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- /* Copyright (C) 1991, 1992 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 Library General Public License as
- published by the Free Software Foundation; either version 2 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
- Library General Public License for more details.
-
- You should have received a copy of the GNU Library General Public
- License along with the GNU C Library; see the file COPYING.LIB. If
- not, write to the Free Software Foundation, Inc., 675 Mass Ave,
- Cambridge, MA 02139, USA. */
-
- #include <ansidecl.h>
- #include <stdio.h>
- #include <math.h>
- #include <printf.h>
- #include "ieee754.h"
-
- #define outchar(x) \
- do \
- { \
- register CONST int outc = (x); \
- if (putc (outc, s) == EOF) \
- return -1; \
- else \
- ++done; \
- } while (0)
-
- #ifndef HANDLE_SPECIAL
-
- #ifdef __GNUC__
- __inline
- #endif
- static int
- DEFUN(special_ieee754, (s, info, fpnum),
- FILE *s AND CONST struct printf_info *info AND LONG_DOUBLE fpnum)
- {
- int is_neg;
- CONST char *string;
-
- if (__isnan ((double) fpnum))
- {
- string = "NaN";
- is_neg = 0;
- }
- else if (__isinf ((double) fpnum))
- {
- string = "Inf";
- is_neg = fpnum < 0;
- }
- else
- return 0;
-
- {
- size_t done = 0;
- int width = info->prec > info->width ? info->prec : info->width;
-
- if (is_neg || info->showsign || info->space)
- --width;
- width -= 3;
-
- if (!info->left)
- while (width-- > 0)
- outchar (' ');
-
- if (is_neg)
- outchar ('-');
- else if (info->showsign)
- outchar ('+');
- else if (info->space)
- outchar (' ');
-
- {
- register size_t len = 3;
- while (len-- > 0)
- outchar (*string++);
- }
-
- if (info->left)
- while (width-- > 0)
- outchar (' ');
-
- return done;
- }
- }
-
- #define HANDLE_SPECIAL(done, s, info, fpnum) \
- { \
- int more_done = special_ieee754 (s, info, fpnum); \
- if (more_done == -1) \
- return -1; \
- else if (more_done != 0) \
- return done + more_done; \
- }
-
- #endif
-
- #ifndef IS_NEGATIVE
-
- #ifdef __GNUC__
- __inline
- #endif
- static int
- DEFUN(is_neg_ieee754, (num), register LONG_DOUBLE num)
- {
- union ieee754_double u;
-
- u.d = (double) num;
- return u.ieee.negative;
- }
-
- #define IS_NEGATIVE(num) is_neg_ieee754 (num)
-
- #endif
-
- #undef outchar
-
- #include <../sysdeps/generic/printf_fp.c>
-