Possible ways:
void byvalue (MyClass param);
void byptr (MyClass *paramptr);
void byref (MyClass ¶mref);
MyClass c;
byvalue (c);
byptr (&c);
byref (c);
I guess you meant the following:'In C language, when you call a function,the parameters are passed by-value.'
a. Functions can have only one parameter. b. The order in which the parameters are defined matters. c. Parameters can be passed to a function in any order. d. Parameters have no order.
You can have a function with no parameters.
By reference. The name of the string is converted to a pointer (in C/C++) and given to the function as the address of the first element. (In Java, all objects are passed by reference, and there are no pointers.)
There is no builtin function 'counta' in C.
No objects in C. For C++, it is destructor.
Parameters are the formal arguments of a function, as defined by the function. When you pass arguments to a function, those arguments are assigned to the function's parameters, either by value or by reference, depending on how the parameters are declared in the function. The following example explains both: void foo( int param ) { // param is a by value parameter, which is a copy of the argument passed to it. } void bar( int& param ) { // param is a reference parameter, which references the argument passed to it. } int main() { int arg = 100; foo( arg ); bar( arg ); return( 0 ); } Note that passing a pointer is the same as passing an int by value: the pointer's value is passed to the function, not the pointer itself. To pass a pointer by reference, you must pass a pointer to pointer and the function's parameter must accept a pointer to pointer.
A function in C++ are a set of command or a piece of code that needs to be executed again and again with different or same parameters for expample void somefunc() { cout<<"Hello"; } will print hello whenever the function is called or int add(int a,int b) { return a+b; } This function will return the sum of the parameters passed to invoke this function you need to write a line add(4,5); and it will return "9"
The formal arguments are the names given to the parameters/arguments in the function declaration. These names will be used within the body of the function. void myFunc( int i, char c ); // Function prototype The actual arguments are the variables and/or constants (those supplied by the caller) that are used when invoking the function. int intVar = 6; char charVar = 'e'; // Actual parameters 3 and 'G' will be mapped to the // formal parameters 'i' and 'c' myFunc( 3, 'G' ); // Execute function // Actual parameters 'intVar' and 'charVar' will be mapped // to the formal parameters 'i' and 'c' myFunc( intVar, charVar ); // Execute function
No. C function argument are positional.
one function but multiple behaviours depending on the parameters
The name of the function is established by what is called function declaration. It also establishes the number and the types of parameters.