Зміст курсу
C++ Data Types
2. Numerical Data Types
4. Other Data Types and Concepts
C++ Data Types
Auto
Although C++ is a typed language, you can use auto when initializing a variable to determine the type automatically. This feature was introduced in C++14 and does not work with older versions.
Here is an example:
main.cpp
Note that it is harder to catch errors when using auto. Consider the example:
main.cpp
Specifying types would help us understand code better and find what's wrong:
main.cpp
Note
Any of
num1,num2ornum3should befloatto output the correct result.
Nevertheless, auto is widely used in range-based for loops since it is a versatile method of iterating over arrays and other containers. Just use the following syntax for iterating over arr:
main.cpp
It also can be used when the type is long to type but is clear from the context and can't lead to incorrect results.
Все було зрозуміло?
Зміст курсу
C++ Data Types
2. Numerical Data Types
4. Other Data Types and Concepts
C++ Data Types
Auto
Although C++ is a typed language, you can use auto when initializing a variable to determine the type automatically. This feature was introduced in C++14 and does not work with older versions.
Here is an example:
main.cpp
Note that it is harder to catch errors when using auto. Consider the example:
main.cpp
Specifying types would help us understand code better and find what's wrong:
main.cpp
Note
Any of
num1,num2ornum3should befloatto output the correct result.
Nevertheless, auto is widely used in range-based for loops since it is a versatile method of iterating over arrays and other containers. Just use the following syntax for iterating over arr:
main.cpp
It also can be used when the type is long to type but is clear from the context and can't lead to incorrect results.
Все було зрозуміло?
