From: Randy Merkel <Randy-Merkel AT postoffice DOT worldnet DOT att DOT net>
Newsgroups: comp.os.msdos.djgpp
Subject: ambiguous template instantiation for basic_string
Date: Mon, 30 Dec 1996 10:11:16 -0800
Organization: Clover Software
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CC: randy_merkel AT compuserve DOT com
To: djgpp AT delorie DOT com
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Howdy One and All;

I posted a message about this problem a week or so ago, but what with
the
holidays and all I think I missed any replys. So I'll try again! ;)

I'm getting "ambiguous template instantiation" errors for basic_string's 
synthisied operators, i.e., !=, >, <=, and so on.  My program follows
(From the "STL Tutorial and Reference Guide, Musser and Saini":


// Demonstrating an STL map.

#include <cstdlib>
#ifdef	__GNUC__
#	include <iostream.h>
#else
#	include <iostream>
#endif
#include <map>
#include <string>

int main()
{
    map<string, long, less<string> > directory;
    directory["Bogart"] = 1234567;
    directory["Bacall"] = 9876543;
    directory["Cagney"] = 3459876;
    // etc.

    // Read some names and look up their numbers.
    string name;
    while (cin >> name) 
        if (directory.find(name) != directory.end()) 
            cout << "The phone number for " << name
                << " is " << directory[name] << "\n";
        else
            cout << "Sorry, no listing for " << name << "\n";

    return EXIT_SUCCESS;
}

Here is my command line and error messages:

D:\Usr\Randy\Programming\STL\book\Examples\ex02_02>gxx -O
-fhandle-exceptions *.cpp
In file included from d:/djgpp/lang/cxx/std/bastring.h:571,
                 from d:/djgpp/lang/cxx/std/string.h:6,
                 from d:/djgpp/lang/cxx/string:5,
                 from Ex02-02.cpp:10:
d:/djgpp/lang/cxx/std/sinst.h:60: ambiguous template instantiation for
`operator !=(const char *, const
basic_string<char,string_char_traits<char> > &)' requested
d:/djgpp/lang/cxx/std/sinst.h:60: ambiguous template instantiation for
`operator !=(const basic_string<char,string_char_traits<char> > &, const
char *)' requested
d:/djgpp/lang/cxx/std/sinst.h:62: ambiguous template instantiation for
`operator >(const char *, const
basic_string<char,string_char_traits<char> > &)' requested
d:/djgpp/lang/cxx/std/sinst.h:62: ambiguous template instantiation for
`operator >(const basic_string<char,string_char_traits<char> > &, const
char *)' requested
d:/djgpp/lang/cxx/std/sinst.h:63: ambiguous template instantiation for
`operator <=(const char *, const
basic_string<char,string_char_traits<char> > &)' requested
d:/djgpp/lang/cxx/std/sinst.h:63: ambiguous template instantiation for
`operator <=(const basic_string<char,string_char_traits<char> > &, const
char *)' requested
d:/djgpp/lang/cxx/std/sinst.h:64: ambiguous template instantiation for
`operator >=(const char *, const
basic_string<char,string_char_traits<char> > &)' requested
d:/djgpp/lang/cxx/std/sinst.h:64: ambiguous template instantiation for
`operator >=(const basic_string<char,string_char_traits<char> > &, const
char *)' requested
d:/djgpp/lang/cxx/tree.h: In method `void
rb_tree<basic_string<char,string_char_traits<char> >,pair<const
basic_string<char,string_char_traits<char> >,long
int>,select1st<pair<const basic_string<char,string_char_traits<char>
>,long int>,basic_string<char,string_char_traits<char> > >,less<basic_string<char,string_char_traits<char> > > >::erase_hack(struct b_tree_iterator<basic_string<char,string_c
har_traits<char> >,pair<const basic_string<char,string_char_traits<char>
>,long
int>,select1st<pair<const basic_string<char,string_char_traits<char>
>,long int>
,basic_string<char,string_char_traits<char> >
>,less<basic_string<char,string_ch
ar_traits<char> > > >)':
d:/djgpp/lang/cxx/tree.h:954: virtual memory exhausted

Thanks in advance for the help!


-- Randy

====================================================================
Randy Merkel o-
NAR #65722 SR
rmerkel AT ACM DOT org