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std::string str; // some value is assigned What is the difference between str.empty() and str[0] == '\0'? c++ string shareimprove this question edited Sep 28 at 14:3 string_variable[0] is required to return the null character if the string is empty. That way there is no undefined behavior and the comparison still works if the string is truly empty. However you could have a string that starts with a null character ("\0Hi there") which returns true even though it is not empty. If you really want to know if it's empty, use empty(). Pre-C++11 The difference is that if the string is empty then string_variable[0] has undefined behavior; There is no index 0 unless the string is const-qualified. If the string is const qualified then it will return a null character. string_variable.empty() on the other hand returns true if the string is empty, and false if it is not; the behavior won't be undefined.

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I was reminded of this dilemma while reading Dick Cavett’s new, often funny book, Talk Show. Cavett describes what it was like to watch 2008 Presidential candidate John McCain read speeches from a teleprompter. “Something in him tightens. His voice even goes up several notes, and he seems bogus in a way he never does in other settings. Like an actor stuck with a part he’s not comfortable in.”

Does this sound like you? Or perhaps your boss? Does all of the personality suddenly drain out of the words? The usually bright leader suddenly becomes a mannequin? You are not alone, but you do need to fix the problem.

First, you have to love the words ???????? the message has to ring true to you. Many a leader has fallen short trying to sell a product they didn’t believe in. (Generally I also find good readers make better speakers. The love of words or the turn of the phrase and the connection between words and what they can mean for an audience brings out the best in a person giving even a rather mundane talk.)

Second, go with bullet points instead of a full script whenever possible. You will make it your own, in the moment, and the message will flow much more comfortably. If you know the material, the word choice will come to you just as it would in conversation and the transition points will seem much more natural as you follow your simple road map.

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