我一直收到一个错误,告诉我我没有在if(!buffer.empty)循环下的范围内定义缓冲区。
有没有人对我应该做什么以及我做错了什么有任何建议?
#include <fstream> // this is to import the ifstream and ofstream objects
#include <iostream> // this is to import the cin and cout objects
#include <stack>
using namespace std;
// precondition: theFile refers to a stream that has been opened already
// postcondition: the contents of the file have been read and output to the console
void read_file( ifstream& theFile ) {
stack buffer; // this string will read in the buffer from the file
//while there are still things in the file to read in, read it in and output to console.
while( theFile.eof() == false ) {
buffer.push(theFile);
//cout << buffer << endl; // print the string and a newline
}
if( !buffer.empty() ) {
cout << buffer.top() << endl;
buffer.pop();
}else{
cout << "uh oh!" << endl;
}
}
int main() {
ifstream theInputFile;
theInputFile.open("input.txt"); // Open the file with the name "inputFile.txt".
// pass the file stream into the read_file() function.
read_file( theInputFile );
theInputFile.close();
}
答案 0 :(得分:1)
所以缓冲区是一个堆栈。堆栈什么? stack<int> buffer
可以工作,或者stack<char> buffer
,或者你需要的任何东西。
我无法分辨你需要什么。我注意到你正在推theFile
,这没有意义。这可能有意义:
while( theFile.eof() == false )
{
theFile >> something;
if (! theFile) break; //if we reached eof or had other problems, just quit
buffer.push(something);
}
取决于您要对空白做什么,something
是char, char*
还是string
。