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  1. #include <iostream>
  2. #include <regex>
  3. #include <string>
  4. using namespace std;
  5.  
  6. int main() {
  7.     auto input = "+1--12*123/+1234"s;
  8.     smatch sm;
  9.  
  10.     if(regex_search(input, sm, regex{ "(?:^|\\b\\W)([+-]?\\d+)" })) {
  11.  
  12.         do {
  13.             cout << sm[1] << endl;
  14.             input = sm.suffix().str();
  15.         } while(regex_search(input, sm, regex{ "(?:^\\W|\\b\\W)([+-]?\\d+)" }));
  16.     }
  17. }
Success #stdin #stdout 0s 3556KB
comments (?)
stdin
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Standard input is empty
stdout
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+1
-12
123
+1234
https://ideone.com/uE4dGr
language:
C++14 (gcc 8.3)
created:
8 years ago
visibility:
public

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