Boost C++ Libraries: Ticket #2024: boost::format("%p") % (uint8_t *) str is not like printf("%p", str)

attachment set

Thu, 19 Jun 2008 15:25:20 GMT

attachment → format_printf.cc

Marshall Clow — Sun, 28 Mar 2010 02:47:35 GMT

This still a problem in 1.42:

#include <iostream>
#include <boost/format.hpp>
#include <cstdlib>
int main ( int argc, char *argv[] ) {
	const char *foo = "Hi Mom!";
	std::cout << str ( boost::format ( "%p" ) % foo ) << std::endl;
	printf ( "%p\n", foo );
	return 0;
	}

prints two different lines.

status changed; resolution set

Marshall Clow — Mon, 14 Jun 2010 01:05:17 GMT

status new → closed
resolution → wontfix

My copy of the C99 standard (n869) says about "%p":

p The argument shall be a pointer to void. The value of the pointer is converted to a sequence of printing characters, in an implementation-defined manner.

Given that, I don't see any way that Boost.Format can "match what printf prints".