我正在尝试将文件内容(仅包含整数)读入2D表中,但是在close语句中遇到了分段错误错误。
vector<vector<int>> litTableauInt(string nom_fichier, int nb_colonnes) {
int n;
int i=0;
vector<int> colonne(nb_colonnes);
vector<vector<int>> t(nb_colonnes,vector<int>(1));
ifstream fichier(nom_fichier);
while(fichier>>n){
t[i][0]=n;
for(int j=1; j<nb_colonnes; j++){
fichier>>n;
t[i][j]=n;
}
t.push_back(colonne);
i++;
}
fichier.close();
return t;
}
我使用gbd命令(文件file_name,run,bt)找到了错误
Program received signal SIGSEGV, Segmentation fault.
0x00007ffff74dac01 in __GI___libc_free (mem=0x55555576f1f0) at malloc.c:3123
(gdb) bt
#0 0x00007ffff74dac01 in __GI___libc_free (mem=0x55555576f1f0) at malloc.c:3123
#1 0x00007ffff74c12fe in _IO_new_fclose (fp=0x55555576f1f0) at iofclose.c:77
#2 0x00007ffff7affd98 in std::__basic_file<char>::close() () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#3 0x00007ffff7b3f75b in std::basic_filebuf<char, std::char_traits<char> >::close() () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#4 0x00007ffff7b418a5 in std::basic_ifstream<char, std::char_traits<char> >::~basic_ifstream() () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#5 0x00005555555554ef in litTableauInt (nom_fichier="donnees/tonnages_des_dechets_bacs_jaunes.txt", nb_colonnes=13) at dechets-tableau.cpp:24
#6 0x0000555555555614 in testLitTableauInt () at dechets-tableau.cpp:42
#7 0x0000555555556178 in main () at dechets-tableau.cpp:96
答案 0 :(得分:0)
您把我放在正确的轨道上,当我声明2D表(第5行)时,我已经颠倒了行和列,应该是:
vector<vector<int>> t(1,vector<int>(nb_colonnes));