C to Fortran and vice versa

Hi enud,

I assume that the values which need to be transferred are produced/read from stdout and stdin ...

now to transfer the values,

pipe()
pipe()
fork()

//in child close read end of pipe1 and write and of pipe2
//in parent close write end of pipe1 and read end of pipe2
//usual close and dups()
exec the fortran program in the child

Cheers!
Sunny:o)

example with explanation here
http://www.cs.cf.ac.uk/Dave/C/node23.html

thanks for the answer sunnycoder.please give me sometime to check this out!

to sunnycoder:

hello again,

Well unfortunately i forgot to mention that the program is ment to be for windows platform.so if it isn't a problem please give me a more detailed example for a unix platform.I found that with some specific commands from multithreading and functions like createpipe(), i can emulate(if this is the right word:p) some of the function of the unix world such as fork() and pipe() but i can't follow the example you gave me.you assumed right that the values which need to be transferred are produced/read from stdout and stdin.So what i would like is one program in fortran that the output (just some numbers) are the input of a program made in C.

PS : of course if you can program it directly for windows platform you are my god!

C101 :
http:/Q_20817471.html

enud:
In Windows, the CreateProcess function enables the parent process to create an operating environment for a new process. The environment includes the working directory, window attributes, environment variables, execution priority and command line arguments. A handle is returned by the CreateProcess function, which enables the parent application to perform operations on the process and its environment while it is executing. Unlike UNIX, the executable file run by CreateProcess is not a copy of the parent process, and it has to be explicitly specified in the call to CreateProcess.

An alternative to CreateProcess is to use one of the spawn functions that is present in the standard C runtime.

Windows example: low-level pipe call
#include <windows.h>
#include <stdlib.h>
#include <stdio.h>
#include <io.h>
#include <fcntl.h>
#include <process.h>

void main()
{
    size_t data_out, data_in;
    int file_pipes[2];
    const char data[] = "ABCDE";
    char buffer[BUFSIZ + 1];

    memset(buffer, '\0', sizeof(buffer));

    if (_pipe(file_pipes, 32, O_BINARY) == 0) {
        data_out = write(file_pipes[1], data, strlen(data));
        printf("Wrote %d bytes\n", data_out);
        data_in = read(file_pipes[0], buffer, BUFSIZ);
        printf("Read %d bytes: %s\n", data_in, buffer);
        exit(EXIT_SUCCESS);
    }
    exit(EXIT_FAILURE);
}


http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnucmg/html/UCMGch09.asp

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/ipc/base/using_pipes.asp
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vcsample98/html/vcsmpipcsample.asp

I understand the stuff with C++ and how i can create a server and a client application and how by using pipes,take the output from the one process as input to the other.what i still don't understand is how i can create two programs,from which one of them is writen in C and the other in fortran and still make them communicate with each other.Which should be the server and which the client.should i create a function in fortran (say func1()) which i'll call using pipes from the program made in C?