Substring in c++

Cpp substring

#include <iostream>
#include <string>

using namespace std;

void cpp_strings()
{
    string unformatted_full_name { "StephenHawking" };

    string first_name = unformatted_full_name.substr(0, 7);
    // string first_name { unformatted_full_name, 0, 7 };
    string last_name = unformatted_full_name.substr(7, 7);
    string formatted_full_name = first_name + last_name;

    formatted_full_name.insert(7, " ");
    cout << formatted_full_name;
}

int main()
{
    cpp_strings();
    return 0;
}

Splice string in c++

string str1 = "Apples are red";
string str2 = str1.substr(11, 3); // "red"
string str3 = str1.substr(0, 6); // "Apples"

Source: tutorialspoint.com

Substring in c++

#include <string>
#include <iostream>

int main() {
  std::string innerPlanets{"Mercury Venus Earth Mars"};

  // Copy 5 characters from position 8
  std::cout << innerPlanets.substr(8, 5) << "\n";

  size_t begin = innerPlanets.find("Earth");
  // Copy characters from "Earth" to the end of the string
  std::cout << innerPlanets.substr(begin);
}

Source: cppbyexample.com

Substring function in c++

string sub_string=main_string.substr(first_pos_of_the_substring_from_main_string,length_of_the_substring_from_main_string_starting_from_the_first_position

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