| Message ID | 1389346294-7242-3-git-send-email-kaber@trash.net |
|---|---|
| State | Accepted |
| Headers | show |
diff --git a/src/erec.c b/src/erec.c index 7451d94..a157d2f 100644 --- a/src/erec.c +++ b/src/erec.c @@ -138,7 +138,8 @@ void erec_print(FILE *f, const struct error_record *erec) end = 0; for (l = erec->num_locations - 1; l >= 0; l--) { loc = &erec->locations[l]; - for (i = loc->first_column - 1; i < loc->last_column; i++) + for (i = loc->first_column ? loc->first_column - 1 : 0; + i < loc->last_column; i++) buf[i] = l ? '~' : '^'; end = max(end, loc->last_column); }
For errors starting at column 0, we must not subtract 1 to avoid underflow. Signed-off-by: Patrick McHardy <kaber@trash.net> --- src/erec.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)