Temporary file with streams

[Jennifer Mauritz]

Hello,

i want to build a UNIX-pipe-like file for temporary use with the C++
streams. First I want to write some data into, then read all that data out.
My attempt was this:

#include <iostream>
using namespace std;
int main()
{
char *buff = (char*) malloc(8096);
streambuf strbuf(buff, 8096);
istream istr(buff);
ostream ostr(istr.rdbuf());
istr << "HALLO Welt";
cout << ostr;
free(buff);
return 0;
}

Although the Visual C++ documentation states the constructor
streambuf( char* pr, int nLength );

the compiler responds, no function takes two parameters.

Has somebody an idea?

Thanks

Jenni

[Charlie]

"Jennifer Mauritz" <pr*****@is.very.important.respect.it> wrote in message
news:cn**********@beech.fernuni-hagen.de...

Hello,

i want to build a UNIX-pipe-like file for temporary use with the C++
streams. First I want to write some data into, then read all that data
out.
My attempt was this:

#include <iostream>
using namespace std;
int main()
{
char *buff = (char*) malloc(8096);
streambuf strbuf(buff, 8096);
istream istr(buff);
ostream ostr(istr.rdbuf());
istr << "HALLO Welt";
cout << ostr;
free(buff);
return 0;
}

Although the Visual C++ documentation states the constructor
streambuf( char* pr, int nLength );

the compiler responds, no function takes two parameters.

Has somebody an idea?

Thanks

Jenni

That constructor is in the <iostream.h>
#include <iostream.h>
int main()

[Rob Williscroft]

Jennifer Mauritz wrote in news:cn**********@beech.fernuni-hagen.de in
comp.lang.c++:

Hello,

i want to build a UNIX-pipe-like file for temporary use with the C++
streams. First I want to write some data into, then read all that data
out. My attempt was this:

#include <iostream>
using namespace std;
int main()
{
char *buff = (char*) malloc(8096);
streambuf strbuf(buff, 8096);

std::streambuf aka std::basic_streambuf< char > only has a default
constructor and it is protected.

#include <iostream>
#include <sstream>

int main()
{
std::ostringstream ss;

ss << "hello world";

std::cout << ss.str() << '\n';
}

Rob.
--
http://www.victim-prime.dsl.pipex.com/

[Jennifer Mauritz]

"Rob Williscroft" <rt*@freenet.co.uk> schrieb im Newsbeitrag
news:Xn**********************************@130.133. 1.4...

std::streambuf aka std::basic_streambuf< char > only has a default
constructor and it is protected.

#include <iostream>
#include <sstream>

int main()
{
std::ostringstream ss;

ss << "hello world";

std::cout << ss.str() << '\n';
}

Excellent!
Exactly what I looked for. And so easy...

Jenny