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 #pragma weak atoll = _atoll 34 35 #include "synonyms.h" 36 #include <ctype.h> 37 #include <sys/types.h> 38 #include <stdlib.h> 39 40 #define ATOLL 41 42 #if defined ATOI 43 typedef int TYPE; 44 #define NAME atoi 45 #elif defined ATOL 46 typedef long TYPE; 47 #define NAME atol 48 #else 49 typedef longlong_t TYPE; 50 #define NAME atoll 51 #endif 52 53 TYPE 54 NAME(const char *p) 55 { 56 TYPE n; 57 int c, neg = 0; 58 unsigned char *up = (unsigned char *)p; 59 60 if (!isdigit(c = *up)) { 61 while (isspace(c)) 62 c = *++up; 63 switch (c) { 64 case '-': 65 neg++; 66 /* FALLTHROUGH */ 67 case '+': 68 c = *++up; 69 } 70 if (!isdigit(c)) 71 return (0); 72 } 73 for (n = '0' - c; isdigit(c = *++up); ) { 74 n *= 10; /* two steps to avoid unnecessary overflow */ 75 n += '0' - c; /* accum neg to avoid surprises at MAX */ 76 } 77 return (neg ? n : -n); 78 } 79