make ptr.o
g++    -c -o ptr.o ptr.cpp
ptr.cpp: In function ‘int main()’:
/home/anomit/cfiles/ptr.cpp:6: error: ‘cout’ was not declared in this scope
/home/anomit/cfiles/ptr.cpp:7: error: ‘cin’ was not declared in this scope
/home/anomit/cfiles/ptr.cpp:11: error: ‘sum’ was not declared in this scope
make: *** [ptr.o] Error 1
Completed... unsuccessful
Total time taken: 1 secs