RetroSearch Browse

Home - News ( United States | United Kingdom | Italy | Germany ) - Football scores

Showing content from https://cplusplus.com/reference/regex/regex_iterator/operator!=/ below:

public member function

<regex>

std::regex_iterator::operator!=

bool operator!=(const regex_iterator& rhs) const;

Compare regex_iterator for inequality

Returns true if rhs does not compare equal to the regex_iterator object.

Two regex_iterator compare equal if any of these is true:

They are both end-of-sequence iterators
One was constructed as or assigned to a copy of the other and are now pointing to the same match.
They were both constructed with equivalent arguments for first, last and flags, both use the same regex object, and both now point to the same match (their internal match_results objects compare equal).

Parameters

rhs: Another regex_iterator object of the same type.

Return valuetrue if both regex_iterator do not compare equal. false otherwise.

Example

// regex_iterator example
#include <iostream>
#include <string>
#include <regex>

int main ()
{
  std::string s ("this subject has a submarine as a subsequence");
  std::regex e ("\\b(sub)([^ ]*)");   // matches words beginning by "sub"

  std::regex_iterator<std::string::iterator> rit ( s.begin(), s.end(), e );
  std::regex_iterator<std::string::iterator> rend;

  while (rit!=rend) {
    std::cout << rit->str() << std::endl;
    ++rit;
  }

  return 0;
}

Output:

subject
submarine
subsequence