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Diffstat (limited to 'newlib/libc/stdlib/erand48.c')
-rw-r--r-- | newlib/libc/stdlib/erand48.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/newlib/libc/stdlib/erand48.c b/newlib/libc/stdlib/erand48.c new file mode 100644 index 000000000..26b39fb5b --- /dev/null +++ b/newlib/libc/stdlib/erand48.c @@ -0,0 +1,34 @@ +/* + * Copyright (c) 1993 Martin Birgmeier + * All rights reserved. + * + * You may redistribute unmodified or modified versions of this source + * code provided that the above copyright notice and this and the + * following conditions are retained. + * + * This software is provided ``as is'', and comes with no warranties + * of any kind. I shall in no event be liable for anything that happens + * to anyone/anything when using this software. + */ + +#include "rand48.h" + +double +_DEFUN (_erand48_r, (r, xseed), + struct _reent *r _AND + unsigned short xseed[3]) +{ + __dorand48(r, xseed); + return ldexp((double) xseed[0], -48) + + ldexp((double) xseed[1], -32) + + ldexp((double) xseed[2], -16); +} + +#ifndef _REENT_ONLY +double +_DEFUN (erand48, (xseed), + unsigned short xseed[3]) +{ + return _erand48_r (_REENT, xseed); +} +#endif /* !_REENT_ONLY */ |