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From: siping@cathedral.cerc.wvu.wvnet.edu (Siping Liu)
Newsgroups: comp.lang.c
Subject: ## question on memory allocation for char strings ##
Message-ID: <601@babcock.cerc.wvu.wvnet.edu>
Date: 28 Jun 90 17:49:18 GMT
Sender: news@cerc.wvu.wvnet.edu
Lines: 34

look at this example:
/**************************/
main()
{
  f1(f2());
}

f1(parm1)
char parm1[];
{
  printf("%s", parm1);
}

char *f2()
{
  char abc[100];

  strcpy(abc, "12345");

  return(abc);
}
/*******************************/

The question is: can I get the correct print out in function "f2"
as I have set in function "f1" ?? After the program returned from "f2",
memory space for "abc" was freed and may be used when calling "f1". So
even I get a correct print out, I still question if it's correct.

I have been told a lot of times that "strcpy" is always safe, but
I replace "f1" above by "strcpy", then how can I guarantee that it is safe?

Thanks in advance.

siping@cerc.wvu.wvnet.edu