For errors starting at column 0, we must not subtract 1 to avoid underflow.
Signed-off-by: Patrick McHardy <kaber@xxxxxxxxx>
---
src/erec.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
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);
}
--
1.8.4.2
--
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