Question

Which of the following function prototypes is valid?

1) int add(int a, int b)
2) void multiply(int x, int y)
3) float divide(float p, float q)
4) char* concatenate(char* str1, char* str2)

Answer 1

All of the given function prototypes are valid.

Step-by-step explanation:

All of the given function prototypes are valid.

1. int add(int a, int b): This function prototype declares a function named add that takes two integer parameters (a and b) and returns an integer.
2. void multiply(int x, int y): This function prototype declares a void function named multiply that takes two integer parameters (x and y) and does not return a value.
3. float divide(float p, float q): This function prototype declares a function named divide that takes two float parameters (p and q) and returns a float.
4. char* concatenate(char* str1, char* str2): This function prototype declares a function named concatenate that takes two char pointer parameters (str1 and str2) and returns a char pointer.