On Wed, 5 Mar 2003 07:33:19 -0500 Kevin Coyner <[EMAIL PROTECTED]> wrote:
> > I'm learning C++ and ran into a bit of difficulty with boolalpha. > > I guess I don't have all the right libraries loaded (although I > would have thought this one was quite basic) because the following > doesn't work: > > cout.setf(ios_base::boolalpha); // from textbook > > The err msg I get is: > > `ios_base' undeclared (first use this function) > > So o.k., I see that there's been no declaration. So I looked > through my /usr/include and did some grepping for boolalpha, and > nothing is returned. Which must mean I'm missing a header file. > Could someone please give me a tip as to what header file I might be > missing, and even better, what package it might be in? AFAIK GCC 2.95 doesn't have the ios_base namespace , you'll have to use ios instead. however boolalpha is not implemented in 2.95, so you'll have install g++-3.2 (only in testing I believe). if you plan on learning C++ I recommend you use 3.2, it is more standard compliant and will give you more verbose warnings and errors. but please note that there is not binary compatibility between C++ code compiled using different versions of GCC so if you use GCC 3.2 you won't be able to link against C++ libraries provided by debian (like QT for instance). what I do is have the two versions installed, I use 2.95 for compiling any software I download and 3.2 for my own code. cheers, Alaa -- get my PGP/GPG signature at http://www.geocities.com/alaaov/pub_key.txt Perilous to all of us are the devices of an art deeper than we ourselves possess. -- Gandalf the Grey [J.R.R. Tolkien, "Lord of the Rings"]
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