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annotate libquadmath/printf/_itoa.h @ 144:8f4e72ab4e11

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fix segmentation fault caused by nothing next cur_op to end
author Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
date Sun, 23 Dec 2018 21:23:56 +0900
parents 561a7518be6b
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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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2 Copyright (C) 1994-1999,2002,2003,2007 Free Software Foundation, Inc.
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3 This file is part of the GNU C Library.
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4
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5 The GNU C Library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Lesser General Public
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7 License as published by the Free Software Foundation; either
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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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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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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Lesser General Public License for more details.
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14
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15 You should have received a copy of the GNU Lesser General Public
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16 License along with the GNU C Library; if not, write to the Free
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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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20 #ifndef _ITOA_H
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21 #define _ITOA_H
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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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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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28 static const char _itoa_lower_digits[16] = "0123456789abcdef";
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29 static const char _itoa_upper_digits[16] = "0123456789ABCDEF";
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30
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31 static inline char * __attribute__ ((unused, always_inline))
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32 _itoa_word (unsigned long value, char *buflim,
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33 unsigned int base, int upper_case)
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34 {
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35 const char *digits = (upper_case ? _itoa_upper_digits : _itoa_lower_digits);
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36
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37 switch (base)
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38 {
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39 # define SPECIAL(Base) \
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40 case Base: \
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41 do \
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42 *--buflim = digits[value % Base]; \
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43 while ((value /= Base) != 0); \
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44 break
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45
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46 SPECIAL (10);
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47 SPECIAL (16);
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48 SPECIAL (8);
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49 default:
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50 do
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51 *--buflim = digits[value % base];
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52 while ((value /= base) != 0);
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53 }
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54 return buflim;
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55 }
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56
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57 static inline char * __attribute__ ((unused, always_inline))
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58 _itoa (uint64_t value, char *buflim,
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59 unsigned int base, int upper_case)
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60 {
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61 const char *digits = (upper_case ? _itoa_upper_digits : _itoa_lower_digits);
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62
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63 switch (base)
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64 {
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65 SPECIAL (10);
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66 SPECIAL (16);
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67 SPECIAL (8);
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68 default:
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69 do
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70 *--buflim = digits[value % base];
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71 while ((value /= base) != 0);
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72 }
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73 return buflim;
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74 }
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75 # undef SPECIAL
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76
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77 #endif /* itoa.h */