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Subject: Re: gcc3.0.1

Author: Steffen Jakob

Date: 08:07:46 10/07/01

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On October 07, 2001 at 09:01:05, Frank Phillips wrote:

>Thanks.  It seems the C++ parts of the compiler package are not installed
>automatically, since installing them makes gcc-3.0.1 the default.

Yes, you have to enable other languages explicitly:

./configure --enable-languages=c,c++

>Sadly, having installed it, it seems gcc3.0.1 produces a slightly slower
>(4percent) executable of my program than gcc2.96. The gcc executable (under
>Linux) is only 70 percent as fast as that produced by VC++, so I was hoping for
>improvement.
>
>gcc3.0.1 also gets upset about the nocreate in
>file.open(filename,ios::in | ios::nocreate);
>not being a member of std:basic_ios

Valid members of std::ios_base::openmode, which is the type of the 2nd parameter
of std::ifstream, are std::ios_base::app, std::ios_base::ate,
std::ios_base::binary, std::ios_base::in, std::ios_base::out,
std::ios_base::trunc. So nocreate isnt part of the standard.

Greetings,
Steffen.



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