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std.datetime.date.valid - multiple declarations
Function valid
Returns whether the given value is valid for the given unit type when in a time point. Naturally, a duration is not held to a particular range, but the values in a time point are (e.g. a month must be in the range of 1 - 12 inclusive).
bool valid(string units)
(
int value
) pure nothrow @nogc @safe
if (units == "months" || units == "hours" || units == "minutes" || units == "seconds");
Parameters
| Name | Description |
|---|---|
| units | The units of time to validate. |
| value | The number to validate. |
Example
assert(valid!"hours"(12));
assert(!valid!"hours"(32));
assert(valid!"months"(12));
assert(!valid!"months"(13));
Function valid
Returns whether the given day is valid for the given year and month.
bool valid(string units)
(
int year,
int month,
int day
) pure nothrow @nogc @safe
if (units == "days");
Parameters
| Name | Description |
|---|---|
| units | The units of time to validate. |
| year | The year of the day to validate. |
| month | The month of the day to validate (January is 1). |
| day | The day to validate. |
Example
assert(valid!"days"(2016, 2, 29));
assert(!valid!"days"(2016, 2, 30));
assert(valid!"days"(2017, 2, 20));
assert(!valid!"days"(2017, 2, 29));
Authors
License
Copyright © 1999-2022 by the D Language Foundation | Page generated by ddox.