count بایت ها را از بافر داده شده در جریان بنویسید.
جزئیات
پارامترها
stream
جریانی که باید به آن بنویسید.
buf
بافری برای خواندن از.
count
تعداد بایت هایی برای نوشتن
برمی گرداند
درست در صورت موفقیت، نادرست در خطای نوشتن.
محتوا و نمونه کدها در این صفحه مشمول پروانههای توصیفشده در پروانه محتوا هستند. جاوا و OpenJDK علامتهای تجاری یا علامتهای تجاری ثبتشده Oracle و/یا وابستههای آن هستند.
تاریخ آخرین بهروزرسانی 2025-07-29 بهوقت ساعت هماهنگ جهانی.
[[["درک آسان","easyToUnderstand","thumb-up"],["مشکلم را برطرف کرد","solvedMyProblem","thumb-up"],["غیره","otherUp","thumb-up"]],[["اطلاعاتی که نیاز دارم وجود ندارد","missingTheInformationINeed","thumb-down"],["بیشازحد پیچیده/ مراحل بسیار زیاد","tooComplicatedTooManySteps","thumb-down"],["قدیمی","outOfDate","thumb-down"],["مشکل ترجمه","translationIssue","thumb-down"],["مشکل کد / نمونهها","samplesCodeIssue","thumb-down"],["غیره","otherDown","thumb-down"]],["تاریخ آخرین بهروزرسانی 2025-07-29 بهوقت ساعت هماهنگ جهانی."],[],[],null,["# tuningfork::VectorStream Struct Reference\n\ntuningfork::VectorStream\n========================\n\n`#include \u003cprotobuf_nano_util.h\u003e`\n\nA view on the vector provided in `vec`.\n\nSummary\n-------\n\nNo ownership is taken.\n\n| Details ||\n|------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| Parameters | |-------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | `vec` | Example usage: ```css+lasso std::vector\u003cuint8_t\u003e v; VectorStream str {&v, 0}; pb_ostream_t stream = {VectorStream::Write, &str, SIZE_MAX, 0}; pb_encode(&stream, ...); ``` | |\n\n| ### Public attributes ||\n|-------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------|\n| [it](#structtuningfork_1_1_vector_stream_1a15e8cd3ec11280c7e7060563a197d195) | `size_t` The current position in the vector while decoding or encoding. |\n| [vec](#structtuningfork_1_1_vector_stream_1a3fc88833828997802f63f25ecfc9596e) | `std::vector\u003c uint8_t \u003e *` A vector of bytes that must be valid while `Read` or `Write` are called. |\n\n| ### Public static functions ||\n|-------------------------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------|\n| [Read](#structtuningfork_1_1_vector_stream_1add5291b48820efba50df20aed1acf095)`(pb_istream_t *stream, uint8_t *buf, size_t count)` | `bool` Read `count` bytes from the stream to the given buffer. |\n| [Write](#structtuningfork_1_1_vector_stream_1a9a25c5eebeb2335dfcb069e247784cf8)`(pb_ostream_t *stream, const uint8_t *buf, size_t count)` | `bool` Write `count` bytes from the given buffer to the stream. |\n\nPublic attributes\n-----------------\n\n### it\n\n```scdoc\nsize_t tuningfork::VectorStream::it\n``` \nThe current position in the vector while decoding or encoding. \n\n### vec\n\n```scdoc\nstd::vector\u003c uint8_t \u003e * tuningfork::VectorStream::vec\n``` \nA vector of bytes that must be valid while `Read` or `Write` are called.\n\nThe vector will be resized as needed by `Write`.\n\nPublic static functions\n-----------------------\n\n### Read\n\n```scdoc\nbool tuningfork::VectorStream::Read(\n pb_istream_t *stream,\n uint8_t *buf,\n size_t count\n)\n``` \nRead `count` bytes from the stream to the given buffer.\n\n\u003cbr /\u003e\n\n| Details ||\n|-------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| Parameters | |----------|------------------------------| | `stream` | The stream to read from. | | `buf` | The buffer to write to. | | `count` | The number of bytes to read. | |\n| **Returns** | true if successful, false on a read error. |\n\n### Write\n\n```gdscript\nbool tuningfork::VectorStream::Write(\n pb_ostream_t *stream,\n const uint8_t *buf,\n size_t count\n)\n``` \nWrite `count` bytes from the given buffer to the stream.\n\n\u003cbr /\u003e\n\n| Details ||\n|-------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| Parameters | |----------|-------------------------------| | `stream` | The stream to write to. | | `buf` | The buffer to read from. | | `count` | The number of bytes to write. | |\n| **Returns** | true if successful, false on a write error. |"]]
