Mercurial > hg > CbC > CbC_gcc
diff libquadmath/printf/_itoa.h @ 68:561a7518be6b
update gcc-4.6
author | Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> |
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date | Sun, 21 Aug 2011 07:07:55 +0900 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/libquadmath/printf/_itoa.h Sun Aug 21 07:07:55 2011 +0900 @@ -0,0 +1,77 @@ +/* Internal function for converting integers to ASCII. + Copyright (C) 1994-1999,2002,2003,2007 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#ifndef _ITOA_H +#define _ITOA_H + +/* Convert VALUE into ASCII in base BASE (2..16). + Write backwards starting the character just before BUFLIM. + Return the address of the first (left-to-right) character in the number. + Use upper case letters iff UPPER_CASE is nonzero. */ + +static const char _itoa_lower_digits[16] = "0123456789abcdef"; +static const char _itoa_upper_digits[16] = "0123456789ABCDEF"; + +static inline char * __attribute__ ((unused, always_inline)) +_itoa_word (unsigned long value, char *buflim, + unsigned int base, int upper_case) +{ + const char *digits = (upper_case ? _itoa_upper_digits : _itoa_lower_digits); + + switch (base) + { +# define SPECIAL(Base) \ + case Base: \ + do \ + *--buflim = digits[value % Base]; \ + while ((value /= Base) != 0); \ + break + + SPECIAL (10); + SPECIAL (16); + SPECIAL (8); + default: + do + *--buflim = digits[value % base]; + while ((value /= base) != 0); + } + return buflim; +} + +static inline char * __attribute__ ((unused, always_inline)) +_itoa (uint64_t value, char *buflim, + unsigned int base, int upper_case) +{ + const char *digits = (upper_case ? _itoa_upper_digits : _itoa_lower_digits); + + switch (base) + { + SPECIAL (10); + SPECIAL (16); + SPECIAL (8); + default: + do + *--buflim = digits[value % base]; + while ((value /= base) != 0); + } + return buflim; +} +# undef SPECIAL + +#endif /* itoa.h */