fix: compilation without encoding constants

examples/unix/c11/z_bytes.c

@@ -53,9 +53,8 @@ static void parse_hashmap(kv_pairs_rx_t *kvp, const z_loaned_bytes_t *hashmap);
 static void drop_hashmap(kv_pairs_rx_t *kvp);
 
 int main(void) {
+    // z_owned_encoding_t encoding;
     z_owned_bytes_t payload;
-    z_owned_encoding_t encoding;
-    (void)encoding;
 
     // Number types: uint8, uint16, uint32, uint64, int8, int16, int32, int64, float, double
     uint32_t input_u32 = 123456;
@@ -65,7 +64,7 @@ int main(void) {
     assert(input_u32 == output_u32);
     z_drop(z_move(payload));
     // Corresponding encoding to be used in operations options like `z_put()`, `z_get()`, etc.
-    encoding = ENCODING_ZENOH_UINT32;
+    // encoding = ENCODING_ZENOH_UINT32;
 
     // String, also work with and z_owned_string_t
     const char *input_str = "test";
@@ -76,7 +75,7 @@ int main(void) {
     z_drop(z_move(payload));
     z_drop(z_move(output_string));
     // Corresponding encoding to be used in operations options like `z_put()`, `z_get()`, etc.
-    encoding = ENCODING_ZENOH_STRING;
+    // encoding = ENCODING_ZENOH_STRING;
 
     // Bytes, also work with z_owned_slice_t
     const uint8_t input_bytes[] = {1, 2, 3, 4};
@@ -87,7 +86,7 @@ int main(void) {
     z_drop(z_move(payload));
     z_drop(z_move(output_bytes));
     // Corresponding encoding to be used in operations options like `z_put()`, `z_get()`, etc.
-    encoding = ENCODING_ZENOH_BYTES;  // That's the default value
+    // encoding = ENCODING_ZENOH_BYTES;  // That's the default value
 
     // Writer reader
     uint8_t input_writer[] = {0, 1, 2, 3, 4};

src/api/api.c

@@ -661,11 +661,11 @@ static int8_t _z_encoding_convert_into_string(const z_loaned_encoding_t *encodin
 
 #else
 static int8_t _z_encoding_convert_from_substr(z_owned_encoding_t *encoding, const char *s, size_t len) {
-    return _z_encoding_make(encoding->_val, _Z_ENCODING_ID_DEFAULT, s, len);
+    return _z_encoding_make(&encoding->_val, _Z_ENCODING_ID_DEFAULT, s, len);
 }
 
 static int8_t _z_encoding_convert_into_string(const z_loaned_encoding_t *encoding, z_owned_string_t *s) {
-    _z_string_copy(s->_val, &encoding->schema);
+    _z_string_copy(&s->_val, &encoding->schema);
     return _Z_RES_OK;
 }