diff options
Diffstat (limited to 'stdio-common/vfprintf-process-arg.c')
| -rw-r--r-- | stdio-common/vfprintf-process-arg.c | 22 |
1 files changed, 17 insertions, 5 deletions
diff --git a/stdio-common/vfprintf-process-arg.c b/stdio-common/vfprintf-process-arg.c index 24c9125f9f..8c0fcbcf78 100644 --- a/stdio-common/vfprintf-process-arg.c +++ b/stdio-common/vfprintf-process-arg.c @@ -186,11 +186,17 @@ LABEL (unsigned_number): /* Unsigned number of base BASE. */ bool octal_marker = (prec <= number_length && number.word != 0 && alt && base == 8); - prec = MAX (0, prec - (workend - string)); + /* At this point prec_inc is the additional bytes required for the + specificed precision. It is 0 if the precision would not have + required additional bytes i.e. the number of input digits is more + than the precision. It is greater than zero if the precision is + more than the number of digits without grouping (precision only + considers digits). */ + unsigned int prec_inc = MAX (0, prec - (workend - string)); if (!left) { - width -= number_length + prec; + width -= number_length + prec_inc; if (number.word != 0 && alt && (base == 16 || base == 2)) /* Account for 0X, 0x, 0B or 0b hex or binary marker. */ @@ -221,7 +227,7 @@ LABEL (unsigned_number): /* Unsigned number of base BASE. */ Xprintf_buffer_putc (buf, spec); } - width += prec; + width += prec_inc; Xprintf_buffer_pad (buf, L_('0'), width); if (octal_marker) @@ -237,6 +243,8 @@ LABEL (unsigned_number): /* Unsigned number of base BASE. */ } else { + /* Perform left justification adjustments. */ + if (is_negative) { Xprintf_buffer_putc (buf, L_('-')); @@ -263,9 +271,13 @@ LABEL (unsigned_number): /* Unsigned number of base BASE. */ if (octal_marker) --width; - width -= workend - string + prec; + /* Adjust the width by subtracting the number of bytes + required to represent the number with grouping characters + (NUMBER_LENGTH) and any additional bytes required for + precision. */ + width -= number_length + prec_inc; - Xprintf_buffer_pad (buf, L_('0'), prec); + Xprintf_buffer_pad (buf, L_('0'), prec_inc); if (octal_marker) Xprintf_buffer_putc (buf, L_('0')); |