Hi,

Can anyone help me, I am in the middle of a project for college and I'm badly stuck. I'm trying to use Vectors in and also File I/O.
The problem occurs when I put in the import statements to alllow me to use vectors. When I put them in, the compiler no longer recognises my file stream object and comes up with the error:

C:\Program Files\Microsoft Visual Studio\MyProjects\Test\Test.cpp(23) : error C2872: 'ofstream' : ambiguous symbol
C:\Program Files\Microsoft Visual Studio\MyProjects\Test\Test.cpp(52) : error C2872: 'ifstream' : ambiguous symbol
Error executing cl.exe.

Test.exe - 2 error(s), 0 warning(s)

Ive tested the code for the files separately and the vector part separately and there's nothing wrong, both work perfectly, it seems to be just when I put em together. I'm ready to tear my hair out at this stage.

It might help if you post the code

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I've seen that ifstream & ofstream are defined in both string and fstream.h. I guess you're using namespace std - but it doesn't seem to work sometimes. You've to be careful about which ifstream you're referring to. So for using ifstream/ofstream, I think you should try using the following syntax:


Hope this works. Some compilers handle this better than others sadly.

GF

The problem with Microsoft Visual C is that you have to include the files without the .h, it is

#include <iostream>
#include <fstream>

Hapened the same with me. Hope this help

If you are using vectors and reading from a file, please i would like to take a look at your code, it would be of lot of help to me.

mail:jmenendezr@hotmail.com

Thx

Vectors are something like arrays accept you don't have to specify a size and elements can be automatically placed without specifying the element location. Vectors are used much like a push in a pop and push data structure of an array accept there is no popping off the back of the line. You do this by using the push_back function.

example:

some vector functions:

size()
empty()
max_size()
begin()
end()

But they are right, I can't be much more help without seeing your code.