c++ - Converting from string to int with a function -


I'm quite new to programming and I'm trying to use a function that changes the string to an int Gives. My idea with this function was to collect every number in the string and store it in another string, then convert it to an integer.

The function value 0 returns.

What is this function to return the confirmed number which should not be 0 

  int getNumberFromString (int changed number, string text tutorial) {for (int i = 0; i & lt; textToConvert.size (); i ++) {string collectNumbers; Int j = 0; If (textconvert [ii] == '1' || textconvert [i] == '2' || textonvert [i] == '3' || textonvert [i] == '4' || textconvert [i] Text == '5' || | Textconvert [i] == '0') {Collection number [J] = Text tutorial [i]; J ++; } If (Submit Signs.) (== 0) {Return False; } And if (Score)) (SEC) (gt; 0) {stringstream Convert (Combined Number); If (! (Rupees & gt; & nbsp; converted number)) {convertedNumber = 0; } Return changed number; }}}}    
 
 
 Perhaps you should use only the library function?  
  int store (const string and str, size_t * idx = 0, int base = 10);

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