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 vote275 views1 answer
Person parametr cpp
C++
1 vote321 views1 answer
Even and odd in c++
C++
10 votes308 views2 answers
Difference between programming and coding
C++
5 votes312 views6 answers
Ngrok http
C++
2 votes263 views1 answer
First missing integer leetcode
C++
1 vote292 views2 answers
Main.cpp:(.text+0x51): undefined reference to `cv::imread(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, int)'
C++
8 votes477 views5 answers
Initialize vector c++
C++
1 vote325 views1 answer
C++ isalphanum
C++
0 vote289 views1 answer
C++ std::find with lambda
C++
0 vote286 views1 answer
Cplusplus
C++