小编me *_*uff的帖子

I'm having a hard time in realizing how to use the repeated field rule. for example, this is my .proto:

message Test
{
   repeated float   value = 1;
}

now, I'm initialize a new Test object:

Test test = test_init_zero()

Finally, I want to assign some values. For example:

float values[] = { 1.0, 2.2, 5.5, 7.13 }

My question is how can I assign them? is it like

test.value = values
//or
test.value[0] = values[0] //... etc.

and then, …

我有一个 proto 消息定义为：

message SimpleMessage {
repeated int32 number = 1;}

现在，编译后，该字段为 of pb_callback_t，我想编写该函数。（没有 .options 文件）

现在，该函数应该包含在哪里以及包含哪些内容？数据本身存储在哪里以及如何访问它/为其分配新数据？

* 编辑 *

根据@Groo 的回答，这是我试过的代码：

typedef struct {
    int numbers_decoded;
} DecodingState;

bool read_single_number(pb_istream_t *istream, const pb_field_t *field, void **arg)
{
    // get the pointer to the custom state
    DecodingState *state = (DecodingState*)(*arg);

    int32_t value;
    if (!pb_decode_varint32(istream, &value))
    {
        const char * error = PB_GET_ERROR(istream);
        printf("Protobuf error: %s", error);
        return false;
    }

    printf("Decoded successfully: %d", value);
    state->numbers_decoded++;

    return true;
}

int main(void) …