diff options
Diffstat (limited to 'sysdeps/generic/printf_fphex.c')
| -rw-r--r-- | sysdeps/generic/printf_fphex.c | 64 |
1 files changed, 4 insertions, 60 deletions
diff --git a/sysdeps/generic/printf_fphex.c b/sysdeps/generic/printf_fphex.c index 9e9fd07dfc..53e3254286 100644 --- a/sysdeps/generic/printf_fphex.c +++ b/sysdeps/generic/printf_fphex.c @@ -106,8 +106,8 @@ __printf_fphex (FILE *fp, const char *special = NULL; /* Buffer for the generated number string for the mantissa. The - maximal size for the mantissa is 64 bits. */ - char numbuf[16]; + maximal size for the mantissa is 128 bits. */ + char numbuf[32]; char *numstr; char *numend; int negative; @@ -229,8 +229,6 @@ __printf_fphex (FILE *fp, return done; } - /* We are handling here only 64 and 80 bit IEEE foating point - numbers. */ if (info->is_long_double == 0 || sizeof (double) == sizeof (long double)) { /* We have 52 bits of mantissa plus one implicit digit. Since @@ -281,64 +279,10 @@ __printf_fphex (FILE *fp, exponent = -(exponent - IEEE754_DOUBLE_BIAS); } } +#ifdef PRINT_FPHEX_LONG_DOUBLE else - { - /* The "strange" 80 bit format on ix86 and m68k has an explicit - leading digit in the 64 bit mantissa. */ - unsigned long long int num; - - assert (sizeof (long double) == 12); - - num = (((unsigned long long int) fpnum.ldbl.ieee.mantissa0) << 32 - | fpnum.ldbl.ieee.mantissa1); - - zero_mantissa = num == 0; - - if (sizeof (unsigned long int) > 6) - numstr = _itoa_word (num, numbuf + sizeof numbuf, 16, - info->spec == 'A'); - else - numstr = _itoa (num, numbuf + sizeof numbuf, 16, info->spec == 'A'); - - /* Fill with zeroes. */ - while (numstr > numbuf + (sizeof numbuf - 64 / 4)) - *--numstr = '0'; - - /* We use a full nibble for the leading digit. */ - leading = *numstr++; - - /* We have 3 bits from the mantissa in the leading nibble. - Therefore we are here using `IEEE854_LONG_DOUBLE_BIAS + 3'. */ - exponent = fpnum.ldbl.ieee.exponent; - - if (exponent == 0) - { - if (zero_mantissa) - expnegative = 0; - else - { - /* This is a denormalized number. */ - expnegative = 1; - /* This is a hook for the m68k long double format, where the - exponent bias is the same for normalized and denormalized - numbers. */ -#ifndef LONG_DOUBLE_DENORM_BIAS -# define LONG_DOUBLE_DENORM_BIAS (IEEE854_LONG_DOUBLE_BIAS - 1) + PRINT_FPHEX_LONG_DOUBLE; #endif - exponent = LONG_DOUBLE_DENORM_BIAS + 3; - } - } - else if (exponent >= IEEE854_LONG_DOUBLE_BIAS + 3) - { - expnegative = 0; - exponent -= IEEE854_LONG_DOUBLE_BIAS + 3; - } - else - { - expnegative = 1; - exponent = -(exponent - (IEEE854_LONG_DOUBLE_BIAS + 3)); - } - } /* Look for trailing zeroes. */ if (! zero_mantissa) |