prepare (1/3): 
finished

make (2/3): 
g++ -std=c++11 -O2 -Wall  -o main.o -c main.cpp 
g++ -std=c++11 -O2 -Wall  -o functional.o -c functional.cpp 
g++ -std=c++11 -O2 -Wall  -o ioprocess.o -c ioprocess.cpp 
g++ -std=c++11 -O2 -Wall  -o main main.o functional.o ioprocess.o
finished

clean (3/3): 
finished

all task finished, build successfully