1 /* Encode a message using oneof fields */
7 #include "test_helpers.h"
9 int main(int argc, char **argv)
11 uint8_t buffer[OneOfMessage_size];
12 OneOfMessage msg = OneOfMessage_init_zero;
18 fprintf(stderr, "Usage: encode_oneof [number]\n");
21 option = atoi(argv[1]);
23 /* Prefix and suffix are used to test that the union does not disturb
24 * other fields in the same message. */
27 /* We encode one of the 'values' fields based on command line argument */
30 msg.which_values = OneOfMessage_first_tag;
31 msg.values.first = 999;
35 msg.which_values = OneOfMessage_second_tag;
36 strcpy(msg.values.second, "abcd");
40 msg.which_values = OneOfMessage_third_tag;
41 msg.values.third.array_count = 5;
42 msg.values.third.array[0] = 1;
43 msg.values.third.array[1] = 2;
44 msg.values.third.array[2] = 3;
45 msg.values.third.array[3] = 4;
46 msg.values.third.array[4] = 5;
51 stream = pb_ostream_from_buffer(buffer, sizeof(buffer));
53 if (pb_encode(&stream, OneOfMessage_fields, &msg))
55 SET_BINARY_MODE(stdout);
56 fwrite(buffer, 1, stream.bytes_written, stdout);
61 fprintf(stderr, "Encoding failed: %s\n", PB_GET_ERROR(&stream));