Determines if a quantity point is a nan.
Synopsis
Declared in <mp‐units/math.h>
template<
auto R,
auto PO,
typename Rep>
requires requires(quantity<R, Rep> q) { isnan(q); }
[[nodiscard]]
constexpr
bool
isnan(quantity_point<R, PO, Rep> const& a) noexcept;
Return Value
bool: Whether the quantity point is a NaN or not.
Parameters
Name |
Description |
a: |
Quantity point to analyze. |
a |
A quantity point |
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