[Coin-discuss] exception specifications

[Matthew Galati]

Two more:

c:\cygwin\home\magala\COIN\Osi\include\OsiCuts.hpp(346) : warning C4267: 'return' : conversion from 'size_t' to 'int', possible loss of data
c:\cygwin\home\magala\COIN\Osi\include\OsiCuts.hpp(347) : warning C4267: 'return' : conversion from 'size_t' to 'int', possible loss of data




> -----Original Message-----
> From: coin-discuss-bounces at list.coin-or.org 
> [mailto:coin-discuss-bounces at list.coin-or.org] On Behalf Of 
> Matthew Galati
> Sent: Sunday, May 21, 2006 2:13 PM
> To: Discussions about open source software for Operations Research
> Subject: RE: [Coin-discuss] exception specifications
> 
> Other warnings that keep popping up in VS.net2003:
> 
> c:\cygwin\home\magala\COIN\Coin\include\CoinHelperFunctions.hp
> p(690) : warning C4267: 'argument' : conversion from 'size_t' 
> to 'int', possible loss of data
> 
> c:\cygwin\home\magala\COIN\Coin\include\CoinSort.hpp(404) : 
> warning C4267: 'initializing' : conversion from 'size_t' to 
> 'const int', possible loss of data
>         
> c:\cygwin\home\magala\COIN\Coin\include\CoinPackedVector.hpp(2
> 29) : see reference to function template instantiation 'void 
> CoinSort_3<int,int,double,CoinFirstLess_3<S,T,U>>(S *,S *,T 
> *,U *,const CoinCompare3 &)' being compiled
>         with
>         [
>             S=int,
>             T=int,
>             U=double,
>             CoinCompare3=CoinFirstLess_3<int,int,double>
>         ]
> 
>  Matt
> 
> 
> > -----Original Message-----
> > From: coin-discuss-bounces at list.coin-or.org
> > [mailto:coin-discuss-bounces at list.coin-or.org] On Behalf Of Laszlo 
> > Ladanyi
> > Sent: Sunday, March 05, 2006 3:05 PM
> > To: Discussions about open source software for Operations Research
> > Subject: Re: [Coin-discuss] exception specifications
> > 
> > Hi Matt,
> > 
> > I looked at the page Matt pointed to (and searched a bit elsewhere, 
> > too), and the reasons for NOT to have exception 
> specification in the 
> > code is fairly compelling. I propose to remove them all. 
> According to 
> > the docs I found this should not break the compilation of 
> any existing 
> > code relying on COIN code.
> > Could people verify this? If really nothing breaks and 
> noone comes up 
> > with other reasons for having the exception specifications 
> then I'll 
> > remove then at the end of March.
> > 
> > --Laci
> > 
> > On Sun, 5 Mar 2006, Matthew Galati wrote:
> > 
> > > Hi,
> > > 
> > > Is there a good reason to have an exception specification
> > in the prototypes? As I understand it, if you miss an exception 
> > specification, this can cause run-time errors that should otherwise 
> > work fine. Identifying exceptions (for the sake of the user) can 
> > simply be done with documentation (comments), rather than in the 
> > prototype.
> > > 
> > > This seems to be a debatable topic, but I somewhat agree
> > with the views on this webpage:
> > > http://www.codeproject.com/cpp/stdexceptionspec.asp
> > > 
> > > I don't feel strongly either way, but I do want to clean up
> > my VS.net builds (I get several hundred of these):
> > > 
> > c:\cygwin\home\magala\COIN\Coin\include\CoinPackedVectorBase.h
> > pp(66) : 
> > > warning C4290: C++ exception specification ignored except
> > to indicate
> > > a function is not __declspec(nothrow)
> > > 
> > c:\cygwin\home\magala\COIN\Coin\include\CoinPackedVectorBase.h
> > pp(74) : 
> > > warning C4290: C++ exception specification ignored except
> > to indicate
> > > a function is not __declspec(nothrow)
> > > 
> > > If we feel strongly that exception specifications are
> > necessary, can we at least add a pragma to turn off 
> compiler warnings?
> > > 
> > > Thanks,
> > > Matt
> > > 
> > > 
> > > Matthew Galati - Optimization Developer SAS Institute - 
> Analytical 
> > > Solutions Phone 919-531-0332, R5327
> > > Fax   919-677-4444
> > > http://coral.ie.lehigh.edu/~magh
> > > http://ordlnx2.na.sas.com/projects/OptWiki
> > > http://www.sas.com/technologies/analytics/optimization/
> > > 
> > > 
> > > 
> > > _______________________________________________
> > > Coin-discuss mailing list
> > > Coin-discuss at list.coin-or.org
> > > http://list.coin-or.org/mailman/listinfo/coin-discuss
> > > 
> > 
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> > 
> 
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