1*a9fa9459Szrj /* Allocate memory region filled with spaces. 2*a9fa9459Szrj Copyright (C) 1991 Free Software Foundation, Inc. 3*a9fa9459Szrj 4*a9fa9459Szrj This file is part of the libiberty library. 5*a9fa9459Szrj Libiberty is free software; you can redistribute it and/or 6*a9fa9459Szrj modify it under the terms of the GNU Library General Public 7*a9fa9459Szrj License as published by the Free Software Foundation; either 8*a9fa9459Szrj version 2 of the License, or (at your option) any later version. 9*a9fa9459Szrj 10*a9fa9459Szrj Libiberty is distributed in the hope that it will be useful, 11*a9fa9459Szrj but WITHOUT ANY WARRANTY; without even the implied warranty of 12*a9fa9459Szrj MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13*a9fa9459Szrj Library General Public License for more details. 14*a9fa9459Szrj 15*a9fa9459Szrj You should have received a copy of the GNU Library General Public 16*a9fa9459Szrj License along with libiberty; see the file COPYING.LIB. If 17*a9fa9459Szrj not, write to the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor, 18*a9fa9459Szrj Boston, MA 02110-1301, USA. */ 19*a9fa9459Szrj 20*a9fa9459Szrj /* 21*a9fa9459Szrj 22*a9fa9459Szrj @deftypefn Extension char* spaces (int @var{count}) 23*a9fa9459Szrj 24*a9fa9459Szrj Returns a pointer to a memory region filled with the specified 25*a9fa9459Szrj number of spaces and null terminated. The returned pointer is 26*a9fa9459Szrj valid until at least the next call. 27*a9fa9459Szrj 28*a9fa9459Szrj @end deftypefn 29*a9fa9459Szrj 30*a9fa9459Szrj */ 31*a9fa9459Szrj 32*a9fa9459Szrj #ifdef HAVE_CONFIG_H 33*a9fa9459Szrj #include "config.h" 34*a9fa9459Szrj #endif 35*a9fa9459Szrj #include "ansidecl.h" 36*a9fa9459Szrj #include "libiberty.h" 37*a9fa9459Szrj 38*a9fa9459Szrj #if VMS 39*a9fa9459Szrj #include <stdlib.h> 40*a9fa9459Szrj #include <unixlib.h> 41*a9fa9459Szrj #else 42*a9fa9459Szrj /* For systems with larger pointers than ints, these must be declared. */ 43*a9fa9459Szrj extern PTR malloc (size_t); 44*a9fa9459Szrj extern void free (PTR); 45*a9fa9459Szrj #endif 46*a9fa9459Szrj 47*a9fa9459Szrj const char * 48*a9fa9459Szrj spaces (int count) 49*a9fa9459Szrj { 50*a9fa9459Szrj register char *t; 51*a9fa9459Szrj static char *buf; 52*a9fa9459Szrj static int maxsize; 53*a9fa9459Szrj 54*a9fa9459Szrj if (count > maxsize) 55*a9fa9459Szrj { 56*a9fa9459Szrj free (buf); 57*a9fa9459Szrj buf = (char *) malloc (count + 1); 58*a9fa9459Szrj if (buf == (char *) 0) 59*a9fa9459Szrj return 0; 60*a9fa9459Szrj for (t = buf + count ; t != buf ; ) 61*a9fa9459Szrj { 62*a9fa9459Szrj *--t = ' '; 63*a9fa9459Szrj } 64*a9fa9459Szrj maxsize = count; 65*a9fa9459Szrj buf[count] = '\0'; 66*a9fa9459Szrj } 67*a9fa9459Szrj return (const char *) (buf + maxsize - count); 68*a9fa9459Szrj } 69*a9fa9459Szrj 70