相关疑难解决方法(0)

我需要将整个文件读入内存并将其放在C++中std::string.

如果我把它读成a char[],答案很简单:

std::ifstream t;
int length;
t.open("file.txt");      // open input file
t.seekg(0, std::ios::end);    // go to the end
length = t.tellg();           // report location (this is the length)
t.seekg(0, std::ios::beg);    // go back to the beginning
buffer = new char[length];    // allocate memory for a buffer of appropriate dimension
t.read(buffer, length);       // read the whole file into the buffer
t.close();                    // close file handle

// ... Do stuff with buffer here ...

现在,我想做同样的事情,但是使用a std::string而不是a char[] …

如何在文件中删除(不替换某些)任意字符？

#include <fstream>

int main()
{
    std::fstream FileStream("MyFile.txt", ios_base::in | ios_base::out | ios_base::binary);
    // For the sake of argument, MyFile.txt already has stuff in it.

    FileStream.seekg(5);
    FileStream.remove(); // Something like this.
}