diff options
Diffstat (limited to 'lib/libc/arch/sparc/gen/frexp.c')
| -rw-r--r-- | lib/libc/arch/sparc/gen/frexp.c | 74 |
1 files changed, 0 insertions, 74 deletions
diff --git a/lib/libc/arch/sparc/gen/frexp.c b/lib/libc/arch/sparc/gen/frexp.c deleted file mode 100644 index a5afb1a6d24..00000000000 --- a/lib/libc/arch/sparc/gen/frexp.c +++ /dev/null @@ -1,74 +0,0 @@ -/* $OpenBSD: frexp.c,v 1.5 2003/06/02 20:18:32 millert Exp $ */ - -/* - * Copyright (c) 1992, 1993 - * The Regents of the University of California. All rights reserved. - * - * This software was developed by the Computer Systems Engineering group - * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and - * contributed to Berkeley. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#if defined(LIBC_SCCS) && !defined(lint) -static char rcsid[] = "$OpenBSD: frexp.c,v 1.5 2003/06/02 20:18:32 millert Exp $"; -#endif /* LIBC_SCCS and not lint */ - -#include <sys/types.h> -#include <machine/ieee.h> - -/* - * Split the given value into a fraction in the range [0.5, 1.0) and - * an exponent, such that frac * (2^exp) == value. If value is 0, - * return 0. - */ -double -frexp(value, eptr) - double value; - int *eptr; -{ - union { - double v; - struct ieee_double s; - } u; - - if (value) { - /* - * Fractions in [0.5..1.0) have an exponent of 2^-1. - * Leave Inf and NaN alone, however. - * WHAT ABOUT DENORMS? - */ - u.v = value; - if (u.s.dbl_exp != DBL_EXP_INFNAN) { - *eptr = u.s.dbl_exp - (DBL_EXP_BIAS - 1); - u.s.dbl_exp = DBL_EXP_BIAS - 1; - } - return (u.v); - } else { - *eptr = 0; - return ((double)0); - } -} |