Re: Need for const in function argument list

[Shriramana Sharma <samjnaa@gmail.com>]

Sunday, 26 March 2006 16:27 samaye, Steve Graegert alekhiit:

> Because the format (the string to display) is provided as a constant
> expression and it is not being modified:
> 	printf("%s\n", "abc");
> 	printf("%s\n", mystring);
> In both cases the format argument is a constant string.

Why, the following works as well:

#include "stdio.h"
void main(void)
{
	char s[10] = "\n%s\n\n";
	printf(s, "hello");
}

Here s is not a const char *. It is a variable char *. That actually compiled 
and executed. So probably it's only because the printf *function* does not 
change the value (and *should* not change the value during parsing, I 
presume).

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