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Date: Tue, 31 Jan 2012 13:17:20 -0500
From: pete <pfiland@mindspring.com>
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Subject: Re: trigraphs, yecch
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Xref: x330-a1.tempe.blueboxinc.net comp.lang.c:16521

Richard Harter wrote:
 
> That doesn't seem right to me, but what do I know.  As I read that
> there are two strings there, to wit "(??" and "?).%s.%s".  Are you
> telling me that two adjacent strings will be merged into one string.
> If that's so I'm certainly surprised and I've learned something quite
> unexpected.  Does this mean I can write  printf("x""y") and I will get
> "xy" as an output?

/*
** You can also use this feature
** to place the value of a macro inside a string.
*/
#include <stdio.h>

#define macro_value         the value of a macro
#define str(s)              # s
#define xstr(s)             str(s)

int 
main(void) 
{    
    puts(
        "You can also use this feature\nto place "
        xstr(macro_value)
        " inside a string."
        );
    return 0;
}

-- 
pete