all substrings of a string c++ code example
Example 1: find all occurrences of a substring in a string c++
#include <string>
#include <iostream>
using namespace std;
int main()
{
string s("hello hello");
int count = 0;
size_t nPos = s.find("hello", 0);
while(nPos != string::npos)
{
count++;
nPos = s.find("hello", nPos + 1);
}
cout << count;
};
Example 2: c++ substring
#include <iostream>
#include <string>
int main ()
{
std::string str="We think in generalities, but we live in details.";
std::string str2 = str.substr (3,5);
std::size_t pos = str.find("live");
std::string str3 = str.substr (pos);
std::cout << str2 << ' ' << str3 << '\n';
return 0;
}
Example 3: string substr c++
s.substr(pos,len);
Example 4: find substring in string c++
std::string parentstring = "Hello Agnosticdev, I love Tutorials";
std::string substring = "Agnosticdev";
auto index = parentstring.find(substring);