diff options
Diffstat (limited to 'stdio-common/printf_fphex.c')
| -rw-r--r-- | stdio-common/printf_fphex.c | 67 |
1 files changed, 24 insertions, 43 deletions
diff --git a/stdio-common/printf_fphex.c b/stdio-common/printf_fphex.c index d442b56..ac939ec 100644 --- a/stdio-common/printf_fphex.c +++ b/stdio-common/printf_fphex.c @@ -217,29 +217,19 @@ __printf_fphex (FILE *fp, 52 bits are representable without rest using hexadecimal digits we use only the implicit digits for the number before the decimal point. */ - if (sizeof (unsigned long int) > 6) - { - unsigned long int num; + unsigned long long int num; - num = (((unsigned long int) fpnum.dbl.ieee.mantissa0) << 32 - | fpnum.dbl.ieee.mantissa1); + num = (((unsigned long long int) fpnum.dbl.ieee.mantissa0) << 32 + | fpnum.dbl.ieee.mantissa1); - zero_mantissa = num == 0; + zero_mantissa = num == 0; - numstr = _itoa_word (num, numbuf + sizeof numbuf, 16, - info->spec == 'A'); - } + if (sizeof (unsigned long int) > 6) + numstr = _itoa_word (num, numbuf + sizeof numbuf, 16, + info->spec == 'A'); else - { - unsigned long long int num; - - num = (((unsigned long long int) fpnum.dbl.ieee.mantissa0) << 32 - | fpnum.dbl.ieee.mantissa1); - - zero_mantissa = num == 0; - - numstr = _itoa (num, numbuf + sizeof numbuf, 16, info->spec == 'A'); - } + numstr = _itoa (num, numbuf + sizeof numbuf, 16, + info->spec == 'A'); /* Fill with zeroes. */ while (numstr > numbuf + (sizeof numbuf - 13)) /* 52 ÷ 4 = 13 */ @@ -249,7 +239,8 @@ __printf_fphex (FILE *fp, exponent = fpnum.dbl.ieee.exponent; - if (exponent != 0 && exponent < IEEE754_DOUBLE_BIAS) + if ((exponent != 0 && exponent < IEEE754_DOUBLE_BIAS) + || (exponent == 0 && !zero_mantissa)) { expnegative = 1; exponent = abs (exponent - IEEE754_DOUBLE_BIAS); @@ -265,31 +256,20 @@ __printf_fphex (FILE *fp, { /* The "strange" 80 bit format on ix86 and m68k has an explicit leading digit in the 64 bit mantissa. */ - assert (sizeof (long double) == 12); + unsigned long long int num; - if (sizeof (unsigned long int) > 6) - { - unsigned long int num; + assert (sizeof (long double) == 12); - num = (((unsigned long int) fpnum.dbl.ieee.mantissa0) << 32 - | fpnum.dbl.ieee.mantissa1); + num = (((unsigned long long int) fpnum.ldbl.ieee.mantissa0) << 32 + | fpnum.ldbl.ieee.mantissa1); - zero_mantissa = num == 0; + zero_mantissa = num == 0; - numstr = _itoa_word (num, numbuf + sizeof numbuf, 16, - info->spec == 'A'); - } + if (sizeof (unsigned long int) > 6) + numstr = _itoa_word (num, numbuf + sizeof numbuf, 16, + info->spec == 'A'); else - { - unsigned long long int num; - - num = (((unsigned long long int) fpnum.ldbl.ieee.mantissa0) << 32 - | fpnum.ldbl.ieee.mantissa1); - - zero_mantissa = num == 0; - - numstr = _itoa (num, numbuf + sizeof numbuf, 16, info->spec == 'A'); - } + numstr = _itoa (num, numbuf + sizeof numbuf, 16, info->spec == 'A'); /* We use a full nibble for the leading digit. */ leading = *numstr++; @@ -301,7 +281,8 @@ __printf_fphex (FILE *fp, /* We have 3 bits from the mantissa in the leading nibble. */ exponent = fpnum.ldbl.ieee.exponent - 3; - if (exponent != 0 && exponent < IEEE854_LONG_DOUBLE_BIAS) + if ((exponent != 0 && exponent < IEEE854_LONG_DOUBLE_BIAS) + || (exponent == 0 && !zero_mantissa)) { expnegative = 1; exponent = abs (exponent - IEEE854_LONG_DOUBLE_BIAS); @@ -414,10 +395,10 @@ __printf_fphex (FILE *fp, outchar (info->spec == 'A' ? 'X' : 'x'); outchar (leading); - if (!zero_mantissa || precision != 0 || info->alt) + if (!zero_mantissa || precision > 0 || info->alt) outchar (decimal); - if (!zero_mantissa || precision != 0) + if (!zero_mantissa || precision > 0) { PRINT (numstr, MIN (numend - numstr, precision)); if (precision > numend - numstr) |