Prism.languages.cpp = Prism.languages.extend('c', {
    'class-name': {
        pattern: /(\b(?:class|enum|struct)\s+)\w+/,
        lookbehind: true
    },
    'keyword': /\b(?:alignas|alignof|asm|auto|bool|break|case|catch|char|char16_t|char32_t|class|compl|const|constexpr|const_cast|continue|decltype|default|delete|do|double|dynamic_cast|else|enum|explicit|export|extern|float|for|friend|goto|if|inline|int|int8_t|int16_t|int32_t|int64_t|uint8_t|uint16_t|uint32_t|uint64_t|long|mutable|namespace|new|noexcept|nullptr|operator|private|protected|public|register|reinterpret_cast|return|short|signed|sizeof|static|static_assert|static_cast|struct|switch|template|this|thread_local|throw|try|typedef|typeid|typename|union|unsigned|using|virtual|void|volatile|wchar_t|while)\b/,
    'number': {
        pattern: /(?:\b0b[01']+|\b0x(?:[\da-f']+\.?[\da-f']*|\.[\da-f']+)(?:p[+-]?[\d']+)?|(?:\b[\d']+\.?[\d']*|\B\.[\d']+)(?:e[+-]?[\d']+)?)[ful]*/i,
        greedy: true
    },
    'operator': />>=?|<<=?|->|([-+&|:])\1|[?:~]|[-+*/%&|^!=<>]=?|\b(?:and|and_eq|bitand|bitor|not|not_eq|or|or_eq|xor|xor_eq)\b/,
    'boolean': /\b(?:true|false)\b/
});

Prism.languages.insertBefore('cpp', 'string', {
    'raw-string': {
        pattern: /R"([^()\\ ]{0,16})\([\s\S]*?\)\1"/,
        alias: 'string',
        greedy: true
    }
});