Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm
List-Subscribe: <mailto:cygwin-subscribe AT cygwin DOT com>
List-Archive: <http://sources.redhat.com/ml/cygwin/>
List-Post: <mailto:cygwin AT cygwin DOT com>
List-Help: <mailto:cygwin-help AT cygwin DOT com>, <http://sources.redhat.com/ml/#faqs>
Sender: cygwin-owner AT cygwin DOT com
Mail-Followup-To: cygwin AT cygwin DOT com
Delivered-To: mailing list cygwin AT cygwin DOT com
Message-Id: <5.1.1.6.0.20021129094805.00a1f6a0@mail.ozemail.com.au>
X-Sender: wdale AT mail DOT ozemail DOT com DOT au
Date: Fri, 29 Nov 2002 09:48:37 +1100
To: cygwin AT cygwin DOT com
From: Warren Dale <wdale AT ozemail DOT com DOT au>
Subject: Using -mno-cygwin
Mime-Version: 1.0
Content-Type: text/plain; charset="us-ascii"; format=flowed

I am a happy Cygwin user.
I am trying to convert a program so that it will be Cygwin independent.
I have struck two problems:

----------

(1) The program compiles and links clean, but is unable to use printf() to 
display a "long long" variable.
$ cat test1.c
#include <stdio.h>

int main(void)
{
         long long number = 123456789012;

         printf("%lld\n", number);
         return(0);
}

$ gcc -Wall -Wshadow test1.c -s -o test1
$ ./test1
123456789012
$ gcc -Wall -Wshadow -mno-cygwin test1.c -s -o test1
$ ./test1
-1097262572
$

QUESTION 1: Should "long long" be fully supported in mingw32?
         It seems that the compiler and the library do not agree.

----------

(2) A program using snprintf() compiles clean, but cannot link.
$ cat test2.c
#include <stdio.h>

int main(void)
{
         char buffer[20];
         long number = 12345678;

         snprintf(buffer, sizeof(buffer), "%lld\n", number);
         return(0);
}
$ gcc -Wall -Wshadow test2.c -s -o test2
{no errors}
$ gcc -Wall -Wshadow -mno-cygwin test2.c -s -o test2
/cygdrive/c/WINDOWS/TEMP/ccaayW3m.o(.text+0x2a):test2.c: undefined 
reference to `snprintf'
collect2: ld returned 1 exit status
$

QUESTION 2: Should "snprintf()" be fully supported in mingw32?
         It seems that the compiler and the library do not agree.

----------

In both cases I can code around the limitations if I have to.

Regards,
Warren.


Warren Dale
Email: wdale AT ozemail DOT com DOT au
Mobile: 0412-700-966
Home: (02) 9482-8552



--
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple
Bug reporting:         http://cygwin.com/bugs.html
Documentation:         http://cygwin.com/docs.html
FAQ:                   http://cygwin.com/faq/