Bruce Momjian <pgman@candle.pha.pa.us> writes:
> Because random returns a double, I think it is very possible that we
> could return 1 due to rounding,
Not unless your machine has a "double" type with less than 32 bits of
precision, which seems pretty unlikely. It'd be sufficient to do
/* result 0.0 <= x < 1.0 */
result = ((double) random()) / ((double) MAX_RANDOM_VALUE + 1.0);
regards, tom lane
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