From: Ian Macdonald <ian@...>
Date: 2003-11-13T17:58:08+09:00
Subject: Re: problems with rb_str_split()

On Wed 12 Nov 2003 at 20:02:33 +0900, ts wrote:

> >>>>> "I" == Ian Macdonald <ian@caliban.org> writes:
> 
> I> This worked fine in Ruby 1.6.x, but in 1.8.x, it generates a warning in
> I> any code that invokes the method:
> 
>  Well, I don't have this problem with 1.8.1
> 
> nasun% cat aa.c 
> #include <ruby.h>
> 
> void Init_aa()
> {
>     VALUE res;
>     const char *comma_sp = ", ";
>     int i;
> 
>     res = rb_str_split(rb_str_new2("abc, def"), ", ");
>     for (i = 0; i < RARRAY(res)->len; i++) {
>         rb_warn("found %s", StringValuePtr(RARRAY(res)->ptr[i]));
>     }
> }
> nasun% 
> 
> nasun% ruby -raa -ve 1    
> ruby 1.8.1 (2003-10-31) [sparc-solaris2.8]
> ./aa.so: warning: found abc
> ./aa.so: warning: found def
> -e:1: warning: useless use of a literal in void context
> nasun% 

Try running it with warnings enabled (-w):

[ianmacd@jiskefet]$ ruby -raa -wve 1
ruby 1.8.0 (2003-08-04) [i686-linux-gnu]
./aa.so: warning: string pattern instead of regexp; metacharacters no longer effective
./aa.so: warning: found abc
./aa.so: warning: found def
-e:1: warning: useless use of a literal in void context

So, how do I get rid of the "string pattern instead of regexp" warning?

Ian
-- 
Ian Macdonald               | A is for Apple.   -- Hester Pryne 
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