What does int ( * f [ ] ) ( int * ) represent?

int (*f[])(int*) = {f1, f2, f2, f1 }; is a declaration of an array of function pointers of type int( int * ) that is of functions that have return type int and one parameter of type int *. As f is an array then f[i++] is an element of the array that has one of the values f1, f2 and so on.
Besides, what is the meaning of int ( * a ) ( int )?
The () arround *a is to tell the compiler you want to have a as a pointer, because if you don’t the compile will read it as “(int *)a (int)” making it a function declaration. They are used in C for when you want to use custom allocator functions, or when you are using library functions like sort.
And, can a pointer to a function return an int? Currently working in Houston as a Software Engineer. A pointer to a function that takes an int as its parameter and returns an int. This function pointer can point to any actual function that takes an int and returns an int.
Accordingly, what kind of data type is INT in C?
Other data types include float and double . C, C++, C# and many other programming languages recognize int as a data type. In C++, the following is how you declare an integer variable: int a = 7;
Moreover, what does Int & A = B do in Java?
int& a = b does not allocate 4 extra bytes (You described a pointer). It is only used as an alias for the compiler. Create a function which sets a value using a and b and disassemble it.

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