src/libpspp/misc.c

   1 /* PSPP - a program for statistical analysis.
   2    Copyright (C) 1997-9, 2000 Free Software Foundation, Inc.
   3
   4    This program is free software: you can redistribute it and/or modify
   5    it under the terms of the GNU General Public License as published by
   6    the Free Software Foundation, either version 3 of the License, or
   7    (at your option) any later version.
   8
   9    This program is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12    GNU General Public License for more details.
  13
  14    You should have received a copy of the GNU General Public License
  15    along with this program.  If not, see <http://www.gnu.org/licenses/>. */
  16
  17 #include <config.h>
  18 #include "misc.h"
  19 #include <gl/ftoastr.h>
  20
  21 /* Returns the number of digits in X. */
  22 int
  23 intlog10 (unsigned x)
  24 {
  25   int digits = 0;
  26
  27   do
  28     {
  29       digits++;
  30       x /= 10;
  31     }
  32   while (x > 0);
  33
  34   return digits;
  35 }
  36
  37
  38 /* A locale independent version of dtoastr (from gnulib) */
  39 int
  40 c_dtoastr (char *buf, size_t bufsize, int flags, int width, double x)
  41 {
  42   int i;
  43   int result = dtoastr (buf, bufsize, flags, width, x);
  44
  45   /* Replace the first , (if any) by a . */
  46   for (i = 0; i < result; ++i)
  47     {
  48       if (buf[i] == ',')
  49         {
  50           buf[i] = '.';
  51           break;
  52         }
  53     }
  54
  55   return result;
  56 }