无法访问对象属性

Can't access object attribute

本文关键字：属性 对象 访问      更新时间：2023-10-16

我对对象函数有问题。

我有一个以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]++;
}

但是我不断收到这样的错误：

没有为后缀"++"声明"运算符++(int("

或类似的东西：

与"操作员"不匹配！

这些行永远不起作用 

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看法(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的地方。

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