The following code produces errors when compiled on MSVC6:
************* Start test.cpp ************************
#include <iostream>
#include "boost/functional.hpp"
struct Foo
{
int operator()(int x) const {return x+1;}
};
typedef class boost::const_mem_fun1_t FType;
int main()
{
Foo foo;
std::cout << foo(1) << "\n";
//This works
//std::cout << boost::bind2nd<FType>(boost::mem_fun(&Foo::operator ()),
7)(&foo) << "\n";
//This does not.
std::cout << boost::bind2nd(boost::mem_fun(&Foo::operator ()), 7)(&foo) <<
"\n";
return 0;
}
****************** end test.cpp *******************
The error is as follows:
--------------------Configuration: mem_fun_test - Win32
Debug--------------------
Compiling...
test.cpp
C:\Documents and Settings\waldbcar.WALDBCAR\My Documents\My
Projects\VC\test\mem_fun_test\test.cpp(20) : error C2782: 'class
boost::binder2nd<Operation> __cdecl boost::bind2nd(Operation &,const
Operation &)' : template parameter 'Operation' is ambig
uous
could be 'int'
or 'class boost::const_mem_fun1_t'
C:\Documents and Settings\waldbcar.WALDBCAR\My Documents\My
Projects\VC\test\mem_fun_test\test.cpp(20) : error C2782: 'class
boost::binder2nd<Operation> __cdecl boost::bind2nd(const Operation &,const
Operation &)' : template parameter 'Operation' is
ambiguous
could be 'int'
or 'class boost::const_mem_fun1_t'
Error executing cl.exe.
test.obj - 2 error(s), 0 warning(s)
I am just not seeing where the ambiguity is coming from. The commented out
line will actually compile and run as I expected, but I can't figure out why
the compiler can't deduce the template argument. Any ideas?
Thanks in Advance!
Carl Waldbieser
waldbie[at-sign-here]attglobal.net
