Re: [boost] Re: BPL: Easiest way to return a private vector<long> ?

From: David Abrahams (abrahams_at_[hidden])
Date: 2001-05-13 19:34:32

Thanks Ralf,

just FYI, std::size_t is an unsigned type; there's never a need to check
whether it's less than zero. On some compilers this will raise a warning.

Regards,
Dave
----- Original Message -----
From: <rwgk_at_[hidden]>
To: <boost_at_[hidden]>
Sent: Friday, May 04, 2001 9:12 PM
Subject: [boost] Re: BPL: Easiest way to return a private vector<long> ?

> The new version of simple_vector.cpp (CVS tree) checks the
> indices passed to __getitem__ etc., e.g.:
>
>   void raise_vector_IndexError() {
>     PyErr_SetString(PyExc_IndexError, "IndexError: vector index out
> of range");
>     throw python::error_already_set();
>   }
>
>   double getitem(const std::vector<double>& vd, std::size_t key) {
>     if (key < 0 || key >= vd.size()) raise_vector_IndexError();
>     return vd[key];
>   }
>
> This test now works as expected:
>     >>> v=simple_vector.vector_double((3,4,5))
>     >>> for e in v:
>     ...   print e
>     3.0
>     4.0
>     5.0
>
> Ralf
>
> --- In boost_at_y..., jk_at_s... wrote:
> > 4 May 2001 11:25:20 +0400 Jens Maurer wrote:
> > >>     return vd.at(key);
> > >>   }
> > >>
> > >> This compiles fine with VC60, Compaq cxx, Silicon Graphics CC,
> > >> but NOT with gcc-2.95.2 (RedHat 6.1):
> > >
> > >gcc 2.95.2 has an outdated library which does not support
> > >std::vector<>::at().
> >
> > It is library problem, the core compiler with STLport works fine
> (my $0.02).
> >
> > --
> > jk
>
>
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