1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22 /*
23 * Copyright 2008 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26
27 /* Copyright (c) 1988 AT&T */
28 /* All Rights Reserved */
29
30 /*
31 * ecvt converts to decimal
32 * the number of digits is specified by ndigit
33 * decpt is set to the position of the decimal point
34 * sign is set to 0 for positive, 1 for negative
35 *
36 */
37
38 #pragma weak _ecvt = ecvt
39 #pragma weak _fcvt = fcvt
40
41 #include "lint.h"
42 #include <sys/types.h>
43 #include <stdlib.h>
44 #include <floatingpoint.h>
45 #include "tsd.h"
46
47 char *
ecvt(number,ndigits,decpt,sign)48 ecvt(number, ndigits, decpt, sign)
49 double number;
50 int ndigits;
51 int *decpt;
52 int *sign;
53 {
54 char *buf = tsdalloc(_T_ECVT, DECIMAL_STRING_LENGTH, NULL);
55
56 return (econvert(number, ndigits, decpt, sign, buf));
57 }
58
59 char *
fcvt(number,ndigits,decpt,sign)60 fcvt(number, ndigits, decpt, sign)
61 double number;
62 int ndigits;
63 int *decpt;
64 int *sign;
65 {
66 char *buf = tsdalloc(_T_ECVT, DECIMAL_STRING_LENGTH, NULL);
67 char *ptr, *val;
68 char ch;
69 int deci_val;
70
71 ptr = fconvert(number, ndigits, decpt, sign, buf);
72 val = ptr;
73 deci_val = *decpt;
74
75 while ((ch = *ptr) != '\0') {
76 if (ch != '0') { /* You execute this if there are no */
77 /* leading zero's remaining. */
78 *decpt = deci_val; /* If there are leading zero's */
79 return (ptr); /* gets updated. */
80 }
81 ptr++;
82 deci_val--;
83 }
84 return (val);
85 }
86
87 char *
qecvt(number,ndigits,decpt,sign)88 qecvt(number, ndigits, decpt, sign)
89 long double number;
90 int ndigits;
91 int *decpt;
92 int *sign;
93 {
94 char *buf = tsdalloc(_T_ECVT, DECIMAL_STRING_LENGTH, NULL);
95
96 return (qeconvert(&number, ndigits, decpt, sign, buf));
97 }
98
99 char *
qfcvt(number,ndigits,decpt,sign)100 qfcvt(number, ndigits, decpt, sign)
101 long double number;
102 int ndigits;
103 int *decpt;
104 int *sign;
105 {
106 char *buf = tsdalloc(_T_ECVT, DECIMAL_STRING_LENGTH, NULL);
107
108 return (qfconvert(&number, ndigits, decpt, sign, buf));
109 }
110
111 char *
qgcvt(number,ndigits,buffer)112 qgcvt(number, ndigits, buffer)
113 long double number;
114 int ndigits;
115 char *buffer;
116 {
117 return (qgconvert(&number, ndigits, 0, buffer));
118 }
119