Re: [gawk] type conversion error ascii (hex) to integer

[Stepan Kasal]

Hello,

On Tue, Aug 16, 2005 at 07:59:06AM -0700, Lee Howard wrote:
> >awk 'BEGIN { printf(strtonum("0xff")) "\n" };'
...
> Unfortunately, neither --non-decimal-data nor strtonum are portable.

Sure, there is no portable solution.  It was shere good luck if your
solution worked on more platforms.  POSIX prohibits hexadecimal numbers
even in program code.

But strtonum can be implemented as a user function; actually, it comes
as an example with gawk.  It's installed as /usr/share/awk/strtonum.awk
on my GNU/Linux system.


BTW, int() is truncation, like trunc() or floor() in C.  (POSIX doesn't
specify which one of them.)  It would have been more awkish to write:
        awk 'BEGIN { printf("0xff" + 0) "\n" };'

Have a nice day,
        Stepan Kasal