srand48(3p)

srand483p

Seed the uniformly distributed double-precision pseudo-random number generator

Usage

#include <stdlib.h>

void srand48(long seedval);

Prolog

This manual page is part of the POSIX Programmer's Manual. The Linux implementation of this interface may differ (consult the corresponding Linux manual page for details of Linux behavior), or the interface may not be implemented on Linux.

Overview

Refer to drand48().

From man-pages 6.19-1 in Arch Linux 2026-11-01. Parsed by carta from the page's man source.