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다음 프로그램이 원본에서 축소되었습니다. 실행시 분할 오류가 발생합니다. ArithmeticUnaryExpression
으로 24 행을 제거하면 프로그램이 더 이상 충돌하지 않습니다. 세분화 오류를 제거하려면 어떻게해야합니까?중첩 된 부스트에 대한 분할 오류 :: 변형
#include <boost/config/warning_disable.hpp>
#include <boost/spirit/home/x3.hpp>
#include <boost/spirit/home/x3/support/ast/variant.hpp>
#include <boost/spirit/include/qi_expect.hpp>
#include <boost/spirit/home/x3/directive/expect.hpp>
#include <iostream>
#include <string>
namespace wctl_parser {
namespace x3 = boost::spirit::x3;
namespace ascii = x3::ascii;
namespace qi = boost::spirit::qi;
using x3::ulong_;
using x3::lexeme;
//--- Ast structures
struct ArithmeticUnaryExpression;
using AtomicProp = std::string;
using ArithmeticExpression = x3::variant<
x3::forward_ast<ArithmeticUnaryExpression>,
unsigned long
>;
struct ArithmeticUnaryExpression {
std::string op;
ArithmeticExpression operand;
};
using Expression = x3::variant<
ArithmeticExpression
>;
template <typename T> auto rule = [](const char* name = typeid(T).name()) {
struct _{};
return x3::rule<_, T> {name};
};
template <typename T> auto as = [](auto p) { return rule<T>() = p; };
//--- Rules
x3::rule<struct aTrivRule, ArithmeticExpression> aTriv("aTriv");
x3::rule<struct exprRule, Expression> expr("expression");
auto const aTriv_def = rule<ArithmeticExpression>("aTriv")
= ulong_
// | '(' > expr > ')'
;
auto const primitive = rule<Expression>("primitive")
= aTriv
;
auto const expr_def
= primitive
;
BOOST_SPIRIT_DEFINE(aTriv)
BOOST_SPIRIT_DEFINE(expr)
auto const entry = x3::skip(ascii::space) [expr];
} //End namespace
int main() {
std::string str("prop");
namespace x3 = boost::spirit::x3;
wctl_parser::Expression root;
auto iter = str.begin();
auto end = str.end();
bool r = false;
r = parse(iter, end, wctl_parser::entry, root);
if (r) {
std::cout << "Parses OK:" << std::endl << str << std::endl;
if (iter != end) std::cout << "Partial match" << std::endl;
std::cout << std::endl << "----------------------------\n";
}
else {
std::cout << "!! Parsing failed:" << std::endl << str << std::endl << std::endl << "----------------------------\n";
}
return 0;
}