Parse string containing numbers into integers

Question

How can I parse numbers 4648, 4649, 4650 from this string into three int variables without using regex.h?

* SEARCH 4648 4649 4650
a3 OK SEARCH completed

Possible duplicate of [How to parse a string to an int in C++?](http://stackoverflow.com/questions/194465/how-to-parse-a-string-to-an-int-in-c) — Come Raczy, Nov 18 '16 at 22:38

Thomas Matthews · Accepted Answer · 2016-11-18T21:43:58.897

0

Try using std::istringstream:

static const std:string    test_string = "* SEARCH 4648 4649 4650";
char asterisk;
std::string label;
unsigned int value1, value2, value3;
std::istringstream input(test_string);
input >> asterisk >> label >> value1 >> value2;

Edit 1:
For inputing more than one number:

input >> asterisk >> label;
std::vector<unsigned int> numbers;
unsigned int value;
while (input >> value)
{
  numbers.push_back(value);
}

edited Nov 18 '16 at 21:43

answered Nov 18 '16 at 21:12

Thomas Matthews

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I can't determinate how many numbers there will be. The string can be like this "* SEARCH 454 446 456 45645 46465" – John Doe Nov 18 '16 at 21:16
If you don't know how many numbers, then use `std::vector` and a while loop, such as `while (input >> value) { number_vector.push_back(value);}`. – Thomas Matthews Nov 18 '16 at 21:21
Can you add all code please? – John Doe Nov 18 '16 at 21:40
Added code for inputting more than one value. – Thomas Matthews Nov 18 '16 at 21:44

Parse string containing numbers into integers

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