How to Compare Last n Characters of A String to Another String in C

Question

Imagine that I have two strings, one of them is a url like \"/sdcard/test.avi\" and the other one is\"/sdcard/test.mkv\". I want to write an if statement that looks whether

Answer 1

In pure C you can only resort to manual compare:

int endswith(const char* withwhat, const char* what)
{
    int l1 = strlen(withwhat);
    int l2 = strlen(what);
    if (l1 > l2)
        return 0;

    return strcmp(withwhat, what + (l2 - l1)) == 0;
}