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version 2.111.0

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Function std.checkedint.isNaN

Queries whether a Checked!(T, WithNaN) object is not a number (NaN).

bool isNaN(T)(
  const Checked!(T,WithNaN) x
);

Parameters

NameDescription
x the Checked instance queried

Returns

true if x is a NaN, false otherwise

Example

auto x1 = Checked!(int, WithNaN)();
assert(x1.isNaN);
x1 = 1;
assert(!x1.isNaN);
x1 = x1.init;
assert(x1.isNaN);

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