Reverse polish calculator

Example

3 2 1 + * 4 - == (2+1)*3-4

Name		Name	Last commit message	Last commit date
Latest commit History 3 Commits
.clang-format		.clang-format
.gitignore		.gitignore
CMakeLists.txt		CMakeLists.txt
LICENSE		LICENSE
README.md		README.md
add_op.cpp		add_op.cpp
add_op.hpp		add_op.hpp
calc.cpp		calc.cpp
calc.hpp		calc.hpp
div_op.cpp		div_op.cpp
div_op.hpp		div_op.hpp
double_node.cpp		double_node.cpp
double_node.hpp		double_node.hpp
i_node.hpp		i_node.hpp
i_operation.hpp		i_operation.hpp
main.cpp		main.cpp
mul_op.cpp		mul_op.cpp
mul_op.hpp		mul_op.hpp
operator_node.cpp		operator_node.cpp
operator_node.hpp		operator_node.hpp
parser.cpp		parser.cpp
parser.hpp		parser.hpp
sub_op.cpp		sub_op.cpp
sub_op.hpp		sub_op.hpp
tokenizer.cpp		tokenizer.cpp
tokenizer.hpp		tokenizer.hpp
utils.cpp		utils.cpp
utils.hpp		utils.hpp