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 * 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 * 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 * 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 * 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 * 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