Programming

ok...
Take a look at the snippets below.
What does it mean a construct like:
void function()
type var;
{
funct code...
}

hmmm.. i dont get it. my compiler either.


void log_message(filename,message)
char *filename;
char *message;
{
FILE *logfile;
logfile=fopen(filename,"a");
if(!logfile) return;
fprintf(logfile,"%s\n",message);
fclose(logfile);
}

void signal_handler(sig)
int sig;
{
switch(sig) {
case SIGHUP:
log_message(LOG_FILE,"hangup signal catched");
break;
case SIGTERM:
log_message(LOG_FILE,"terminate signal catched");
exit(0);
break;
}
}

sorry guys my "c" compiler gots it, i was too quick asking, i tried compile on C++ compiler.

But anyway i've never seen sth. like that, help me quick?

Code tags for code please. They make them readable as opposed to, not.

This is an old, depreciated method of declaring functions. Like, really old -- I only see it in code from the 80's. This snippet is equivalent to:

Code:

void function(type var)
{
  funct code...
}

I'll translate the rest:

Code:

void log_message(char *filename, char *message)
{
  FILE *logfile;
  logfile=fopen(filename,"a");
  if(!logfile) return;
  fprintf(logfile,"%s\n",message);
  fclose(logfile);
}

void signal_handler(int sig)
{
  switch(sig) {
  case SIGHUP:
    log_message(LOG_FILE,"hangup signal catched");
    break;
  case SIGTERM:
    log_message(LOG_FILE,"terminate signal catched");
    exit(0);
    break;
  }
}

Your code is Kernighan & Ritchie (K&R) dialect of C.
Now we are using Ansi C.
Conversion between them is possible with protoize/unprotoize.

Actually, the C compiler that comes with HP-UX allows only this method.

Writing this:

Code:

void do_fsmon(fsnode *curnode)

produces a clear error saying that ANSI C type declarations are not supported (or some such - don't have access to HP C right now).

Due to this, I end up writing all my functions like this:

Code:

void do_fsmon(curnode)
fsnode* curnode;

Thanks a lot folks. I mean i assumed it to be like this. But i can assume everything. now i know it. Thank you!
K&R cool.
Poor HP-UX developers, but you get used to nearly everything.