From mboxrd@z Thu Jan  1 00:00:00 1970
From: "Daniel." <danielhilst@gmail.com>
Subject: How to check if char pointer is a constant!?
Date: Thu, 7 Jul 2016 16:40:56 -0300
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To: "linux-c-programming@vger.kernel.org" <linux-c-programming@vger.kernel.org>

Hi everybody,

I have some function, say
void empty(char *p) { p[0] = '\0'; }

If I call it like this empty("Hello") it will segfaults since "Hello"
is put in readonly section of the program. Is there a way to check for
this?! Maybe some nasty gcc extension!?

Regards,

-- 
"Do or do not. There is no try"
  Yoda Master