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c++ - How to find substring from string?

How do I find a substring from the string path "/user/desktop/abc/post/" using C/C++? I want to check if folder "abc" is present or not in that path.

Path is character pointer char *ptr = "/user/desktop/abc/post/";

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Use std::string and find.

std::string str = "/user/desktop/abc/post/";
bool exists = str.find("/abc/") != std::string::npos;

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