Writeability of strings

[Rich Salz]

Simple question.  Which is legal and/or "safer":

	char *foo = "/tmp/xxxxxx";
	(void)mktemp(foo);

	char *foo = mktemp("/tmp/xxxxxx");

	char foo[] = "/tmp/xxxxxx";
	(void)mktemp(foo);

	#define TEMPNAME "/tmp/xxxxxx";
	char foo[sizeof TEMPNAME];
	(void)mktemp(strcpy(foo, TEMPNAME));

Thanks!
	/rich $alz
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