Question

Which of the following is not a reserve keyword in C++
mutable
default
readable
volatile​

Answer 1

Answer:

Volatile is not a reserved keyword

Answer 2

Answer:

'readable' is not a reserve keyword in C++.

Explanation:

• A reserved word is a word that cannot be used as an identifier, like the name of a variable or function as it is "reserved from use".
• A reserved word may have no meaning.
• There are a total of 95 reserved words in C++ which may be conveniently placed into several groups.
• In the first group, we have keywords that are also present in the C programming language and have been carried over into C++. Total 32 of such key words are there.
• Another 30 reserved words that were not in C, are new to C++ language.
• There are 11  reserved words that are not essential in C++ when the standard ASCII character set is being used. They have been added to provide more readable alternatives for a few of the C++ operators.
• They also facilitate programming with character sets that lack characters required by C++.
• mutable, default, volatile these all are reserve keywords in C++.

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