BitGenerator support (#499)

Author: flying-sheep

.gitignore

@@ -18,3 +18,6 @@ __pycache__
 
 # Coverage files
 *.lcov
+
+# IDEs
+/.vscode/

Cargo.toml

@@ -29,12 +29,14 @@ num-integer = "0.1"
 num-traits = "0.2"
 ndarray = ">= 0.15, <=0.17"
 pyo3 = { version = "0.29.0", default-features = false, features = ["macros"] }
+rand_core = { version = "0.9.3", default-features = false, optional = true }
 rustc-hash = "2.0"
 
 [dev-dependencies]
 pyo3 = { version = "0.29.0", default-features = false, features = ["auto-initialize"]}
 nalgebra = { version = ">=0.30, <0.35", default-features = false, features = ["std"] }
 criterion = "0.8.2"
+rand = { version = "0.9.1", default-features = false }
 
 [build-dependencies]
 pyo3-build-config = { version = "0.29", features = ["resolve-config"]}

src/lib.rs

@@ -79,6 +79,7 @@ pub mod datetime;
 mod dtype;
 mod error;
 pub mod npyffi;
+pub mod random;
 mod slice_container;
 mod strings;
 mod sum_products;

src/npyffi/mod.rs

@@ -155,6 +155,7 @@ pub mod flags;
 mod npy_common;
 mod numpyconfig;
 pub mod objects;
+pub mod random;
 pub mod types;
 pub mod ufunc;
 
@@ -163,5 +164,6 @@ pub use self::flags::*;
 pub use self::npy_common::*;
 pub use self::numpyconfig::*;
 pub use self::objects::*;
+pub use self::random::*;
 pub use self::types::*;
 pub use self::ufunc::*;

src/npyffi/objects.rs

@@ -1,4 +1,4 @@
-//! Low-Lebel binding for NumPy C API C-objects
+//! Low-Level binding for NumPy C API C-objects
 //!
 //! <https://numpy.org/doc/stable/reference/c-api/types-and-structures.html>
 #![allow(non_camel_case_types)]

src/npyffi/random.rs

@@ -0,0 +1,11 @@
+use std::ffi::c_void;
+
+#[repr(C)]
+#[derive(Debug)]
+pub struct bitgen_t {
+    pub state: *mut c_void,
+    pub next_uint64: unsafe extern "C" fn(*mut c_void) -> super::npy_uint64, //nogil
+    pub next_uint32: unsafe extern "C" fn(*mut c_void) -> super::npy_uint32, //nogil
+    pub next_double: unsafe extern "C" fn(*mut c_void) -> libc::c_double,    //nogil
+    pub next_raw: unsafe extern "C" fn(*mut c_void) -> super::npy_uint64,    //nogil
+}