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int i;<br />
while (cin &gt;&gt;&nbsp;i) {<br />
&nbsp; &nbsp; // do stuff with i<br />
}<br />
<br />

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int i;
while (cin >> i) {
    // do stuff with i
}



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i.e what yonat is saying is that the standard library is capable of reading the ASCII data and converting the digits into integers (or other numerical types) &nbsp;so don't read the data in as ASCII characters, read it in as the numerical type you want.<br />

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i.e what yonat is saying is that the standard library is capable of reading the ASCII data and converting the digits into integers (or other numerical types)  so don't read the data in as ASCII characters, read it in as the numerical type you want.


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<div class="content wysiwyg-content">
I have a text file with a header row of variables and the rest as numbers in columns. &nbsp;I can open the file using getline but it reads the number rows as a string. &nbsp;What I then have to do is break each string of row numbers down by looking for tab spaces, converting the string to a number, and then saving it into an array. &nbsp;Can somebody please tell me the easiest way to open a text file of numbers with various rows and columns into an array?<br />
<br />
Thanks
</div>
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I have a text file with a header row of variables and the rest as numbers in columns.  I can open the file using getline but it reads the number rows as a string.  What I then have to do is break each string of row numbers down by looking for tab spaces, converting the string to a number, and then saving it into an array.  Can somebody please tell me the easiest way to open a text file of numbers with various rows and columns into an array?

Thanks

Open Text File of Numbers into an Array

C++ is an intermediate-level general-purpose programming language, not to be confused with C or C#. It was developed as a set of extensions to the C programming language to improve type-safety and add support for automatic resource management, object-orientation, generic programming, and exception handling, among other features.