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-rw-r--r--editors/diff.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/editors/diff.c b/editors/diff.c
index cf14b1d03..e0adcee59 100644
--- a/editors/diff.c
+++ b/editors/diff.c
@@ -658,8 +658,8 @@ static bool diff(FILE* fp[2], char *file[2])
}
for (j = 0; j < 2; j++)
- for (k = v[j].a; k < v[j].b; k++)
- nonempty |= (ix[j][k+1] - ix[j][k] != 1);
+ for (k = v[j].a; k <= v[j].b; k++)
+ nonempty |= (ix[j][k] - ix[j][k - 1] != 1);
vec = xrealloc_vector(vec, 6, ++idx);
memcpy(vec[idx], v, sizeof(v));