C++ keywords: or_eq

 

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Keywords

alignas (C++11) alignof (C++11) and and_eq asm auto bitand bitor bool break case catch char char8_t (C++20) char16_t (C++11) char32_t (C++11) class compl concept (C++20) const consteval (C++20) constexpr (C++11) constinit (C++20) const_cast continue co_await (C++20) co_return (C++20) co_yield (C++20) decltype (C++11) default delete	do double dynamic_cast else enum explicit export extern false float for friend goto if inline int long mutable namespace new noexcept (C++11) not not_eq nullptr (C++11) operator or or_eq private protected public register	reinterpret_cast requires (C++20) return short signed sizeof static static_assert (C++11) static_cast struct switch template this thread_local (C++11) throw true try typedef typeid typename union unsigned using virtual void volatile wchar_t while xor xor_eq
Identifiers with special meaning
final (C++11) override (C++11)	import (C++20) module (C++20)

 

Usage

• alternative operators: as an alternative for |=

Example

Run this code

#include <iostream>
#include <bitset>
 
using bin = std::bitset<8>;
 
void show(bin z, const char* s, int n)
{
    if (n == 0) std::cout << "┌───────────┬──────────┐\n";
    if (n <= 2) std::cout << "│ " <<s<< " │ " <<z<<" │\n";
    if (n == 2) std::cout << "└───────────┴──────────┘\n";
}
 
int main()
{
    bin x{ "01011010" }; show(x, "x        ", 0);
    bin y{ "00111100" }; show(y, "y        ", 1);
    x or_eq y;           show(x, "x or_eq y", 2);
}

Output:

┌───────────┬──────────┐
│ x         │ 01011010 │
│ y         │ 00111100 │
│ x or_eq y │ 01111110 │
└───────────┴──────────┘