rand()
Generate a pseudo-random integer
Synopsis:
#include <stdlib.h> int rand( void );
Library:
libc
Use the -l c option to qcc to link against this library. This library is usually included automatically.
Description:
The rand() function computes a pseudo-random integer in the range 0 to RAND_MAX. You can start the sequence at different values by calling srand() .
The rand_r() function is a thread-safe version of rand().
Returns:
A pseudo-random integer.
Examples:
#include <stdio.h> #include <stdlib.h> int main( void ) { int i; for( i=1; i < 10; ++i ) { printf( "%d\n", rand() ); } return EXIT_SUCCESS; }
Classification:
Safety: | |
---|---|
Cancellation point | No |
Interrupt handler | No |
Signal handler | Yes |
Thread | No |