The function srand () in C

The function void srand (unsigned int seed) provides seed for the random number generator used by the rand function.

Declaring the function srand () in C

Below is the declaration for srand () in C:

 void srand ( unsigned int seed ) 

Parameters

seed : is an integer value, used as a seed by a random number algorithm.

Returns the value

This function does not return any values.

For example

The following C program illustrates the usage of srand () in C:

 #include #include #include int main () { int i , n ; time_t t ; n = 5 ; /* Khoi tao bo sinh so ngau nhien */ srand (( unsigned ) time (& t )); /* in 5 so ngau nhien trong day tu 0 toi 50 */ for ( i = 0 ; i < n ; i ++ ) { printf ( "%dn" , rand () % 50 ); } return ( 0 ); } 

Compiling and running the above C program will result:

According to Tutorialspoint

Previous article: Function rand () in C

Next lesson: Function mblen () in C