avoid comparison between signed and unsigned

parent 1636ad41
...@@ -333,7 +333,7 @@ main(int argc, char **argv) ...@@ -333,7 +333,7 @@ main(int argc, char **argv)
char last_code_line[1024] = { 0 }; char last_code_line[1024] = { 0 };
#ifndef ENABLE_READLINE #ifndef ENABLE_READLINE
int last_char; int last_char;
int char_index; size_t char_index;
#else #else
char *history_path; char *history_path;
#endif #endif
......
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