From: Francis Cianfrocca <garbagecat10@...>
Date: 2007-05-01T16:19:12+09:00
Subject: Re: sprintf can not work in ruby c source?

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On 5/1/07, Haoqi Haoqi <axgle@126.com> wrote:
>
> here is my simple test:
> where is my mistake??
>
> #include "ruby.h"
> #include "stdio.h"
> static VALUE
> tests(){
>    char *s1="a ";
>     char *s2=" b";
>   char *buf;
>     sprintf(buf,"%s after %s",s1,s2);
>     printf(buf);
>   return Qnil;
> }
> void Init_hello(){
> rb_define_global_function("tests",tests,0);
> }



Um, you realize you're writing right into a random memory location? If
you're not an experienced C programmer, you may want to reconsider your
project to write a Ruby extension.

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