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PORead File, jump lines and store data in array.
 

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  1. PORead File, jump lines and store data in array.
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    <p>I am kind of new to C++ and I have a problem with my program. I have looked for hours and days and even though there are a lot of posts similar to this one, I can't figure out why my program doesn't work.</p> <p>I have a file that contains data in this way.</p> <p>STRING FLOAT FLOAT </p> <p>STRING INT</p> <p>STRING FLOAT FLOAT FLOAT</p> <p>STRING INT INT </p> <p>FLOAT</p> <p>FLOAT ...</p> <p>So the first few lines have string for the first column and number for the rest, and at some point there are just float number. </p> <p>I have managed to get the data up to where all the floats start but I can't figure out how to store the rest of number in an array. (I KNOW IT WOULD BE A LOT EASIER TO DO IT WITH VECTOR BUT I HAVE TO DO IT WITH ARRAYS).</p> <p>This is what I have done. </p> <pre><code>void getData(string *ext, int size) { istringstream is(*ext); float val; is &gt;&gt; val; float *arrVal = new float[10]; // I dont know the size of the Array. if(typeid(val) == typeid(float)) //IM NOT SURE ABOUT THIS AT ALL. I JUST DON'T KNOW HOW TO GET TO THE LINE WHERE THERE ARE NO STRINGS { arr[size] = atof(*ext.c_str()); } // I think this part is why it does not work. int main() { ifstream File("t.txt"); string line; int nLines(0); float *arrayValues = new float[12]; if(!inFile) { cerr &lt;&lt; "Cannot open file." &lt;&lt; endl; return -1; } else { while(getline(File, line)) { getValues(&amp;line, nLines); getPoints(&amp;line); //this function gets the values of the first lines. ++nLines; } } system("pause"); return 0; } </code></pre> <p>So basically I have to figure out how to jump to the line where all the floats start and how to store those in an array. I am sure there is a bunch of errors. I hope you guys get what I am trying to do. I really have looked everywhere and can't find anything.</p> <p>Thank you !!</p>
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    1. COWhat do getPoints(&line) and getValues(&line, nLines) do?
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    2. COYou're right about the errors. This doesn't compile. Kindly post something that does. And do you know what a *reference* is?
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    3. COOh, getPoints should be the getData above, I just changed it the name. The getvalues gets the first lines, the ones that start with the string.
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