c++ - Is string::compare reliable to determine alphabetical order? -

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Simply put, if the input is always in the same case (here, the short case), and if the character is always ASCII , Can use string: can compare two strings to determine the alphabet sequence?

Thus, if the result is 0 with stringA.compare (stringB) , then that same, if it is negative, string A stringb comes alphabetically, and if It's positive, what comes after string A? According to the docs at cplusplus.com,

The Member Function 0 returns if the comparison material is made.

If all the characters compare the same, then a negative value if the first character that does not match is less in the object than the comparison string, and a positive value in the opposite case.

Therefore it will sort the strings in ASCII sequence, which will be alphabetical for English strings (without any diacritical digits or otherwise extended characters)


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