How to compile this file?

[sedawk]

Hi,

I have a short file needs to compile with g++. After compilation it shows "segamentation fault". I think something wrong with my compiling options.

Here is the file:

#include <curses.h>

main()
{
int ret;
ret = beep();
}
// end file

Here is the compiler commmand line:
g++ -lncurses -o filename filename.c

After compilation, output &quot;segametation fault&quot;. What is wrong?

 

[gasingh]

This is because you cannot call any of the function calls from Curses library before initializing.
Call initscr() before calling any of the Curses functions.

Hope this helps.

 

[sedawk]

Thanks, it works now.

However, I couldn't control beeping frequencies and duration. How can I do that?