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Annotation of embedaddon/php/ext/bcmath/libbcmath/src/int2num.c, revision 1.1.1.1

1.1       misho       1: /* int2num.c: bcmath library file. */
                      2: /*
                      3:     Copyright (C) 1991, 1992, 1993, 1994, 1997 Free Software Foundation, Inc.
                      4:     Copyright (C) 2000 Philip A. Nelson
                      5: 
                      6:     This library is free software; you can redistribute it and/or
                      7:     modify it under the terms of the GNU Lesser General Public
                      8:     License as published by the Free Software Foundation; either
                      9:     version 2 of the License, or (at your option) any later version.
                     10: 
                     11:     This library is distributed in the hope that it will be useful,
                     12:     but WITHOUT ANY WARRANTY; without even the implied warranty of
                     13:     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
                     14:     Lesser General Public License for more details.  (COPYING.LIB)
                     15: 
                     16:     You should have received a copy of the GNU Lesser General Public
                     17:     License along with this library; if not, write to:
                     18: 
                     19:       The Free Software Foundation, Inc.
                     20:       59 Temple Place, Suite 330
                     21:       Boston, MA 02111-1307 USA.
                     22: 
                     23:     You may contact the author by:
                     24:        e-mail:  philnelson@acm.org
                     25:       us-mail:  Philip A. Nelson
                     26:                 Computer Science Department, 9062
                     27:                 Western Washington University
                     28:                 Bellingham, WA 98226-9062
                     29:        
                     30: *************************************************************************/
                     31: 
                     32: #include <config.h>
                     33: #include <stdio.h>
                     34: #include <assert.h>
                     35: #include <stdlib.h>
                     36: #include <ctype.h>
                     37: #include <stdarg.h>
                     38: #include "bcmath.h"
                     39: #include "private.h"
                     40: 
                     41: 
                     42: /* Convert an integer VAL to a bc number NUM. */
                     43: 
                     44: void
                     45: bc_int2num (num, val)
                     46:      bc_num *num;
                     47:      int val;
                     48: {
                     49:   char buffer[30];
                     50:   char *bptr, *vptr;
                     51:   int  ix = 1;
                     52:   char neg = 0;
                     53: 
                     54:   /* Sign. */
                     55:   if (val < 0)
                     56:     {
                     57:       neg = 1;
                     58:       val = -val;
                     59:     }
                     60: 
                     61:   /* Get things going. */
                     62:   bptr = buffer;
                     63:   *bptr++ = val % BASE;
                     64:   val = val / BASE;
                     65: 
                     66:   /* Extract remaining digits. */
                     67:   while (val != 0)
                     68:     {
                     69:       *bptr++ = val % BASE;
                     70:       val = val / BASE;
                     71:       ix++;            /* Count the digits. */
                     72:     }
                     73: 
                     74:   /* Make the number. */
                     75:   bc_free_num (num);
                     76:   *num = bc_new_num (ix, 0);
                     77:   if (neg) (*num)->n_sign = MINUS;
                     78: 
                     79:   /* Assign the digits. */
                     80:   vptr = (*num)->n_value;
                     81:   while (ix-- > 0)
                     82:     *vptr++ = *--bptr;
                     83: }
                     84: