Learning Modern C++ for Finance by Daniel Hanson

Author:Daniel Hanson
Language: eng
Format: epub, pdf
Publisher: O'Reilly Media, Inc.
Published: 2023-06-29T00:00:00+00:00

ymd = std::chrono::year{ 2022 } / std::chrono::month{11} / std::chrono::day{14};

Different orders can be used, along with integer types, as long as the first argument is obvious. For yyyy/mm/dd format, putting

ymd = std::chrono::year{ 2022 } / 11 / 14;

would yield the same result, with the compiler interpreting the 11 and 14 as unsigned types. mm/dd/yyyy format can also be used:

auto mdy = std::chrono::November / 14 / 2022;

In this case, the 14 is recognized as unsigned, and the year as an int. In std::chrono, month and day types can be cast to unsigned, while a year can only be cast to an int. The examples above are non-exhaustive, and a more comprehensive list can be found on the GitHub date library site {1} (ibid).

Note that the output stream operator is overloaded for year_month_day, so any of the above can be output to the console with cout. For example,

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