Question

我遇到了对象功能问题。

我有一个地图作为属性的对象：

#ifndef PARSER_H
#define PARSER_H

#include <iostream>
#include <fstream>
#include <map>
#include <string>
#include "../stopwords/stopwords.h"
#include "../porter/porter.h"


class Parser{

private:
    unsigned int cant_documentos;
    unsigned int cant_terminos;
    std::map<std::string,short> dicc_stopwords;
    std::map<std::string,unsigned int> hash_frecuencias_globales;
    std::map<std::string,std::map<std::string,unsigned int> >hash_frecuencias_locales;
    std::map<std::string,std::string> hash_apariciones_unicas;
public:
    Parser();

public:
    void destroy();


public:     

    void agregar_termino_a_hash(std::string termino,std::string nombre_archivo);
public:

    void cargar_terminos(std::string linea,std::string nombre_archivo);

};

#endif //PARSER_H







#include <iostream>
#include <fstream>
#include <map>
#include <stdlib.h>
#include <string>
#include "parser.h"
#include <string.h>





using std::map;
using std::string;
using std::ifstream;
using std::cout;
using std::endl;
using std::ofstream;




void Parser::agregar_termino_a_hash(string termino,string nombre_archivo){

unsigned int size = termino.size();

if(dicc_stopwords[termino] == 1) return; //No entra porque es un stopword

unsigned int ultimo_char = stem((char*)termino.c_str(),0,size-1); 

termino = termino.substr(0,ultimo_char+1);


if(!((*hash_frecuencias_locales)[termino])){
    hash_frecuencias_locales[termino] = 1;
    if(hash_frecuencias_globales[termino]){
        (*hash_apariciones_unicas).erase(termino);
        hash_frecuencias_globales[termino]++;
    }
    else{
        cant_terminos++;
        hash_frecuencias_globales[termino] = 1;
        (*hash_apariciones_unicas)[termino] = nombre_archivo;
    }
}else
    hash_frecuencias_locales[termino]++;

}

但我不断收到这样的错误：

没有'operator ++（int）'为postfix'++'

声明

或类似的东西：

在...中与'operator！'不匹配。

由于

Answer 1

此行永远不会起作用

if(!((*hash_frecuencias_locales)[termino])){
  hash_frecuencias_locales[termino] = 1;

有了这个定义：

std::map<std::string,std::map<std::string,unsigned int> >hash_frecuencias_locales;

我的编译器同意我的意见（在您的文件中进行了一些清理后......）

$ g++ test_map_pb.cpp
test_map_pb.cpp: In member function ‘void Parser::agregar_termino_a_hash(std::string, std::string)’:
test_map_pb.cpp:63:64: erreur: ‘stem’ was not declared in this scope
 unsigned int ultimo_char = stem((char*)termino.c_str(),0,size-1);
                                                                ^
test_map_pb.cpp:68:7: erreur: no match for ‘operator*’ (operand type is ‘std::map<std::basic_string<char>, std::map<std::basic_string<char>, unsigned int> >’)
 if(!((*hash_frecuencias_locales)[termino])){
       ^
test_map_pb.cpp:69:39: erreur: no match for ‘operator=’ (operand types are ‘std::map<std::basic_string<char>, std::map<std::basic_string<char>, unsigned int> >::mapped_type {aka std::map<std::basic_string<char>, unsigned int>}’ and ‘int’)

尝试做一个最小的例子，你会发现你的问题不在你想象的地方。

无法访问对象属性

1 个答案: