Fix signed/unsigned warning, size_t for start_index was discarded.

1 files changed, 3 insertions, 3 deletions

diff --git a/src/dump.c b/src/dump.c
index bf3d25f13..72ca9e0c3 100644
--- a/src/dump.c
+++ b/src/dump.c
@@ -364,13 +364,13 @@ write_lineno_record(mrb_state *mrb, mrb_irep *irep, uint8_t* bin)
 }
 
 static int
-mrb_write_section_lineno(mrb_state *mrb, int start_index, uint8_t *bin)
+mrb_write_section_lineno(mrb_state *mrb, size_t start_index, uint8_t *bin)
 {
-  int irep_no;
+  size_t irep_no;
   uint32_t section_size = 0, rlen = 0; /* size of irep record */
   uint8_t *cur = bin;
 
-  if (mrb == NULL || start_index < 0 || start_index >= mrb->irep_len || bin == NULL) {
+  if (mrb == NULL || start_index >= mrb->irep_len || bin == NULL) {
     return MRB_DUMP_INVALID_ARGUMENT;
   }