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Message-ID: <41107F35.5020800@kleckner.net>
Date: Tue, 03 Aug 2004 23:16:21 -0700
From: Jim Kleckner <jek-cygwin AT kleckner DOT net>
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To: sailorleo AT isonews2 DOT com
CC: cygwin AT cygwin DOT com
Subject: Re: STL std::random_shuffle behavior fails with lrand48
References: <410AEF64 DOT 90409 AT kleckner DOT net> <410B038D DOT 5010507 AT isonews2 DOT com>
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Arturus Magi wrote:

> Jim Kleckner wrote:
> 
>> Version of cygwin is current (see attached file
>> for all version stamps)
>> gcc                     3.3.1-3
>> gcc-g++                 3.3.1-3
>>
>> version of gcc/g++ on Linux is 2.96.
>>
>> The test program is attached as is cygcheck output.
>>
>> To run it just type (note that -mno-cygwin is *not* used):
>> g++ xxx.cpp
>> ./a.exe
>>
>> Is this a configuration issue?  Or does lrand48 not work?
>> Or is it a long vs. int type mismatch?
>>
> 
> Try upgrading the version of gcc on the Linux box before comparing. 
> There are a number of differences between gcc2 and gcc3 that may be 
> affecting things.

This succeeds on an up to date Gentoo system.
So the problem appears to be local to cygwin.

=== From a gentoo user:

My gcc and g++ versions are 3.3.3 20040412.

[reid AT reid-ws reid]$ g++ xxx.cpp
[reid AT reid-ws reid]$ ./a.out

changes before:
0 1 2 3 4 5 6
changes after:
1 4 2 3 5 6 0
changes after:
0 6 2 1 4 5 3
changes after:
0 1 3 6 5 4 2

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