1 /* flonum_copy.c - copy a flonum
2 Copyright (C) 1987, 1990, 1991, 1992 Free Software Foundation, Inc.
4 This file is part of GAS, the GNU Assembler.
6 GAS is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2, or (at your option)
11 GAS is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with GAS; see the file COPYING. If not, write to
18 the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
27 unsigned int in_length
; /* 0 origin */
28 unsigned int out_length
; /* 0 origin */
31 in_length
= in
->leader
- in
->low
;
33 if (in
->leader
< in
->low
)
35 out
->leader
= out
->low
- 1; /* 0.0 case */
39 out_length
= out
->high
- out
->low
;
41 * Assume no GAPS in packing of littlenums.
42 * I.e. sizeof(array) == sizeof(element) * number_of_elements.
44 if (in_length
<= out_length
)
48 * For defensive programming, zero any high-order littlenums we don't need.
49 * This is destroying evidence and wasting time, so why bother???
51 if (in_length
< out_length
)
53 memset ((char *) (out
->low
+ in_length
+ 1), '\0', out_length
- in_length
);
56 memcpy ((void *) (out
->low
), (void *) (in
->low
), ((in_length
+ 1) * sizeof (LITTLENUM_TYPE
)));
57 out
->exponent
= in
->exponent
;
58 out
->leader
= in
->leader
- in
->low
+ out
->low
;
62 int shorten
; /* 1-origin. Number of littlenums we drop. */
64 shorten
= in_length
- out_length
;
65 /* Assume out_length >= 0 ! */
66 memcpy ((void *) (out
->low
), (void *) (in
->low
+ shorten
), ((out_length
+ 1) * sizeof (LITTLENUM_TYPE
)));
67 out
->leader
= out
->high
;
68 out
->exponent
= in
->exponent
+ shorten
;
70 } /* if any significant bits */
73 /* end of flonum_copy.c */
This page took 0.030357 seconds and 4 git commands to generate.