Void means there is no data type. So if you have a void function it does not return a value (and attempting to do so will cause an error) whereas a non-void function (ex. int, long, String, bool, etc) will return a value of that type.
There is no such thing as devoid in C++.
Call by reference means calling a function using a reference to a variable or a pointer. You call a function by passing refrences to a variable. For eg: void x(int &a) { a=2; } void main() { int s=3; x(s); } OR void a(int &c) { c=5;}void main(){ int *p; *p=2a(*p);}
void foo (char& c) { cin >> c; } int main() { char ch[10] {}; for (size_t c=0; c!=10; ++c) foo (c[0]); }
There is no such term in C++. You probably meant void datatype. Void simply means "no type" and is primarily used as a place-holder for functions that do not return a value, since all functions must return something even when they return nothing at all. Not to be confused with void* which is a pointer to any type which, if non-null, must be cast to the correct type before being dereferenced.
No. There is no default return type for functions, it must be explicitly specified in both the function declaration and in the definition. To specify no return value, return void. To return a variant type, return void* (pointer to void). Otherwise return the exact type.
It doesn't. Void has the same meaning in both.
There is no such thing as devoid in C++.
doesn't return the value.
void main() { int *x = malloc(sizeof(int) * 10); }
#include int main (void) { puts ("1 2 3"); }
Call by reference means calling a function using a reference to a variable or a pointer. You call a function by passing refrences to a variable. For eg: void x(int &a) { a=2; } void main() { int s=3; x(s); } OR void a(int &c) { c=5;}void main(){ int *p; *p=2a(*p);}
int main (void) { puts ("Hello, world"); return 0; }
void myfun (int *pi){if (i==NULL) printf ("check failed");}
Example: int main (void) { LOOP: goto LOOP; }
void swap(int& a, int& b ) { a^=b^=a^=b; }
By returning a value. Or using type 'void'.
For example: int main (void) { return 0; }