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I have two strings which I'd like to compare: String and String:. Is there a library function that would return true when passed these two strings, but false for say String and OtherString?
To be precise, I want to know whether one string is a prefix of another.
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Java String startsWith() method is used to check the prefix of string. It verifies if given string starts with argument string or not. startsWith() method is overloaded method and has two forms: boolean startsWith(String str) – returns true if the str is a prefix of the String.
The startswith() method returns True if a string starts with the specified prefix(string). If not, it returns False .
A prefix of a string S is any leading contiguous part of S. A suffix of the string S is any trailing contiguous part of S. For example, "c" and "cod" are prefixes, and "ty" and "ity" are suffixes of the string "codility".
Use std::mismatch. Pass in the shorter string as the first iterator range and the longer as the second iterator range. The return is a pair of iterators, the first is the iterator in the first range and the second, in the second rage. If the first is end of the first range, then you know the the short string is the prefix of the longer string e.g.
std::string foo("foo"); std::string foobar("foobar"); auto res = std::mismatch(foo.begin(), foo.end(), foobar.begin()); if (res.first == foo.end()) { // foo is a prefix of foobar. } If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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