1 /* anytostr.c -- convert integers to printable strings 2 3 Copyright (C) 2001, 2006, 2008-2011 Free Software Foundation, Inc. 4 5 This program is free software: you can redistribute it and/or modify 6 it under the terms of the GNU General Public License as published by 7 the Free Software Foundation; either version 3 of the License, or 8 (at your option) any later version. 9 10 This program is distributed in the hope that it will be useful, 11 but WITHOUT ANY WARRANTY; without even the implied warranty of 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 GNU General Public License for more details. 14 15 You should have received a copy of the GNU General Public License 16 along with this program. If not, see <http://www.gnu.org/licenses/>. */ 17 18 /* Written by Paul Eggert */ 19 20 /* Tell gcc not to warn about the (i < 0) test, below. */ 21 #if (__GNUC__ == 4 && 3 <= __GNUC_MINOR__) || 4 < __GNUC__ 22 # pragma GCC diagnostic ignored "-Wtype-limits" 23 #endif 24 25 #include <config.h> 26 27 #include "inttostr.h" 28 29 /* Convert I to a printable string in BUF, which must be at least 30 INT_BUFSIZE_BOUND (INTTYPE) bytes long. Return the address of the 31 printable string, which need not start at BUF. */ 32 33 char * __attribute_warn_unused_result__ 34 anytostr (inttype i, char *buf) 35 { 36 char *p = buf + INT_STRLEN_BOUND (inttype); 37 *p = 0; 38 39 if (i < 0) 40 { 41 do 42 *--p = '0' - i % 10; 43 while ((i /= 10) != 0); 44 45 *--p = '-'; 46 } 47 else 48 { 49 do 50 *--p = '0' + i % 10; 51 while ((i /= 10) != 0); 52 } 53 54 return p; 55 } 56