[EMAIL PROTECTED] wrote:
> I was trying to write a short program, which used
> sqrt function. Unfortunately, I ran into some
> problems.
>
> Simple program like this:
>
> #include <stdio.h>
> #include <math.h>
>
> int main()
> {
> double i=16.0;
>
> printf("%lf", sqrt(i));
>
> return 0;
> }
>
> Does not compile correctly:
>
> /tmp/cca157861.o: In function `main':
> /tmp/cca157861.o(.text+0x1b): undefined reference to `sqrt'
>
> I recall getting similar messages when I tried to
> compile curses program without '-lncurses'. But
> AFAIK, there is no library needed for math.h
> functions, correct?
Incorrect. You need to link with libm (add -lm to the link command).
--
Glynn Clements <[EMAIL PROTECTED]>
