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Generate a pseudo-random integer in a thread-safe manner
#include <stdlib.h> int rand_r( unsigned int* seed );
libc
Use the -l c option to qcc to link against this library. This library is usually included automatically.
The rand_r() function computes, in a thread-safe manner, a sequence of pseudo-random integers in the range 0 through RAND_MAX.
A pseudo-random integer.
| Safety: | |
|---|---|
| Cancellation point | No | 
| Interrupt handler | No | 
| Signal handler | Yes | 
| Thread | Yes | 
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