我正在尝试std::array使用boost :: spirit的最新版本x3(包含在boost 1.54中)将数字列表解析为固定大小的容器.由于std::array具有必要的功能,因此它被检测为容器,但缺少插入功能,使其不兼容.这是我想要完成的一个简短示例:
#include <boost/spirit/home/x3.hpp>
#include <array>
#include <iostream>
#include <string>
namespace x3 = boost::spirit::x3;
namespace ascii = boost::spirit::x3::ascii;
typedef std::array<double, 3> Vertex;
int main(int, char**) {
using x3::double_;
using ascii::blank;
std::string input = "3.1415 42 23.5";
auto iter = input.begin();
auto vertex = x3::rule<class vertex, Vertex>{} =
double_ >> double_ >> double_;
Vertex v;
bool const res = x3::phrase_parse(iter, input.end(), vertex, blank, v);
if (!res || iter != input.end()) return EXIT_FAILURE;
std::cout << "Match:" …Run Code Online (Sandbox Code Playgroud)