
1. Contents
A.h        ...for class A
A.C        ...for class A
ALinkDef.h ...for class A

write.C    ...to fill a ROOT file
read.C     ...to read the ROOT file 

make.sh    ...to make libData.so for ROOT I/O
              to make executable read and write

run.C      ...to draw histogram in ROOT session

2. Run
source make.sh
./write test.root
./read  test.root

root
root [0] .x run.C

3. Results
'./read test.root' returned the correct results.
'.x run.C' returned a incorrect histogram filled with 0.
