发生错误无法弄清楚 [英] Error occured can't figure out

问题描述

以下是代码段

Here is the code snippet

v1=fopen("Input.txt","r");
    getline(v1,c);
    while ( v1 )
    {
        ch += c;
        getline(v1,c);
    }

我收到错误

没有重载函数的实例getline匹配参数列表

参数类型是：（FILE *，std :: string）

而v1是文件指针而c是字符串.....

I get an error
"no instance of overloaded function "getline" matches the argument list
argument types are: (FILE *, std::string)"
while the v1 is file pointer and c is the string.....

推荐答案

如果我是你，我会仔细查看 fopen （打开文件的函数） C运行时库）和 getline （从 C ++运行时库中读取一行文本的函数）实际做。



基本上你必须选择一个IO模型（基于C的FILE指针/函数的API或C ++的流/运算符）基于/函数的API）并且不要混合两者。

If I were you I'd look very carefully at what fopen (the function that opens a file in the C runtime library) and getline (the function that reads a line of text from a stream in the C++ runtime library) actually do.

Basically you have to pick an IO model (either C's FILE pointer/function based API or C++'s stream/operator/function based API) and don't mix the two.

你试过这个：



http://www.cplusplus.com/forum/beginner/11304/ [ ^ ]

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