#include <iostream>
#include <vector>
 
using namespace std;
 
vector<string> find_all(string& s, char c)
{
    vector<string> res;
    for (auto p = s.begin(); p!=s.end(); ++p)
        if(*p==c)
            res.push_back(s);
    return res;
}
 
int main()
{
    cout << "Hello world!" << endl << endl;
 
    string m {"Mary has a little lamb"};
 
    char c = 'c';
 
    for (auto p : find_all(m,c))
        if(*p!=c)
            cout << "letter " << c << " bug" << endl;
 
    return 0;
}
 

 
 
-------------- Build: Release in iterator (compiler: GNU GCC Compiler)---------------
 
mingw32-g++.exe -Wall -fexceptions -O2 -std=c++11 -ID:\CPP\id3lib\id3lib-3.8.3\include -c D:\CPP2\iterator\main.cpp -o obj\Release\main.o
D:\CPP2\iterator\main.cpp: In function 'int main()':
D:\CPP2\iterator\main.cpp:22:13: error: no match for 'operator*' in '*p'
Process terminated with status 1 (0 minute(s), 0 second(s))
1 error(s), 0 warning(s) (0 minute(s), 0 second(s))