使用ifstream读取文件 [英] Reading through file using ifstream

问题描述

我想从文件读取：
文件是多行的，基本上我需要经过每个字。词是任何非空间。

I am trying to read from file: The file is multiline and basically i need to go over each "word". Word being anything non space.

示例输入文件为：

Sample input file would be:

示例文件：

Sample file:

测试2d

字3.5

输入

{


test 13.5 12.3

另一个{

测试145.4

}

}

test 2d
word 3.5
input
{

test 13.5 12.3
another {
testing 145.4
}
}

所以我试过这样的：

ifstream inFile(fajl.c_str(), ifstream::in);

if(!inFile)
{
	cout << "Cannot open " << fajl << endl;
	exit(0);
}

string curr_str;
char curr_ch;
int curr_int;
float curr_float;

cout << "HERE\n";
inFile >> curr_str;

cout << "Read " << curr_str << endl;

问题是当它读取新行时，它刚刚挂起。我读取测试前的一切13.5
但一旦它到达那行，它不做任何事情。
任何人都可以告诉我我做错了什么？
任何更好的建议，如何做到这一点

The problem is when it reads new line it just hangs. I read everything before test 13.5 but once it reaches that line it doesnt do anything. Anyone can tell me what I am doing wrong? Any better suggestion on how to do this???

我本质上需要通过文件，去一个字（非白色字符）在时间。
I

I essentially need to go through file and go one "word" (non white char) at the time. I

感谢

推荐答案

'inFile'但是从'std :: cin'中读取任何特定原因？

You open a file 'inFile' but are reading from the 'std::cin' any particular reason?

/*
 * Open the file.
 */
std::ifstream   inFile(fajl.c_str());   // use input file stream don't.
                                        // Then you don't need explicitly specify
                                        // that input flag in second parameter
if (!inFile)   // Test for error.
{
    std::cerr << "Error opening file:\n";
    exit(1);
}

std::string   word;
while(inFile >> word)  // while reading a word succeeds. Note >> operator with string
{                      // Will read 1 space separated word.
    std::cout << "Word(" << word << ")\n";
}

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