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 #pragma ident "%Z%%M% %I% %E% SMI"
31
32 /*
33 * ecvt converts to decimal
34 * the number of digits is specified by ndigit
35 * decpt is set to the position of the decimal point
36 * sign is set to 0 for positive, 1 for negative
37 *
38 */
39
40 #pragma weak _ecvt = ecvt
41 #pragma weak _fcvt = fcvt
42
43 #include "lint.h"
44 #include <sys/types.h>
45 #include <stdlib.h>
46 #include <floatingpoint.h>
47 #include "tsd.h"
48
49 char *
ecvt(number,ndigits,decpt,sign)50 ecvt(number, ndigits, decpt, sign)
51 double number;
52 int ndigits;
53 int *decpt;
54 int *sign;
55 {
56 char *buf = tsdalloc(_T_ECVT, DECIMAL_STRING_LENGTH, NULL);
57
58 return (econvert(number, ndigits, decpt, sign, buf));
59 }
60
61 char *
fcvt(number,ndigits,decpt,sign)62 fcvt(number, ndigits, decpt, sign)
63 double number;
64 int ndigits;
65 int *decpt;
66 int *sign;
67 {
68 char *buf = tsdalloc(_T_ECVT, DECIMAL_STRING_LENGTH, NULL);
69 char *ptr, *val;
70 char ch;
71 int deci_val;
72
73 ptr = fconvert(number, ndigits, decpt, sign, buf);
74 val = ptr;
75 deci_val = *decpt;
76
77 while ((ch = *ptr) != '\0') {
78 if (ch != '0') { /* You execute this if there are no */
79 /* leading zero's remaining. */
80 *decpt = deci_val; /* If there are leading zero's */
81 return (ptr); /* gets updated. */
82 }
83 ptr++;
84 deci_val--;
85 }
86 return (val);
87 }
88
89 char *
qecvt(number,ndigits,decpt,sign)90 qecvt(number, ndigits, decpt, sign)
91 long double number;
92 int ndigits;
93 int *decpt;
94 int *sign;
95 {
96 char *buf = tsdalloc(_T_ECVT, DECIMAL_STRING_LENGTH, NULL);
97
98 return (qeconvert(&number, ndigits, decpt, sign, buf));
99 }
100
101 char *
qfcvt(number,ndigits,decpt,sign)102 qfcvt(number, ndigits, decpt, sign)
103 long double number;
104 int ndigits;
105 int *decpt;
106 int *sign;
107 {
108 char *buf = tsdalloc(_T_ECVT, DECIMAL_STRING_LENGTH, NULL);
109
110 return (qfconvert(&number, ndigits, decpt, sign, buf));
111 }
112
113 char *
qgcvt(number,ndigits,buffer)114 qgcvt(number, ndigits, buffer)
115 long double number;
116 int ndigits;
117 char *buffer;
118 {
119 return (qgconvert(&number, ndigits, 0, buffer));
120 }
121