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Date: Thu, 28 Jul 2011 20:25:44 -0400
From: pete <pfiland@mindspring.com>
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Subject: Re: is there anything unstandard in the c part here
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Xref: x330-a1.tempe.blueboxinc.net comp.lang.c:8850

Ben Bacarisse wrote:

> If you have a utility function:
> 
>   void *malloc_or_bust(size_t sz)
>   {
>       void *p = malloc(sz);
>       if (p == NULL) {
>           fprintf(stderr, "malloc failed.\n");
>           exit(EXIT_FAILURE);
>       }
>       return p;
>   }
> 
> then you can simply write
> 
>   char *testc(void)
>   {
>       return strcpy(malloc_or_bust(50),
>                     "this sentence is less than fifty bytes.");
>   }

If malloc_or_bust(50) returns a null pointer within testc,
then you have undefined behavior in the strcpy call;
and then maybe testc will return a null pointer
or maybe it will return "this sentence is less than fifty bytes."
or maybe something else will happen.

-- 
pete