Can I return multiple values from a function in C++?
While C++ does not have an official way to return multiple values from a function, one can make use of the std::pair , std::tuple , or a local struct to return multiple values.
Is it bad to return multiple values from a function?
Yes, returning multiple values (i.e., a tuple) is definitely pythonic.
How can I return multiple strings in C++?
Luckily, there are many alternatives in C++ to return multiple values.
- Using reference parameters in C++ We have seen that we can use pointers in C to return more than one value from a function in the previous post.
- Using std::pair in C++
- Using std::tuple in C++11.
- Using std::map or std::unordered_map (in C++11)
Can a method return multiple values?
You can return only one value in Java. If needed you can return multiple values using array or an object.
How can I return multiple values from a function in SQL?
A SQL Server function can return a single value or multiple values. To return multiple values, the return type of the the function should be a table. Running the query will list out 10 consecutive dates starting from today, as shown below: As you can see, the return type of the function test_function is a table.
Can function return multiple values in SQL?
For this question answer will be Yes functions will return either single or multiple values. Generally SQL Server functions will return only one parameter value if we want to return multiple values from function then we need to send multiple values in table format by using table valued functions.
Can you have multiple return statements in C?
In C or C++, we cannot return multiple values from a function directly. In this section, we will see how to use some trick to return more than one value from a function. We can return more than one values from a function by using the method called “call by address”, or “call by reference”.
Can a function return more than one value C++?
A C++ function can return only one value. However, you can return multiple values by wrapping them in a class or struct. Or you could use std::tuple , if that is available with your compiler.
How do you return an array?
How to return an array in Java
- import java.util.Arrays;
- public class ReturnArrayExample1.
- public static void main(String args)
- int a=numbers(); //obtain the array.
- for (int i = 0; i < a.length; i++) //for loop to print the array.
- System.out.print( a[i]+ ” “);
Is it possible to return multiple values from a function in C?
Unfortunately, C and C++ do not allow this directly. But fortunately, with a little bit of clever programming, we can easily achieve this. By using pointers. By using structures.
Are there any unsafe functions in the C language?
There are many unsafe functions in C that can lead to buffer overflow and they have the safe functions to replace them. I have a few: sprintf () === replace by === ?
Which is an example of an unsafe function?
Usage of strncpy for “safe” string copying is an immediate sign of incompetent code. Another group of unsafe functions (albeit unsafe for a different reason) are functions from ato.. group: atoi, atof, atol and so on.
How to return multiple values from an array?
Returning multiple values using an array (Works only when returned items are of same types): When an array is passed as an argument then its base address is passed to the function so whatever changes made to the copy of the array, it is changed in the original array.