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3.7.4 C++ Named Operators ¶In C++, there are eleven keywords which are simply alternate spellings of operators normally written with punctuation. These keywords are treated as such even in the preprocessor. They function as operators in ‘#if’, and they cannot be defined as macros or poisoned. In C, you can request that those keywords take their C++ meaning by including iso646.h. That header defines each one as a normal object-like macro expanding to the appropriate punctuator.
These are the named operators and their corresponding punctuators:
Named Operator Punctuatorand && and_eq &= bitand & bitor | compl ~ not ! not_eq != or || or_eq |= xor ^ xor_eq ^=
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