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Diffstat (limited to 'library/core/src/ffi/c_double.md')
| -rw-r--r-- | library/core/src/ffi/c_double.md | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/library/core/src/ffi/c_double.md b/library/core/src/ffi/c_double.md new file mode 100644 index 000000000..57f453482 --- /dev/null +++ b/library/core/src/ffi/c_double.md @@ -0,0 +1,6 @@ +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. + +[IEEE-754 double-precision float]: https://en.wikipedia.org/wiki/IEEE_754 +[`float`]: c_float |