Cpp string find all occurence

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); // first occurrence
    while(nPos != string::npos)
    {
        count++;
        nPos = s.find("hello", nPos + 1);
    }

    cout << count;
};

Source: stackoverflow.com

Cpp string find all occurence

string str,sub; // str is string to search, sub is the substring to search for

vector<size_t> positions; // holds all the positions that sub occurs within str

size_t pos = str.find(sub, 0);
while(pos != string::npos)
{
    positions.push_back(pos);
    pos = str.find(sub,pos+1);
}

Source: stackoverflow.com

Similar codes

0 vote151 views1 answer
C++ print to standard error
C++
3 votes129 views1 answer
What is a variable in cpp
C++
0 vote134 views1 answer
Automatic legend matlab
C++
0 vote145 views1 answer
Memset array bool
C++
7 votes98 views2 answers
Initialization list c++
C++
16 votes139 views6 answers
Sort vector c++
C++
0 vote132 views1 answer
Bash script add another user
C++
-6 votes131 views3 answers
Explicit in c++ meaning
C++
15 votes136 views2 answers
Calculate factorial
C++
3 votes134 views2 answers
C++ vector element search
C++