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, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #pragma ident "%Z%%M% %I% %E% SMI" 28 29 /* Copyright (c) 1988 AT&T */ 30 /* All Rights Reserved */ 31 32 33 #include "synonyms.h" 34 #include <errno.h> 35 #include <stdio.h> 36 #include <values.h> 37 #include <floatingpoint.h> 38 #include <stdlib.h> 39 #include <sys/types.h> 40 #include "libc.h" 41 #include "xpg6.h" 42 43 double 44 strtod(const char *cp, char **ptr) 45 { 46 double x; 47 decimal_mode mr; 48 decimal_record dr; 49 fp_exception_field_type fs; 50 enum decimal_string_form form; 51 char *pechar; 52 int lc; 53 54 lc = (__xpg6 & _C99SUSv3_recognize_hexfp)? -1 : 0; 55 string_to_decimal((char **)&cp, MAXINT, lc, &dr, &form, &pechar); 56 if (ptr != NULL) 57 *ptr = (char *)cp; 58 if (form == invalid_form) 59 return (0.0); /* Shameful kluge for SVID's sake. */ 60 #if defined(__sparc) 61 mr.rd = _QgetRD(); 62 #elif defined(__i386) || defined(__amd64) 63 mr.rd = __xgetRD(); 64 #else 65 #error Unknown architecture 66 #endif 67 if ((int)form < 0) 68 __hex_to_double(&dr, mr.rd, &x, &fs); 69 else 70 decimal_to_double(&x, &mr, &dr, &fs); 71 if (fs & ((1 << fp_overflow) | (1 << fp_underflow))) 72 errno = ERANGE; 73 return (x); 74 } 75 76 float 77 strtof(const char *cp, char **ptr) 78 { 79 float x; 80 decimal_mode mr; 81 decimal_record dr; 82 fp_exception_field_type fs; 83 enum decimal_string_form form; 84 char *pechar; 85 86 string_to_decimal((char **)&cp, MAXINT, -1, &dr, &form, &pechar); 87 if (ptr != NULL) 88 *ptr = (char *)cp; 89 if (form == invalid_form) 90 return (0.0f); 91 #if defined(__sparc) 92 mr.rd = _QgetRD(); 93 #elif defined(__i386) || defined(__amd64) 94 mr.rd = __xgetRD(); 95 #else 96 #error Unknown architecture 97 #endif 98 if ((int)form < 0) 99 __hex_to_single(&dr, mr.rd, &x, &fs); 100 else 101 decimal_to_single(&x, &mr, &dr, &fs); 102 if (fs & ((1 << fp_overflow) | (1 << fp_underflow))) 103 errno = ERANGE; 104 return (x); 105 } 106 107 long double 108 strtold(const char *cp, char **ptr) 109 { 110 long double x; 111 decimal_mode mr; 112 decimal_record dr; 113 fp_exception_field_type fs; 114 enum decimal_string_form form; 115 char *pechar; 116 117 string_to_decimal((char **)&cp, MAXINT, -1, &dr, &form, &pechar); 118 if (ptr != NULL) 119 *ptr = (char *)cp; 120 if (form == invalid_form) 121 return (0.0L); 122 #if defined(__sparc) 123 mr.rd = _QgetRD(); 124 if ((int)form < 0) 125 __hex_to_quadruple(&dr, mr.rd, &x, &fs); 126 else 127 decimal_to_quadruple(&x, &mr, &dr, &fs); 128 #elif defined(__i386) || defined(__amd64) 129 mr.rd = __xgetRD(); 130 if ((int)form < 0) 131 __hex_to_extended(&dr, mr.rd, (extended *)&x, &fs); 132 else 133 decimal_to_extended((extended *)&x, &mr, &dr, &fs); 134 #else 135 #error Unknown architecture 136 #endif 137 if (fs & ((1 << fp_overflow) | (1 << fp_underflow))) 138 errno = ERANGE; 139 return (x); 140 } 141