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What does a question mark (?) in C mean?
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Question-mark definition A mark of punctuation (?) put after a sentence, word, etc. to indicate a direct question, and also used to express doubt, uncertainty, etc.; interrogation mark. Something that is unknown, mysterious, or doubtful.
The inverted question mark ¿ is written before the first letter of an interrogative sentence or clause to indicate that a question follows. It is a rotated form of the standard symbol "?" recognized by speakers of other languages written with the Latin script.
a punctuation mark (?) placed at the end of a sentence to indicate a question.
? is the first symbol of the ?: ternary operator.
a = (b==0) ? 1 : 0;
a will have the value 1 if b is equal to 0, and 0 otherwise.
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