Reputation: 63
I'm creating a custom language parser in C++, I'm struggling with a runtime error, where I have a std::vector<std::string>
member of a class with a constructor.
The full error is:
The procedure entry point
_ZSt28__throw_bad_array_new_lengthv could no be located
in the dynamic link library
"path_to_executable"
This error is throw whenever I try to use std::vector::push_back in my code, but shouldn't std::vector be a dynamically sized data container? Why is this error occurring?
Some of my codes:
//"lib/cursor.h"
#ifndef T_CURSOR
#define T_CURSOR
#include <iostream>
struct Cursor
{
private:
std::string input;
int inputLength;
char getChar(int p);
public:
char character;
int pos;
int line;
int column;
bool eof;
bool lineBreak;
Cursor(std::string i);
void walk(bool back = false);
void walkTimes(int times, bool back = false);
void move(int toPos);
void skipIgnore();
std::string toString();
};
#endif
//"lib/cursor.cpp"
#include <sstream>
#include "cursor.h"
Cursor::Cursor(std::string i)
{
this->input = i;
this->inputLength = i.length();
this->character = i.at(0);
this->pos = 0;
this->line = 0;
this->column = 0;
this->eof = false;
this->lineBreak = false;
}
char Cursor::getChar(int pos)
{
if (pos < 0 || pos >= this->inputLength)
{
return EOF;
}
return this->input.at(pos);
}
void Cursor::walk(bool back)
{
if (back)
{
this->pos--;
this->column--;
if (this->lineBreak)
{
this->line--;
this->column = 0;
for (int i = this->pos - 1; i >= 0; i--)
{
if (this->getChar(i) == '\n')
break;
this->column++;
}
}
}
else
{
this->pos++;
this->column++;
if (this->lineBreak)
{
this->line++;
this->column = 0;
}
}
this->character = this->getChar(this->pos);
this->eof = this->character == EOF;
this->lineBreak = this->character == '\n';
}
void Cursor::walkTimes(int times, bool back)
{
for (int i = 0; i < times; i++)
{
this->walk(back);
}
}
void Cursor::move(int pos)
{
if (pos < 0)
pos = 0;
if (pos > this->inputLength - 1)
pos = this->inputLength - 1;
this->pos = 0;
this->character = this->input.at(0);
this->line = 0;
this->column = 0;
this->eof = false;
this->lineBreak = this->character == '\n';
while (this->pos < pos)
this->walk();
}
void Cursor::skipIgnore()
{
while (this->character == ' ' ||
this->character == '\n' ||
this->character == '\t')
this->walk();
if (this->character == '#')
{
while (!this->eof && this->character != '\n')
this->walk();
}
while (this->character == ' ' ||
this->character == '\n' ||
this->character == '\t')
this->walk();
}
std::string Cursor::toString()
{
std::stringstream ss("");
ss << "(P:" << this->pos;
ss << " L:" << this->line;
ss << " C:" << this->column;
ss << " \"" << this->character << "\")";
return ss.str();
}
//"lib/lexer.h"
#ifndef T_LEXER
#define T_LEXER
#include <iostream>
#include <vector>
#include "cursor.h"
class Lexer
{
private:
std::string input;
protected:
Cursor cursor;
std::vector<std::string> matchStack;
std::vector<std::vector<Cursor>> cursorStack;
public:
Lexer(std::string input);
std::string getStr(int pos);
void setStr(int pos, std::string str);
Cursor getCursorStart(int pos);
Cursor getCursorEnd(int pos);
bool match(std::string str);
};
#endif
//"lib/lexer.cpp"
#include "lexer.h"
Lexer::Lexer(std::string input) : cursor(input)
{
this->input = input;
}
std::string Lexer::getStr(int pos)
{
if (this->matchStack.size() == 0)
return this->input;
while (pos < 0)
pos += this->matchStack.size();
while (pos >= this->matchStack.size())
pos -= this->matchStack.size();
return this->matchStack[pos];
}
void Lexer::setStr(int pos, std::string str)
{
if (this->matchStack.size() == 0)
return;
while (pos < 0)
pos += this->matchStack.size();
while (pos >= this->matchStack.size())
pos -= this->matchStack.size();
this->matchStack[pos] = str;
}
Cursor Lexer::getCursorStart(int pos)
{
if (this->cursorStack.size() == 0)
return Cursor(this->input);
while (pos < 0)
pos += this->cursorStack.size();
while (pos >= this->cursorStack.size())
pos -= this->cursorStack.size();
return this->cursorStack[pos][0];
}
Cursor Lexer::getCursorEnd(int pos)
{
if (this->cursorStack.size() == 0)
return Cursor(this->input);
while (pos < 0)
pos += this->cursorStack.size();
while (pos >= this->cursorStack.size())
pos -= this->cursorStack.size();
return this->cursorStack[pos][1];
}
bool Lexer::match(std::string str)
{
this->cursor.skipIgnore();
const std::string ss = this->input.substr(this->cursor.pos, str.length());
if (ss == str)
{
this->matchStack.push_back(ss); // Getting error if I include this line
const Cursor startCursor = this->cursor;
this->cursor.walkTimes(str.length());
const Cursor endCursor = this->cursor;
this->cursorStack.push_back({startCursor, endCursor});
return true;
}
return false;
}
//"test.cpp"
#include "lib/cursor.h"
#include "lib/lexer.h"
#include <iostream>
using namespace std;
int main()
{
string input = "Something to test";
Lexer lexer = Lexer(input);
cout << "Start" << endl;
cout << lexer.match("Something") << endl;
return 0;
}
I'm compiling my program with g++ on Windows: g++ test.cpp lib/cursor.cpp lib/lexer.cpp -o test.exe
Upvotes: 3
Views: 5623
Reputation: 651
I got the same error when compiling in command line using g++. But it works well in code blocks. To solve this problem try compiling with -static-libstdc++
. It should solve the problem.
Upvotes: 9