Hi. I am using root version 3.10/02 and gcc version 2.96. I have a
question with regard to the use of the STL class 'vector'. Specifically I
have been using vectors of type TGraph*. What I would like to do is to
compile a function that operates on a TGraph vector. So a simple example
is:
#include <vector>
#include "TGraph.h"
int vec_size (vector< TGraph* > vgraph ) {
cout << vgraph.size() << endl;
return 0;
}
I compile this with:
root [0] .L vec_size.C+
and I get a library called vec_size_C.so. However once this library is
loaded any vectors I create interactively don't seem to work properly --
even if I don't use the function I defined:
root [0] .L vec_size_C.so
root [1] #include<vector>
root [2] vector<TGraph*> vgr;
root [3] vgr.size()
Error: Can't call vector<TGraph*,allocator<TGraph*> >::size() in current
scope FILE:(tmpfile) LINE:1
Possible candidates are...
filename line:size busy function type and name (in
vector<TGraph*,allocator<TGraph*> >)
Error: Symbol vgr is not defined in current scope FILE:(tmpfile) LINE:1
Error: Failed to evaluate vgr.size()Possible candidates are...
filename line:size busy function type and name
*** Interpreter error recovered ***
The same commands work fine if I don't load the library. Any idea what
I'm doing wrong here? Thanks.
Matthew Wood
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