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Subject: Re: printf, "unable to initialize PRN" message
To: cygwin AT cygwin DOT com
References: <DM5PR1101MB21371B0CFCA62F9ED7B582AA81B60 AT DM5PR1101MB2137 DOT namprd11 DOT prod DOT outlook DOT com>
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Date: Wed, 11 Sep 2019 21:13:56 +0200
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Am 11.09.2019 um 02:03 schrieb Blair, Charles E III:
> I have  just installed cygwin (64 bit) and gcc.  The "hello world" program
> works, but
> 
> #include<stdio.h>
> int main(){printf( "%c\n" , 'X' );return 0;}
> 
> leads to
>  
> Unable to initialize device PRN
> Unable to initialize device PRN

I suspect you've just rediscovered ancient knowledge, which dates back
as far as MS-DOS 1.x:

	THOU SHALT NOT NAME THINGS "CON", "COM", "NUL" or "PRN"

Those names are reserved for DOS device drivers (similar to, but much
more pervasive, than Unix' /dev/printer' etc.)

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