$Header$

This directory contains a set of "hello, world" programs to test how
the C++ namespaces are handled for standard library functions.

Each .cc file is a "hello, world\n" program using a particular set of
options for what header file to #include, what (if any) using declarations
or definitions to use, and whether or not to use an explicit std::
qualifier when calling printf().

According to standard C++, #include <cstdio> puts names *only* in the
std:: namespace, so the cstdio-global.cc program should fail to compile.
All the other programs should be legal in standard C++.

					what to		what namespace		how we call	status
					#include?	are we using		printf()?	in
							printf() in?				standard
								using?				C++

stdio_h-global.cc			<stdio.h>	global	--		printf()	ok
stdio_h-std:std-printf.cc		<stdio.h>	std	--		std::printf()	ok
stdio_h-std:using-std-printf.cc		<stdio.h>	std	std::printf;	printf()	ok
stdio_h-std:using-namespace-std.cc	<stdio.h>	std	namespace std;	printf()	ok

cstdio-global.cc			<cstdio>	global	--		printf()	WRONG
cstdio-std:std-printf.cc		<cstdio>	std	--		std::printf()	ok
cstdio-std:using-std-printf.cc		<cstdio>	std	std::printf;	printf()	ok
cstdio-std:using-namespace-std.cc	<cstdio>	std	namespace std;	printf()	ok