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C++ check substring

C++ string contains

if (string1.find(string2) != std::string::npos) {
    std::cout << "found!" << '\n';
}

5

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.
}

3

Source: stackoverflow.com

C++ check substring

if (s1.find(s2) != std::string::npos) {
    std::cout << "found!" << '\n';
}

0

Source: stackoverflow.com

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