# Type Alias std::os::raw::c_double

1.1.0 · source ·

    pub type c_double = c_double;

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Equivalent to C’s `double` type.

This type will almost always be `f64`, which is guaranteed to be an IEEE 754 double-precision float in Rust. That said, the standard technically only guarantees that it be a floating-point number with at least the precision of a `float`, and it may be `f32` or something entirely different from the IEEE-754 standard.