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-rw-r--r--src/diff_driver.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/diff_driver.c b/src/diff_driver.c
index 77b0e9f3e..e82dfa50d 100644
--- a/src/diff_driver.c
+++ b/src/diff_driver.c
@@ -374,7 +374,7 @@ static long diff_context_find(
return -1;
if (out_size > (long)ctxt->line.size)
- out_size = ctxt->line.size;
+ out_size = (long)ctxt->line.size;
memcpy(out, ctxt->line.ptr, (size_t)out_size);
return out_size;