mwrap_aref: quiet -Wshorten-64-to-32 warning

An "int" length is enough for the source location length, as
it's not going to exceed PATH_MAX by much.

1 files changed, 1 insertions, 1 deletions

diff --git a/ext/mwrap/mwrap.c b/ext/mwrap/mwrap.c
index 7455c54..2b946b1 100644
--- a/ext/mwrap/mwrap.c
+++ b/ext/mwrap/mwrap.c
@@ -826,7 +826,7 @@ static VALUE cSrcLoc;
 static VALUE mwrap_aref(VALUE mod, VALUE loc)
 {
         const char *str = StringValueCStr(loc);
-        long len = RSTRING_LEN(loc);
+        int len = RSTRING_LENINT(loc);
         struct src_loc *k = 0;
         uintptr_t p;
         struct cds_lfht_iter iter;