Standard C++ Library Reference ISO/IEC (VERSION3)

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<iso646.h>
[Added with Amendment 1]
Include the standard header <iso646.h> to provide readable alternatives to certain operators
or punctuators. The standard header <iso646.h> is available even in a freestanding
implementation.
#define and && [keyword in C++]
#define and_eq &= [keyword in C++]
#define bitand & [keyword in C++]
#define bitor | [keyword in C++]
#define compl ~ [keyword in C++]
#define not ! [keyword in C++]
#define not_eq != [keyword in C++]
#define or || [keyword in C++]
#define or_eq |= [keyword in C++]
#define xor ^ [keyword in C++]
#define xor_eq ^= [keyword in C++]
and
#define and && [keyword in C++]
The macro yields the operator &&.
and_eq
#define and_eq &= [keyword in C++]
The macro yields the operator &=.
bitand
#define bitand & [keyword in C++]
The macro yields the operator &.