On Thu, Apr 16, 2009 at 12:06 PM, Arthur Schwarz
<aschwarz1...@verizon.net> wrote:
>
>
>
> Suggested Messaging: Messaging seems redundant in indicating that function
> has been redifined twice. One of the messages should be removed. More to the
> point, I think the messaging may be erroneous - code fragment follows.
>
>
> g++-4 Diagnostic Messaging
>
> In file included from partition.cpp:66:
> irange.h: In function 'std::ostream& operator<<(std::ostream&,
> ciRange_2::sRange_2&)':
> irange.h:102: error: redefinition of 'std::ostream& operator<<(std::ostream&,
> ciRange_2::sRange_2&)'
> irange.h:102: error: 'std::ostream& operator<<(std::ostream&,
> ciRange_2::sRange_2&)' previously defined here
>
>
> ---- Code Fragment ----
> class ciRange_2 : public iRange_List { // <low, high>
> public:
> struct sRange_2 { double RLo; // Low range value
> double RHi; }; // High range value
>
> friend istream& operator>>(istream& stream, ciRange_2::sRange_2& Range);
> friend ostream& operator<<(ostream& stream, ciRange_2::sRange_2& Range);
> }; // class ciRange_2
>
> istream& operator>>(istream& stream, ciRange_2::sRange_2& Range);
>
> ostream& operator<<(ostream& stream, ciRange_2::sRange_2& Range) {
> stream << setw(9) << Range.RLo << " " << setw(9) << Range.RHi;
> }
Can you show code that reproduces the issue? My best guess is that a
header file is included twice, and lacks guards, hence the message is
correct: the function is being defined twice, from the same source
location.
-- James
