本文整理汇总了C++中std::iostream::tellp方法的典型用法代码示例。如果您正苦于以下问题：C++ iostream::tellp方法的具体用法？C++ iostream::tellp怎么用？C++ iostream::tellp使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类std::iostream的用法示例。
在下文中一共展示了iostream::tellp方法的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: write_stream
std::shared_ptr<Response> request(const std::string& request_type, const std::string& path, std::iostream& content,
const std::map<std::string, std::string>& header = std::map<std::string, std::string>()) {
std::string corrected_path = path;
if (corrected_path == "")
corrected_path = "/";
content.seekp(0, std::ios::end);
auto content_length = content.tellp();
content.seekp(0, std::ios::beg);
boost::asio::streambuf write_buffer;
std::ostream write_stream(&write_buffer);
write_stream << request_type << " " << corrected_path << " HTTP/1.1\r\n";
write_stream << "Host: " << host << "\r\n";
for (auto& h : header) {
write_stream << h.first << ": " << h.second << "\r\n";
}
if (content_length>0)
write_stream << "Content-Length: " << content_length << "\r\n";
write_stream << "\r\n";
if (content_length>0)
write_stream << content.rdbuf();
try {
connect();
boost::asio::write(*socket, write_buffer);
}
catch (const std::exception& e) {
socket_error = true;
throw std::invalid_argument(e.what());
}
return request_read();
}示例2: test_seekable_in_chars
bool test_seekable_in_chars(std::iostream& io)
{
int i; // old 'for' scope workaround.
// Test seeking with ios::cur
for (i = 0; i < data_reps; ++i) {
int j;
for (j = 0; j < chunk_size; ++j)
io.put(narrow_data()[j]);
io.seekp(-chunk_size, BOOST_IOS::cur);
for (j = 0; j < chunk_size; ++j)
if (io.get() != narrow_data()[j])
return false;
io.seekp(-chunk_size, BOOST_IOS::cur);
for (j = 0; j < chunk_size; ++j)
io.put(narrow_data()[j]);
}
// Test seeking with ios::beg
std::streamoff off = 0;
io.seekp(0, BOOST_IOS::beg);
for (i = 0; i < data_reps; ++i, off += chunk_size) {
int j;
for (j = 0; j < chunk_size; ++j)
io.put(narrow_data()[j]);
io.seekp(off, BOOST_IOS::beg);
for (j = 0; j < chunk_size; ++j)
if (io.get() != narrow_data()[j])
return false;
io.seekp(off, BOOST_IOS::beg);
for (j = 0; j < chunk_size; ++j)
io.put(narrow_data()[j]);
}
// Test seeking with ios::end
io.seekp(0, BOOST_IOS::end);
off = io.tellp();
io.seekp(-off, BOOST_IOS::end);
for (i = 0; i < data_reps; ++i, off -= chunk_size) {
int j;
for (j = 0; j < chunk_size; ++j)
io.put(narrow_data()[j]);
io.seekp(-off, BOOST_IOS::end);
for (j = 0; j < chunk_size; ++j)
if (io.get() != narrow_data()[j])
return false;
io.seekp(-off, BOOST_IOS::end);
for (j = 0; j < chunk_size; ++j)
io.put(narrow_data()[j]);
}
return true;
}示例3: test_seekable_in_chunks
bool test_seekable_in_chunks(std::iostream& io)
{
int i; // old 'for' scope workaround.
// Test seeking with ios::cur
for (i = 0; i < data_reps; ++i) {
io.write(narrow_data(), chunk_size);
io.seekp(-chunk_size, BOOST_IOS::cur);
char buf[chunk_size];
io.read(buf, chunk_size);
if (strncmp(buf, narrow_data(), chunk_size) != 0)
return false;
io.seekp(-chunk_size, BOOST_IOS::cur);
io.write(narrow_data(), chunk_size);
}
// Test seeking with ios::beg
std::streamoff off = 0;
io.seekp(0, BOOST_IOS::beg);
for (i = 0; i < data_reps; ++i, off += chunk_size) {
io.write(narrow_data(), chunk_size);
io.seekp(off, BOOST_IOS::beg);
char buf[chunk_size];
io.read(buf, chunk_size);
if (strncmp(buf, narrow_data(), chunk_size) != 0)
return false;
io.seekp(off, BOOST_IOS::beg);
io.write(narrow_data(), chunk_size);
}
// Test seeking with ios::end
io.seekp(0, BOOST_IOS::end);
off = io.tellp();
io.seekp(-off, BOOST_IOS::end);
for (i = 0; i < data_reps; ++i, off -= chunk_size) {
io.write(narrow_data(), chunk_size);
io.seekp(-off, BOOST_IOS::end);
char buf[chunk_size];
io.read(buf, chunk_size);
if (strncmp(buf, narrow_data(), chunk_size) != 0)
return false;
io.seekp(-off, BOOST_IOS::end);
io.write(narrow_data(), chunk_size);
}
return true;
}