rand_r()
Generate a pseudo-random integer in a thread-safe manner
Synopsis:
#include <stdlib.h>
int rand_r( unsigned int* seed );
Arguments:
- seed
- A pointer to the seed for the sequence of pseudo-random numbers. If you call rand_r() with the same initial value for the seed, the same sequence is generated.
Library:
libc
Use the -l c option to qcc to link against this library. This library is usually included automatically.
Description:
The rand_r() function computes, in a thread-safe manner, a sequence of pseudo-random integers in the range 0 through RAND_MAX.
Returns:
A pseudo-random integer.
Classification:
| Safety: | |
|---|---|
| Cancellation point | No |
| Interrupt handler | No |
| Signal handler | Yes |
| Thread | Yes |