add const
diff --git a/skeletons/OPEN_TYPE.c b/skeletons/OPEN_TYPE.c
index 05b2d80..9417d9a 100644
--- a/skeletons/OPEN_TYPE.c
+++ b/skeletons/OPEN_TYPE.c
@@ -36,7 +36,7 @@
} while(0)
asn_dec_rval_t
-OPEN_TYPE_ber_get(asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td,
+OPEN_TYPE_ber_get(const asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td,
void *sptr, asn_TYPE_member_t *elm, const void *ptr,
size_t size) {
size_t consumed_myself = 0;
@@ -120,7 +120,7 @@
}
asn_dec_rval_t
-OPEN_TYPE_xer_get(asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td,
+OPEN_TYPE_xer_get(const asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td,
void *sptr, asn_TYPE_member_t *elm, const void *ptr,
size_t size) {
size_t consumed_myself = 0;
@@ -283,7 +283,7 @@
#ifndef ASN_DISABLE_PER_SUPPORT
asn_dec_rval_t
-OPEN_TYPE_uper_get(asn_codec_ctx_t *opt_codec_ctx,
+OPEN_TYPE_uper_get(const asn_codec_ctx_t *opt_codec_ctx,
asn_TYPE_descriptor_t *td, void *sptr,
asn_TYPE_member_t *elm, asn_per_data_t *pd) {
asn_type_selector_result_t selected;