I give you a simplified example to explain what I would like to do.
I have the following code, which I cannot modify (hello.cpp):
|#include <iostream>
#include <fstream>
using namespace std;
int main( int argc, char *argv[] )
{
string line;
ifstream f( argv[1] );
while(!f.eof())
{
getline(f, line);
cout << line << endl;
}
return 0;
}
Launch example:
||caneta@host ~ $ ./hello myfile.txt
1 - This is
2 - a test
3 - file.
I have a wrapper program which I need to modify:
||#include
#include
#include
#include <iostream>
#include <fstream>
#include <sstream>
using namespace std;
int main ()
{
int ret;
ret = execl ("./hello", "./hello", "myfile.txt", (char *)0);
return 0;
}|
In this way it works perfectly...but how can I modify it in order to use
a stream or a string inside the wrapper program, instead of using a file
name?
I would like to have something like:
|#include
#include
#include
#include <iostream>
#include <fstream>
#include <sstream>
using namespace std;
int main ()
{
int ret;
ifstream inputFile;
inputFile << "1 - This is" << endl;
inputFile << "2 - a test" << endl;
inputFile << "3 - file." << endl;
ret = execl ("./hello", "./hello", inputFile, (char *)0);
return 0;
}|
This last example, of course, doesn't work...how can I modify it in
order to make it work?
Remember that I cannot modify hello.cpp...
Can the Boost.iostreams help me?
Thanks in advance.
--
Alessandro Candini
MEEO S.r.l.
Via Saragat 9
I-44122 Ferrara, Italy
Tel: +39 0532 1861501
Fax: +39 0532 1861637
http://www.meeo.it
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