Conventions used

There are a number of text conventions used throughout this book.

Code in text: Indicates code words in text, database table names, folder names, file names, file extensions, path names, dummy URLs, user input, and Twitter handles. Here is an example: "The insert() method takes an initializer_list and calls the private function _insert():"

A block of code is set as follows:

int main() {
    Frac f{ 5, 3 };
    cout << format("Frac: {}\n", f);
}

When we wish to draw your attention to a particular part of a code block, the relevant lines or items are set in bold:

for(uint64_t i{ 2 }; i < n / 2; ++i) {
    if(n % i == 0) return false;
}

Any command-line input or output is written as follows:

$ ./producer-consumer
Got 0 from the queue
Got 1 from the queue
Got 2 from the queue
finished!

Bold: Indicates a new term, an important word, or words that you see onscreen. For example, words in menus or dialog boxes appear in the text like this. Here is an example: "Select System info from the Administration panel."

Tips or important notes

Appear like this.