is_nan()

is_nan()

function is_nan(float $num): bool

Checks whether a float is NAN.

Parameters:

• $num (float)

Returns: bool

Availability

• Compiled (AOT): supported by the Elephc code generator.
• eval() (magician interpreter): supported — declarative interpreter builtin (crates/elephc-magician/src/interpreter/builtins/types/is_nan.rs).

No examples yet — check examples/ and showcases/ for usage patterns.

Internals

For how is_nan is implemented in the compiler, see the internals page.