Hello,
I've been having some trouble with file streams crashing root on my
WinNT workstation when they're loaded into the CInt interpreter and
called. For example
file test.cpp
---------------------
class test
{
public:
test() {};
void openit(char *filename);
};
#include <fstream.h>
void test::openit(char *filename)
{
ifstream mystream;
mystream.open(filename);
};
----------------------
root [0] .L test.cpp;
root [1] test mytest;
root [2] mytest.openit("some_junk_file.txt");
--->MessageBox appears with
! root.exe - Application Error
! X The instruction at "0x002bc5ed" referenced memory at 0xffffffff,
The memory
! could not be "read".
Also, I'm confused about the following error.
file test.cpp
---------------------
class track
{
public:
float x;
float y;
};
class test
{
public:
test();
void openit(char *filename);
track returnit(float xa, float xb);
};
#include <fstream.h>
void test::openit(char *filename)
{
ifstream mystream;
mystream.open(filename);
}
trace returnit(float xa, float xb)
{
track t; t.x = xa; t.y = xb;
return t;
}
--------------------
file maintest.cpp
--------------------
{
test mytest;
track mytrack;
mytrack = mytest.returnit(5,6);
}
root [0] .L test.cpp;
root [1] .L maintest.cpp;
Error: class,struct,union or type unknown not defined FILE.maintest.cpp
LINE:4
*** Interpreter error recovered ***
The following, however, does work.
root [0] .L test.cpp
root [1] test mytest;
root [2] track mytrack;
root [3] mytrack = mytest.returnit(5,6);
Does anyone have any suggestions? Do I need to compile these with MSVC
and link to ROOT instread? What am I not reading in the root http pages
which would help me stand on my own roots? I really dislike bothering
people with my programming difficulties.
William J. Deninger
deninger@uiuc.edu
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