transform error in g++

[jwwicks]

Hello All,

I'm getting an error in g++ when I try and compile a cpp file using transform...

Here's the error...

customer.cpp:42 9: error: no matching function for call to transform(__gnu _cxx::__normal_ iterator<char*, std::basic_stri ng<char, std::char_trait s<char>, std::allocator< char> > >, __gnu_cxx::__no rmal_iterator<c har*, std::basic_stri ng<char, std::char_trait s<char>, std::allocator< char> > >, __gnu_cxx::__no rmal_iterator<c har*, std::basic_stri ng<char, std::char_trait s<char>, std::allocator< char> > >, <unresolved overloaded function type>)

The code in question is the following. #include <algorithm> is present and the code compiles no problem under Visual Studio. I know strictly speaking strings aren't containers but shouldn't this work or do you have to do something different for g++. Did MS include an overload that isn't in g++ ??

void gen_id( customer& c )
{
	string temp;
	
	temp = c.last_name;
	temp += c.first_name.at(0);
	transform( temp.begin(), temp.end(), temp.begin(), toupper);

	temp += c.date->get( YEAR );
	c.account = temp;
}

Here's a comment on the problem though I can't get to the FAQ mentioned...

g++ Thread on bug
John

[weaknessforcats]

transform( temp.begin(), temp.end(), temp.begin(), toupper);

This code should work OK.

transform has two overloads. In one the 4th argument is a unary function and in the 2nd it is a binary function.

toupper takes an int argument and returns an int. That quakifies uit as a unary function. Each character of the string will be passed to toupper by transform.

It does concern me that your error message contains __normal_iterat or, which is not a standard STL iterator type.

transform expects a string::iterato r, which is a normal forward iterator.

I assume you are using the -pedantic switch with g++ to disable non-standard extensions, though I can't see what difference that would make here.

[jwwicks]

This code should work OK.

I assume you are using the -pedantic switch with g++ to disable non-standard extensions, though I can't see what difference that would make here.

I'll try the -pedantic switch to see if it helps...

P.S.
Tested with the -pedantic switch and no difference in errors...
g++ (GCC) 4.1.0 20060304 (Red Hat 4.1.0-3)

Thanks,
John

[weaknessforcats]

Then I havwe no idea. Your tranforms compiles OK using Visual Studio.NET 2005.