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This page displays the COHERENT manpage for nrand48() [Return a 48-bit pseudo-random number as a non-negative long integer].
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nrand48() -- Random-Number Function (libc) Return a 48-bit pseudo-random number as a non-negative long integer long nrand48(xsubi) unsigned short xsubi[3]; Function nrand48() generates a 48-bit random number, then returns its high 31 bits in the form of a non-negative long. The value returned is (or should be) uniformly distributed throughout the range of zero through 2^31. xsubi is an array of three unsigned short integers from which the pseudo- random number is built. See Also libc, srand48()