c++ check if string contains substring
string str ("There are two needles in this haystack.");
string str2 ("needle");
if (str.find(str2) != string::npos) {
//.. found.
}
c++ check if string contains substring
string str ("There are two needles in this haystack.");
string str2 ("needle");
if (str.find(str2) != string::npos) {
//.. found.
}
c++ check substring
if (s1.find(s2) != std::string::npos) {
std::cout << "found!" << 'n';
}
c++ find string in string
#include <iostream>
#include <string>
#include <algorithm>
#include <functional>
int main()
{
std::string in = "Lorem ipsum dolor sit amet, consectetur adipiscing elit,"
" sed do eiusmod tempor incididunt ut labore et dolore magna aliqua";
std::string needle = "pisci";
auto it = std::search(in.begin(), in.end(),
std::boyer_moore_searcher(
needle.begin(), needle.end()));
if(it != in.end())
std::cout << "The string " << needle << " found at offset "
<< it - in.begin() << 'n';
else
std::cout << "The string " << needle << " not foundn";
}
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