> This is my first attempt at using libpq, and I'm running
> across a strange
> problem. Here is my bare-bones program:
>
> #include <stdio.h>
> #include "libpq-fe.h"
>
> int main(int argc, char **argv) {
> PGconn *conn;
> fprintf(stderr, "connecting\n");
> conn = PQconnectdb("dbname=postgres");
> PQfinish(conn);
> return 0;
> }
>
> I expected this program to print "connecting",
> but in fact I get no output
> whatsoever. If I comment out the PQconnectdb and PQfinish
> lines, I see
> "connecting" as expected. What could be going on
> here?
>
> A few notes:
> - I'm running PostgreSQL 8.3.6 on Windows XP. I used
> the one-click installer
> to install.
> - I'm compiling the program with MinGW. I get no
> compiler warnings or errors.
> - I can connect to the database just fine using both
> pgAdmin and the
> command-line client. The database is running on
> localhost.
> - I've tried adding code to see if PQstatus(conn) ==
> CONNECTION_OK, but this
> hasn't been useful. Since fprintf() isn't
> working, I can't display a message
> showing the result of the comparison.
> - I've tried various combinations of connection
> options in case there was an
> issue with the hostname, database name, username, or
> password. I always get
> the same result: no output.
> - I've tried printing to stdout and to a file, but
> neither helped.
>
> Thanks for any help you can provide.
> Joey
try
fprintf(stdout,"Connection \n");
printf("Connection \n");