class Duration
Defined at line 165 of file ../../third_party/abseil-cpp/absl/time/time.h
Duration
The `absl::Duration` class represents a signed, fixed-length amount of time.
A `Duration` is generated using a unit-specific factory function, or is
the result of subtracting one `absl::Time` from another. Durations behave
like unit-safe integers and they support all the natural integer-like
arithmetic operations. Arithmetic overflows and saturates at +/- infinity.
`Duration` should be passed by value rather than const reference.
Factory functions `Nanoseconds()`, `Microseconds()`, `Milliseconds()`,
`Seconds()`, `Minutes()`, `Hours()` and `InfiniteDuration()` allow for
creation of constexpr `Duration` values
Examples:
constexpr absl::Duration ten_ns = absl::Nanoseconds(10);
constexpr absl::Duration min = absl::Minutes(1);
constexpr absl::Duration hour = absl::Hours(1);
absl::Duration dur = 60 * min; // dur == hour
absl::Duration half_sec = absl::Milliseconds(500);
absl::Duration quarter_sec = 0.25 * absl::Seconds(1);
`Duration` values can be easily converted to an integral number of units
using the division operator.
Example:
constexpr absl::Duration dur = absl::Milliseconds(1500);
int64_t ns = dur / absl::Nanoseconds(1); // ns == 1500000000
int64_t ms = dur / absl::Milliseconds(1); // ms == 1500
int64_t sec = dur / absl::Seconds(1); // sec == 1 (subseconds truncated)
int64_t min = dur / absl::Minutes(1); // min == 0
See the `IDivDuration()` and `FDivDuration()` functions below for details on
how to access the fractional parts of the quotient.
Alternatively, conversions can be performed using helpers such as
`ToInt64Microseconds()` and `ToDoubleSeconds()`.
Public Methods
void Duration ()Value semantics.
Defined at line 168 of file ../../third_party/abseil-cpp/absl/time/time.h
void Duration (const Duration & d)Defined at line 176 of file ../../third_party/abseil-cpp/absl/time/time.h
Duration & operator+= (Duration d)Compound assignment operators.
Duration & operator-= (Duration d)Duration & operator*= (int64_t r)Duration & operator*= (double r)Duration & operator/= (int64_t r)Duration & operator/= (double r)Duration & operator%= (Duration rhs)Duration & operator= (const Duration & d)Defined at line 178 of file ../../third_party/abseil-cpp/absl/time/time.h
template <typename T, time_internal::EnableIfIntegral<T> = 0>Duration & operator*= (T r)Overloads that forward to either the int64_t or double overloads above.
Integer operands must be representable as int64_t. Integer division is
truncating, so values less than the resolution will be returned as zero.
Floating-point multiplication and division is rounding (halfway cases
rounding away from zero), so values less than the resolution may be
returned as either the resolution or zero. In particular, `d / 2.0`
can produce `d` when it is the resolution and "even".
Defined at line 197 of file ../../third_party/abseil-cpp/absl/time/time.h
template <typename T, time_internal::EnableIfIntegral<T> = 0>Duration & operator/= (T r)Defined at line 203 of file ../../third_party/abseil-cpp/absl/time/time.h
template <typename T, time_internal::EnableIfFloat<T> = 0>Duration & operator*= (T r)Defined at line 209 of file ../../third_party/abseil-cpp/absl/time/time.h
template <typename T, time_internal::EnableIfFloat<T> = 0>Duration & operator/= (T r)Defined at line 215 of file ../../third_party/abseil-cpp/absl/time/time.h
Friends
Duration Duration (int64_t hi, uint32_t lo)uint32_t Duration (Duration d)int64_t Duration (Duration d)template <typename H>H Duration (H hDuration d)