, it cannot (and should not)
make such an assumption.

I wasn't suggesting that.
OP's problem is not an 'ambiguous' error message, but insufficient
background knowledge before using the compiler.

This is more like it. After years of not using std::, I am sometimes
bewildered when the compiler can't find declarations I know
exist...somewhe re.

/david

--
"As a scientist, Throckmorton knew that if he were ever to break wind in
the echo chamber, he would never hear the end of it."

[ncstate]

Thanks for all the help.. Sorry I didn't catch on before. All of the
posts were helpful and appriciated.

Jeff
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[MPBroida]

Mike Wahler wrote:

"MPBroida" <michael.p.broi da@boeing_oops. com> wrote in message
news:3F9858AB.2 DF20187@boeing_ oops.com...

ncstate wrote:

it seems when i try to compile this simple code I get an error message i
believe is from g++ not finding the IOSTREAM header file. i found the
header file in /usr/include/c++/3.2.2/ so that is why it is included
like that. suggestions?

I'm running red hat 9

code :

#include </usr/include/c++/3.2.2/iostream>

It's been a little while, but I seem to recall that
including a file from the "builtin" include dirs is
done via:
#include <filename>
That tells the compiler to use its own include path(s).

But including a USER file is done via:
#include "filename"
That tells the compiler to use the include paths from
the compile commandline (or defaults)(or project/etc).

Try changing the < and > to " and " and see what
happens.

Please check your facts before making such suggestions.

Just looked in my "fact sack" and all looks
well. What facts are you unhappy with?

Mike