Question

错误 1 error C2664: “std::basic_ifstream<char,std::char_traits<char>>::basic_ifstream

vc6.0复制到vs2013出现的错误，怎么改？错误 1 error C2664: “std::basic_ifstream<char,std::char_traits<char>>::basic_ifstream(const std::basic_ifstream<char,std::char_traits<char>> &)”: 无法将参数 1 从“std::_String_iterator<std::_String_val<std::_Simple_types<char>>>”转换为“const char *” c:\users\administrator\documents\visual studio 2013\projects\consoleapplication2\consoleapplication2\源.cpp 170 1 ConsoleApplication2
错误 2 error C2664: “std::basic_ifstream<char,std::char_traits<char>>::basic_ifstream(const std::basic_ifstream<char,std::char_traits<char>> &)”: 无法将参数 1 从“std::_String_iterator<std::_String_val<std::_Simple_types<char>>>”转换为“const char *” c:\users\administrator\documents\visual studio 2013\projects\consoleapplication2\consoleapplication2\源.cpp 918 1 ConsoleApplication2

Answer 1

ifstream fp(filename.c_str());

Answer 2

Vc到vs要把加上using namespace std;

Answer 3

ifstream fp(filename);