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 * 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 * 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 * 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 * 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 * 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