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Generate a pseudo-random integer
#include <stdlib.h>
int rand( void );
libc
Use the -l c option to
qcc
to link against this library.
This library is usually included automatically.
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().
A pseudo-random integer.
#include <stdio.h>
#include <stdlib.h>
int main( void )
{
int i;
for( i=1; i < 10; ++i ) {
printf( "%d\n", rand() );
}
return EXIT_SUCCESS;
}
ANSI,
POSIX 1003.1
Safety: | |
Cancellation point |
No |
Interrupt handler |
No |
Signal handler |
Yes |
Thread |
No |
lrand48(),
nrand48(),
rand_r(),
srand()
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