libc/stdio/_fpmaxtostr.h

   1 /*
   2  * Copyright (C) 2000,2001,2003,2004    Manuel Novoa III <mjn3@codepoet.org>
   3  *
   4  * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
   5  *
   6  * Dedicated to Toni.  See uClibc/DEDICATION.mjn3 for details.
   7  */
   8
   9 #ifndef _FPMAXTOSTR_H
  10 #define _FPMAXTOSTR_H 1
  11
  12 #include <features.h>
  13 #define __need_size_t
  14 #include <stddef.h>
  15 #include <stdint.h>
  16 #include <stdio.h>
  17 #include <printf.h>
  18 #include <sys/types.h>
  19
  20 #ifdef __UCLIBC_HAS_FLOATS__
  21 # include <float.h>
  22 # include <bits/uClibc_fpmax.h>
  23
  24 /* WARNING: Adjust _fp_out_wide() in _vfprintf.c if this changes! */
  25 /* With 32 bit ints, we can get 9 decimal digits per block. */
  26 # define DIGITS_PER_BLOCK     9
  27
  28 # define NUM_DIGIT_BLOCKS   ((DECIMAL_DIG+DIGITS_PER_BLOCK-1)/DIGITS_PER_BLOCK)
  29
  30 /* WARNING: Adjust _fp_out_wide() in _vfprintf.c if this changes! */
  31 /* extra space for '-', '.', 'e+###', and nul */
  32 # define BUF_SIZE  ( 3 + NUM_DIGIT_BLOCKS * DIGITS_PER_BLOCK )
  33
  34 /* psm: why do these internals differ? */
  35 #  ifdef __USE_OLD_VFPRINTF__
  36 typedef void (__fp_outfunc_t)(FILE *fp, intptr_t type, intptr_t len, intptr_t buf);
  37
  38 extern size_t _fpmaxtostr(FILE * fp, __fpmax_t x, struct printf_info *info,
  39                           __fp_outfunc_t fp_outfunc) attribute_hidden;
  40 #  else
  41 typedef size_t (__fp_outfunc_t)(FILE *fp, intptr_t type, intptr_t len, intptr_t buf);
  42
  43 extern ssize_t _fpmaxtostr(FILE * fp, __fpmax_t x, struct printf_info *info,
  44                            __fp_outfunc_t fp_outfunc) attribute_hidden;
  45 #  endif
  46
  47 # endif /* __UCLIBC_HAS_FLOATS__ */
  48 #endif /* _FPMAXTOSTR_H */