"find in c++" Code Answer's

find function in c++

By My real name : Vaalarivan P on May 10, 2021

// find function for strings
// my linkedin : https://www.linkedin.com/in/vaalarivan-prasanna-3a07bb203/
str = "Ilayathapathy";
subStr = "thalapathy";
cout << str.find(subStr, 1);  // prints 5 (first occurrence of substring \n
// starting at index 1

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vector.find()

By Cooperative Capuchin on Jul 09, 2020

#include <algorithm>
#include <vector>

if ( std::find(vec.begin(), vec.end(), item) != vec.end() )
   do_this();
else
   do_that();

Source: stackoverflow.com

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std string find character c++

By Wicked Willet on Jun 29, 2020

// string::find
#include <iostream>       // std::cout
#include <string>         // std::string

int main ()
{
  std::string str ("There are two needles in this haystack with needles.");
  std::string str2 ("needle");

  // different member versions of find in the same order as above:
  std::size_t found = str.find(str2);
  if (found!=std::string::npos)
    std::cout << "first 'needle' found at: " << found << '\n';

  found=str.find("needles are small",found+1,6);
  if (found!=std::string::npos)
    std::cout << "second 'needle' found at: " << found << '\n';

  found=str.find("haystack");
  if (found!=std::string::npos)
    std::cout << "'haystack' also found at: " << found << '\n';

  found=str.find('.');
  if (found!=std::string::npos)
    std::cout << "Period found at: " << found << '\n';

  // let's replace the first needle:
  str.replace(str.find(str2),str2.length(),"preposition");
  std::cout << str << '\n';

  return 0;
}

Source: www.cplusplus.com

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find in string c++

By Light Llama on Apr 09, 2020

size_t find (const string& str, size_t pos = 0) const;

Source: www.cplusplus.com

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