diff options
Diffstat (limited to 'libc/stdio-common/printf-parsemb.c')
| -rw-r--r-- | libc/stdio-common/printf-parsemb.c | 42 |
1 files changed, 30 insertions, 12 deletions
diff --git a/libc/stdio-common/printf-parsemb.c b/libc/stdio-common/printf-parsemb.c index 2bdb5e65a..a45ac74e0 100644 --- a/libc/stdio-common/printf-parsemb.c +++ b/libc/stdio-common/printf-parsemb.c @@ -87,12 +87,15 @@ __parse_one_specmb (const UCHAR_T *format, size_t posn, n = read_int (&format); - if (n > 0 && *format == L_('$')) + if (n != 0 && *format == L_('$')) /* Is positional parameter. */ { ++format; /* Skip the '$'. */ - spec->data_arg = n - 1; - *max_ref_arg = MAX (*max_ref_arg, n); + if (n != -1) + { + spec->data_arg = n - 1; + *max_ref_arg = MAX (*max_ref_arg, n); + } } else /* Oops; that was actually the width and/or 0 padding flag. @@ -160,10 +163,13 @@ __parse_one_specmb (const UCHAR_T *format, size_t posn, /* The width argument might be found in a positional parameter. */ n = read_int (&format); - if (n > 0 && *format == L_('$')) + if (n != 0 && *format == L_('$')) { - spec->width_arg = n - 1; - *max_ref_arg = MAX (*max_ref_arg, n); + if (n != -1) + { + spec->width_arg = n - 1; + *max_ref_arg = MAX (*max_ref_arg, n); + } ++format; /* Skip '$'. */ } } @@ -177,9 +183,13 @@ __parse_one_specmb (const UCHAR_T *format, size_t posn, } } else if (ISDIGIT (*format)) - /* Constant width specification. */ - spec->info.width = read_int (&format); + { + int n = read_int (&format); + /* Constant width specification. */ + if (n != -1) + spec->info.width = n; + } /* Get the precision. */ spec->prec_arg = -1; /* -1 means none given; 0 means explicit 0. */ @@ -196,10 +206,13 @@ __parse_one_specmb (const UCHAR_T *format, size_t posn, { n = read_int (&format); - if (n > 0 && *format == L_('$')) + if (n != 0 && *format == L_('$')) { - spec->prec_arg = n - 1; - *max_ref_arg = MAX (*max_ref_arg, n); + if (n != -1) + { + spec->prec_arg = n - 1; + *max_ref_arg = MAX (*max_ref_arg, n); + } ++format; } } @@ -213,7 +226,12 @@ __parse_one_specmb (const UCHAR_T *format, size_t posn, } } else if (ISDIGIT (*format)) - spec->info.prec = read_int (&format); + { + int n = read_int (&format); + + if (n != -1) + spec->info.prec = n; + } else /* "%.?" is treated like "%.0?". */ spec->info.prec = 0; |