I have read other Stackoverflow threads and none of the solutions seem to help.
I cannot link the Boost Asio library in Eclipse Cdt. However, I can link other libraries which makes me think that Eclipse is not the problem.
I am on Xubuntu 14.04. Boost was installed with: sudo apt-get install libboost-all-dev.
This is /usr/include/ :
This is /usr/include/boost:
This is Eclipse Cdt linker:
This is the code I am trying to compile:
//============================================================================
// Name : BoostMain.cpp
// Author :
// Version :
// Copyright : Your copyright notice
// Description : Hello World in C++, Ansi-style
//============================================================================
#include <iostream>
#include<vector>
#include <ostream>
#include <boost/array.hpp>
#include <boost/asio.hpp>
int do_get(std::string &host_, std::string &port_, std::string url_path,
std::ostream &out_, std::vector<std::string> &headers,
unsigned int timeout) {
try {
using namespace boost::asio::ip;
tcp::iostream request_stream;
if (timeout > 0) {
request_stream.expires_from_now(
boost::posix_time::milliseconds(timeout));
}
request_stream.connect(host_, port_);
if (!request_stream) {
return -1;
}
request_stream << "GET " << url_path << " HTTP/1.0\r\n";
request_stream << "Host: " << host_ << "\r\n";
request_stream << "Accept: */*\r\n";
request_stream << "Cache-Control: no-cache\r\n";
request_stream << "Connection: close\r\n\r\n";
request_stream.flush();
std::string line1;
std::getline(request_stream, line1);
if (!request_stream) {
return -2;
}
std::stringstream response_stream(line1);
std::string http_version;
response_stream >> http_version;
unsigned int status_code;
response_stream >> status_code;
std::string status_message;
std::getline(response_stream, status_message);
if (!response_stream || http_version.substr(0, 5) != "HTTP/") {
return -1;
}
if (status_code != 200) {
return (int) status_code;
}
std::string header;
while (std::getline(request_stream, header) && header != "\r")
headers.push_back(header);
out_ << request_stream.rdbuf();
return status_code;
} catch (std::exception &e) {
std::cout << e.what() << std::endl;
return -3;
}
return -1;
}
int main() {
std::cout << "Hello World" << std::endl;
// std::string host, port;
// std::vector<std::string> headers;
// std::string url = "https://www.google.com/";
// int output = do_get(host, port, url, std::cout, headers, 1000);
// std::cout << "Out:" << output << std::endl << std::endl;
// std::cout << host << std::endl << port << std::endl << std::endl;
//std::cout << stream;
return 0;
}
This is the error message:
**** Build of configuration Debug for project BoostMain ****
make all
Building file: ../src/BoostMain.cpp
Invoking: GCC C++ Compiler
g++ -O0 -g3 -Wall -c -fmessage-length=0 -MMD -MP -MF"src/BoostMain.d" -MT"src/BoostMain.d" -o "src/BoostMain.o" "../src/BoostMain.cpp"
Finished building: ../src/BoostMain.cpp
Building target: BoostMain
Invoking: GCC C++ Linker
g++ -L/usr/include -o "BoostMain" ./src/BoostMain.o -lboost_system -lboost_thread -lboost_asio
/usr/bin/ld: cannot find -lboost_asio
collect2: error: ld returned 1 exit status
make: *** [BoostMain] Error 1
**** Build Finished ****
Boost is surely installed because trying to reinstall boost leads to "libboost-all-dev is already the newest version." What is the best way to resolve this problem?
