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Mail Archives: cygwin/2000/11/08/11:39:05

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Date: Wed, 8 Nov 2000 11:03:50 -0500
From: Christopher Faylor <cgf AT redhat DOT com>
To: cygwin AT sources DOT redhat DOT com
Subject: Re: Bug report: gcc + cygwin
Message-ID: <20001108110350.H17097@redhat.com>
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References: <DD38D67B9196D31189EC00508B625637450C4A AT zro01exm01 DOT corp DOT mot DOT com>
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In-Reply-To: <DD38D67B9196D31189EC00508B625637450C4A@zro01exm01.corp.mot.com>; from Emilian.Medve@motorola.com on Wed, Nov 08, 2000 at 05:33:28PM +0200

On Wed, Nov 08, 2000 at 05:33:28PM +0200, Medve Emilian-EMMEDVE1 wrote:
>This is my program (it's also attached to this e-mail):
>
>#include<io.h>
>#include<stdio.h>
>#include<stdlib.h>
>
>int main(void)
>{
>        int n=0;
>
>        while(dup(1)!=-1)n++;
>        printf("Size of FILE0 table is: %d.\n",n+3);
>        exit(EXIT_SUCCESS);
>}
>
>Compilation command line: gcc -Wall -o dup dup.c
>
>And this is the output:
>
>d:\Profiles\emmedve1\LOCALS~1\Temp\dup.exe: *** couldn't commit memory for
>cygwi
>n heap, Win32 error 487

In other words, you tried to grow the fd table without bounds and
eventually cygwin ran out of memory.  You can't find the size of the
file table this way.  It's a terrible method for doing this.  Cygwin's
file table doesn't have an upper limit.

Well, I guess 2^32 is probably an upper limit.

>If I use -mno-cygwin everythig works as expected (fine).

Well then, problem solved.

cgf

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