uper_encode() with NULL callback to ignore output and return the number of bits
diff --git a/skeletons/per_encoder.c b/skeletons/per_encoder.c
index 17e5fce..86aec4e 100644
--- a/skeletons/per_encoder.c
+++ b/skeletons/per_encoder.c
@@ -4,6 +4,14 @@
static int _uper_encode_flush_outp(asn_per_outp_t *po);
+static int
+ignore_output(const void *data, size_t size, void *app_key) {
+ (void)data;
+ (void)size;
+ (void)app_key;
+ return 0;
+}
+
asn_enc_rval_t
uper_encode(const asn_TYPE_descriptor_t *td,
const asn_per_constraints_t *constraints, const void *sptr,
@@ -20,7 +28,7 @@
po.buffer = po.tmpspace;
po.nboff = 0;
po.nbits = 8 * sizeof(po.tmpspace);
- po.output = cb;
+ po.output = cb ? cb : ignore_output;
po.op_key = app_key;
po.flushed_bytes = 0;