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annotate libquadmath/printf/_itowa.h @ 68:561a7518be6b

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update gcc-4.6
author Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
date Sun, 21 Aug 2011 07:07:55 +0900
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children
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68
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Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
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1 /* Internal function for converting integers to ASCII.
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Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
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2 Copyright (C) 1994,95,96,97,98,99,2002,2003 Free Software Foundation, Inc.
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Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
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3 This file is part of the GNU C Library.
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4
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Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
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5 The GNU C Library is free software; you can redistribute it and/or
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Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
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6 modify it under the terms of the GNU Lesser General Public
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Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
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7 License as published by the Free Software Foundation; either
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Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
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8 version 2.1 of the License, or (at your option) any later version.
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9
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Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
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10 The GNU C Library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
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13 Lesser General Public License for more details.
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14
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Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
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15 You should have received a copy of the GNU Lesser General Public
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Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
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16 License along with the GNU C Library; if not, write to the Free
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Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
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17 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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18 02111-1307 USA. */
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19
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Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
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20 #ifndef _ITOWA_H
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21 #define _ITOWA_H 1
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22
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23 /* Convert VALUE into ASCII in base BASE (2..16).
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24 Write backwards starting the character just before BUFLIM.
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Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
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25 Return the address of the first (left-to-right) character in the number.
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26 Use upper case letters iff UPPER_CASE is nonzero. */
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27
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Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
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28 static const wchar_t _itowa_lower_digits[16] = L_("0123456789abcdef");
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Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
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29 static const wchar_t _itowa_upper_digits[16] = L_("0123456789ABCDEF");
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30
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31 static inline wchar_t *
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32 __attribute__ ((unused, always_inline))
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33 _itowa_word (unsigned long value, wchar_t *buflim,
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34 unsigned int base, int upper_case)
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35 {
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36 const wchar_t *digits = (upper_case
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Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
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37 ? _itowa_upper_digits : _itowa_lower_digits);
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38 wchar_t *bp = buflim;
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39
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40 switch (base)
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41 {
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42 #define SPECIAL(Base) \
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43 case Base: \
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44 do \
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Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
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45 *--bp = digits[value % Base]; \
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46 while ((value /= Base) != 0); \
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47 break
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48
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49 SPECIAL (10);
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50 SPECIAL (16);
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51 SPECIAL (8);
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52 default:
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53 do
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54 *--bp = digits[value % base];
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55 while ((value /= base) != 0);
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56 }
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57 return bp;
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58 }
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59
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60 static inline wchar_t *
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61 __attribute__ ((unused, always_inline))
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62 _itowa (uint64_t value, wchar_t *buflim,
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63 unsigned int base, int upper_case)
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64 {
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65 const wchar_t *digits = (upper_case
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66 ? _itowa_upper_digits : _itowa_lower_digits);
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67 wchar_t *bp = buflim;
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68
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69 switch (base)
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70 {
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71 SPECIAL (10);
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72 SPECIAL (16);
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73 SPECIAL (8);
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74 default:
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75 do
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76 *--bp = digits[value % base];
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77 while ((value /= base) != 0);
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78 }
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79 return bp;
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80 }
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81 #undef SPECIAL
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82
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83 #endif /* itowa.h */