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Problem with namespaces


 
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Operating Systems AIX Problem with namespaces
# 1  
Question Problem with namespaces

Hello all,

I am having a problem with the following program on AIX:-

// Namespace.cxx
#include <iostream>
using namespace std;
#include <iostream.h>
int main()
{
// cout<<"Hello world";
return 0;
}

On compilation:-
$ xlC Namespace.cxx
"/usr/vacpp/include/iostream.h", line 114.38: 1540-0063 (S) The text "*" is unexpected.
"/usr/vacpp/include/iostream.h", line 300.25: 1540-0040 (S) The text "seekoff" is unexpected. "streampos" may be undeclared or ambiguous.
"/usr/vacpp/include/iostream.h", line 443.32: 1540-0600 (S) The reference to "ios" is ambiguous.
"/usr/vacpp/include/iostream.h", line 78.7: 1540-0425 (I) "ios" is defined on line 78 of "/usr/vacpp/include/iostream.h".
"/usr/vacpp/include/iosfwd", line 330.45: 1540-0425 (I) "std::ios" is defined on line 330 of "/usr/vacpp/include/iosfwd".

Can anyone explain the reason for these strange looking errors? Please try out the different combinations of first 3 lines of the program and commenting and un-commenting the cout line in the main().

Regards,
Gupta

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Template::Namespace::Constants(3)			User Contributed Perl Documentation			 Template::Namespace::Constants(3)

NAME
Template::Namespace::Constants - Compile time constant folding SYNOPSIS
# easy way to define constants use Template; my $tt = Template->new({ CONSTANTS => { pi => 3.14, e => 2.718, }, }); # nitty-gritty, hands-dirty way use Template::Namespace::Constants; my $tt = Template->new({ NAMESPACE => { constants => Template::Namespace::Constants->new({ pi => 3.14, e => 2.718, }, }, }); DESCRIPTION
The "Template::Namespace::Constants" module implements a namespace handler which is plugged into the "Template::Directive" compiler module. This then performs compile time constant folding of variables in a particular namespace. METHODS
new(\%constants) The new() constructor method creates and returns a reference to a new Template::Namespace::Constants object. This creates an internal stash to store the constant variable definitions passed as arguments. my $handler = Template::Namespace::Constants->new({ pi => 3.14, e => 2.718, }); ident(@ident) Method called to resolve a variable identifier into a compiled form. In this case, the method fetches the corresponding constant value from its internal stash and returns it. AUTHOR
Andy Wardley <abw@wardley.org> <http://wardley.org/> COPYRIGHT
Copyright (C) 1996-2007 Andy Wardley. All Rights Reserved. This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself. SEE ALSO
Template::Directive perl v5.16.3 2011-12-20 Template::Namespace::Constants(3)

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