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bug fixed with negative BCD values

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zimoch
2018-06-18 17:03:18 +02:00
parent 18a0e54033
commit 9481b95b30
1 changed files with 16 additions and 15 deletions
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31
src/BCDConverter.cc
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@ -44,50 +44,51 @@ printLong(const StreamFormat& fmt, StreamBuffer& output, long value)
ssize_t i;
unsigned long prec = fmt.prec < 0 ? 2 * sizeof(value) : fmt.prec; // number of nibbles
unsigned long width = (prec + (fmt.flags & sign_flag ? 2 : 1)) / 2;
unsigned long val = value;
if (fmt.width > width) width = fmt.width;
if (fmt.flags & sign_flag && value < 0 && prec > 0)
{
neg = true;
value = -value;
val = -value;
}
output.append('\0', width);
if (fmt.flags & alt_flag)
{
// least significant byte first (little endian)
i = -width;
while (width && prec)
{
width--;
bcd = value%10;
bcd = val%10;
if (--prec)
{
--prec;
value /= 10;
bcd |= (value%10)<<4;
value /= 10;
val /= 10;
bcd |= (val%10)<<4;
val /= 10;
}
output.append(bcd);
output[i++] = bcd;
}
if (width)
output.append('\0', width);
if (neg) output[-1] |= 0xf0;
}
else
{
// most significant byte first (big endian)
output.append('\0', width);
if (neg) output[-(long)width] |= 0xf0;
if (neg) output[-(long)width] = 0xf0;
i = 0;
while (width && prec)
{
width--;
bcd = value%10;
bcd = val%10;
if (--prec)
{
--prec;
value /= 10;
bcd |= (value%10)<<4;
value /= 10;
val /= 10;
bcd |= (val%10)<<4;
val /= 10;
}
output[--i]=bcd;
output[--i] |= bcd;
}
}
return true;