From WikiChip
and_eq macro - <iso646.h> - C
< c‎ | iso646.h

The and_eq macro, which is part of <iso646.h>, is a convenient object-like macro name that expands to the &= operator. The macro was added in Normative Addendum 1 in an effort to provide support for international character sets that might not have the & symbols.

Synopsis[edit]

#include <iso646.h>
#define and_eq &=

Description[edit]

The and_eq object-like macro expands to the &= operator.

Example[edit]

#include <iso646.h>

int main ()
{
    int x = 4;
    x and_eq 6;
    return 0;
}