rand() - Utility Function
How is Utility function "rand()" used in C++?
How to generate random numbers ?
Explanation
rand() is a Utility Function that is used to generate pseudo random numbers. Every time this function returns a integer between the range zero and RAND_MAX is returned.
int rand(void);
Result :
The random integer is:: 130
The random integer is:: 10982
The random integer is:: 1090
The random integer is:: 11656
The random integer is:: 7117
In the above example rand() function returns random numbers between 0 and 5.
Syntax to generate random numbers:
int rand(void);
Example :
| #include <stdlib.h> #include <stdio.h> int main() { int r; for(r=0;r<5;r++) { printf("The random integer is:: %d\n", rand()); } return 0; } |
Result :
The random integer is:: 130
The random integer is:: 10982
The random integer is:: 1090
The random integer is:: 11656
The random integer is:: 7117
In the above example rand() function returns random numbers between 0 and 5.
