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std::chrono::duration::zero(3) | C++ Standard Libary | std::chrono::duration::zero(3) |
NAME¶
std::chrono::duration::zero - std::chrono::duration::zero
Synopsis¶
static constexpr duration zero(); (until C++20)
static constexpr duration zero() noexcept; (since C++20)
Returns a zero-length duration.
If the representation rep of the duration requires some other implementation
to
return a zero-length duration, std::chrono::duration_values can be
specialized to
return the desired value.
Parameters¶
(none)
Return value¶
returns duration(std::chrono::duration_values<rep>::zero())
Example¶
// Run this code
#include <chrono>
#include <ratio>
int main() {
static_assert((std::chrono::hours::zero() ==
std::chrono::nanoseconds::zero()) &&
(std::chrono::duration<short, std::nano>::zero() ==
std::chrono::duration<int, std::deci>::zero()) &&
(std::chrono::duration<short, std::deca>::zero() ==
std::chrono::duration<long, std::exa>::zero()) &&
(std::chrono::duration<long, std::atto>::zero().count() ==
std::chrono::duration<float, std::exa>::zero().count()));
}
See also¶
min returns the special duration value min
[static] (public static member function)
max returns the special duration value max
[static] (public static member function)
2022.07.31 | http://cppreference.com |