Strings in C are arrays of char elements, so we can’t really return a string – we must return a pointer to the first element of the string. … Note the use of const , because from the function I’m returning a string literal, a string defined in double quotes, which is a constant.
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Can a function return string?

Strings in C are arrays of char elements, so we can’t really return a string – we must return a pointer to the first element of the string. … Note the use of const , because from the function I’m returning a string literal, a string defined in double quotes, which is a constant.

How do I return a string from a function?

  1. Allocate memory on the heap using malloc or similar, then return that pointer. …
  2. Allocate the string on the stack in the calling function (the one that will be using the string), and pass a pointer in to the function to put the string into.
Can a function return a string in Python?

Python return string Let’s look at an example where our function will return the string representation of the argument. We can use the str() function to get the string representation of an object.

Can a function be a string?

A string representation of a function’s name can be used to call the function. For example, the string “f” can be used to call the function f() .

Can a C++ function return a string?

Use the std::string func() Notation to Return String From Function in C++ Return by the value is the preferred method for returning string objects from functions. Since the std::string class has the move constructor, returning even the long strings by value is efficient.

How do you return a char from a function?

  1. char* charP = createStr();
  2. char myStr[3] = &createStr();
  3. char* charP = *createStr();
Can I return string in Java?

2 Answers. Your code is fine. There’s no problem with returning Strings in this manner. In Java, a String is a reference to an immutable object.

Can you return a function in Javascript?

Functions that accept functions that return functions are common for any js code. … Functions are the same data as numbers or strings, so functions can be passed to other functions as arguments, as well as returned from functions. We can even define a function inside another function and return it outside.

How do you return a function in Javascript?

When a return statement is used in a function body, the execution of the function is stopped. If specified, a given value is returned to the function caller. For example, the following function returns the square of its argument, x , where x is a number. If the value is omitted, undefined is returned instead.

Can a function return a function Python?

Python may return functions from functions, store functions in collections such as lists and generally treat them as you would any variable or object. Defining functions in other functions and returning functions are all possible.

Does return end a function Python?

A return statement effectively ends a function; that is, when the Python interpreter executes a function’s instructions and reaches the return , it will exit the function at that point.

How do you return a string from a class in Python?

Python __repr__() function returns the object representation in string format. This method is called when repr() function is invoked on the object. If possible, the string returned should be a valid Python expression that can be used to reconstruct the object again.

Can a function return an array to the calling function?

C programming does not allow to return an entire array as an argument to a function. However, you can return a pointer to an array by specifying the array’s name without an index.

How do I return a char pointer?

If you want to return a char array from a function, you should declare the function as returning char* not char. But you seem intent on returning the contents of a char array, rather than the pointer that the C language pretends is the same type as the array.

How do you call a function in a string?

There are two methods to call a function from string stored in a variable. The first one is by using the window object method and the second one is by using eval() method. The eval() method is older and it is deprecated.

How do I return to main function in C++?

The normal exit of program is represented by zero return value. If the code has errors, fault etc., it will be terminated by non-zero value. In C++ language, the main() function can be left without return value. By default, it will return zero.

What value will a float return *?

The float() function returns a floating-point value equivalent to the number passed as is or in the form of a string.

How do you return an array of strings in C++?

  1. string* getNames() {
  2. string* names = new string[3];
  3. names[0] = “Simon”;
  4. names[1] = “Peter”;
  5. names[2] = “Dave”;
  6. return names;
  7. }
What is the return type of string in Java?

The getReturnType() method of Method class Every Method has a return type whether it is void, int, double, string or any other datatype. The getReturnType() method of Method class returns a Class object that represent the return type, declared in method at time of creating the method.

Can char be a return type?

Since int and char are inter-operable, you can return a char value by typecasting it to int. But it’ll be really hard for others who works with your program to get the status of execution, and place some conditions and criteria on it.

What does a char * function return?

The result of the CHAR function is a fixed-length character string. If the first argument can be null, the result can be null. If the first argument is null, the result is the null value.

How do you return a string array in java?

  1. import java.util.Arrays;
  2. public class ReturnArrayExample1.
  3. {
  4. public static void main(String args[])
  5. {
  6. int[] a=numbers(); //obtain the array.
  7. for (int i = 0; i < a.length; i++) //for loop to print the array.
  8. System.out.print( a[i]+ ” “);
How do you return a string from a loop in java?

  1. You can’t return more than once from a method. …
  2. Use System.out.println in the loop; Use StringBuilder to concatenate the values from the loop into a single String. …
  3. You’ll need to collect the results of your loop iterations into a Collection like ArrayList or Set and return that.
How do I return a formatted string in java?

In java, String format() method returns a formatted string using the given locale, specified format string, and arguments. We can concatenate the strings using this method and at the same time, we can format the output concatenated string.

How do you return a function?

A return statement ends the execution of a function, and returns control to the calling function. Execution resumes in the calling function at the point immediately following the call. A return statement can return a value to the calling function. For more information, see Return type.

What type of value can a function return?

A return is a value that a function returns to the calling script or function when it completes its task. A return value can be any one of the four variable types: handle, integer, object, or string. The type of value your function returns depends largely on the task it performs.

What can I return from a function Python?

The Python return keyword exits a function and instructs Python to continue executing the main program. The return keyword can send a value back to the main program. A value could be a string, a tuple, or any other object.

How do you return a class object in Python?

  1. Syntax: classmethod(function)
  2. Parameter :This function accepts the function name as a parameter.
  3. Return Type:This function returns the converted class method.
Can a function have multiple return statements?

A function can have multiple return statements. When any of them is executed, the function terminates. A function can return multiple types of values.

How do you return a string and an integer in Python?

To convert a string to integer in Python, use the int() function. This function takes two parameters: the initial string and the optional base to represent the data. Use the syntax print(int(“STR”)) to return the str as an int , or integer.

How do you return a keyword in Python?

A return statement is used to end the execution of the function call and “returns” the result (value of the expression following the return keyword) to the caller. The statements after the return statements are not executed. If the return statement is without any expression, then the special value None is returned.

Does return print in Python?

The return statement does not print out the value it returns when the function is called. It however causes the function to exit or terminate immediately, even if it is not the last statement of the function.

What is str object in Python?

Python str() function returns the string version of the object. … object: The object whose string representation is to be returned.

What is the return type of function ID ‘?

What is the return type of function id? Explanation: Execute help(id) to find out details in python returns a integer value that is unique.

Why is my function returning None Python?

If we get to the end of any function and we have not explicitly executed any return statement, Python automatically returns the value None. Some functions exists purely to perform actions rather than to calculate and return a result. Such functions are called procedures.

Can a function return a function?

Putting the parenthesis at the end of a function name, calls the function, returning the functions return value.

Can a function return an array JavaScript?

JavaScript doesn’t support functions that return multiple values. However, you can wrap multiple values into an array or an object and return the array or the object. Use destructuring assignment syntax to unpack values from the array, or properties from objects.

How do you return an array to the main function?

  1. #include
  2. int *getarray(int *a)
  3. {
  4. printf(“Enter the elements in an array : “);
  5. for(int i=0;i<5;i++)
  6. {
  7. scanf(“%d”, &a[i]);
  8. }