Auto-generated commit

Author: stdlib-bot

CHANGELOG.md

@@ -4,12 +4,13 @@
 
 <section class="release" id="unreleased">
 
-## Unreleased (2026-06-17)
+## Unreleased (2026-06-18)
 
 <section class="features">
 
 ### Features
 
+-   [`6e2e1fe`](https://github.com/stdlib-js/stdlib/commit/6e2e1feeedc61cb7fe91652568033cfbe9de276e) - update `fft/base/fftpack` TypeScript declarations [(#12946)](https://github.com/stdlib-js/stdlib/pull/12946)
 -   [`9ea348e`](https://github.com/stdlib-js/stdlib/commit/9ea348efe3ffdfbf20263c5982bae054623f351a) - add `cffti` to namespace
 -   [`61cc8a7`](https://github.com/stdlib-js/stdlib/commit/61cc8a7075fa22f699230509bbcb4628e04b41ca) - add `fft/base/fftpack/cffti` [(#12441)](https://github.com/stdlib-js/stdlib/pull/12441)
 -   [`3a0597c`](https://github.com/stdlib-js/stdlib/commit/3a0597cddb16d89ade4cf3fbf7ed1422df9b0d03) - add `fft/base/fftpack` namespace
@@ -36,6 +37,8 @@
 
 <details>
 
+-   [`6e2e1fe`](https://github.com/stdlib-js/stdlib/commit/6e2e1feeedc61cb7fe91652568033cfbe9de276e) - **feat:** update `fft/base/fftpack` TypeScript declarations [(#12946)](https://github.com/stdlib-js/stdlib/pull/12946) _(by stdlib-bot)_
+-   [`46fd304`](https://github.com/stdlib-js/stdlib/commit/46fd304d00ac69f1fb6bb3eaa8965022724aa247) - **chore:** follow-up fixes for recent commits [(#12933)](https://github.com/stdlib-js/stdlib/pull/12933) _(by Philipp Burckhardt)_
 -   [`9ea348e`](https://github.com/stdlib-js/stdlib/commit/9ea348efe3ffdfbf20263c5982bae054623f351a) - **feat:** add `cffti` to namespace _(by Athan Reines)_
 -   [`61cc8a7`](https://github.com/stdlib-js/stdlib/commit/61cc8a7075fa22f699230509bbcb4628e04b41ca) - **feat:** add `fft/base/fftpack/cffti` [(#12441)](https://github.com/stdlib-js/stdlib/pull/12441) _(by Gunj Joshi, Athan Reines)_
 -   [`30fc1af`](https://github.com/stdlib-js/stdlib/commit/30fc1afe3d3dbe8b50a93b20291f8efc6c6bdfd0) - **docs:** update notes _(by Athan Reines)_

docs/types/index.d.ts

@@ -20,13 +20,48 @@
 
 /* eslint-disable max-lines */
 
+import cffti = require( '@stdlib/fft-base-fftpack-cffti' );
 import decompose = require( '@stdlib/fft-base-fftpack-decompose' );
 import rffti = require( '@stdlib/fft-base-fftpack-rffti' );
 
 /**
 * Interface describing the `fftpack` namespace.
 */
 interface Namespace {
+	/**
+	* Initializes a workspace array for performing a complex-valued Fourier transform.
+	*
+	* ## Notes
+	*
+	* -   The workspace array should have a length of at least `( 4*N ) + 34` elements.
+	* -   For single-point sequences (N=1), the function returns immediately as the FFT is the identity operation.
+	*
+	* @param N - length of the sequence
+	* @param workspace - workspace array
+	* @param strideW - stride length for `workspace`
+	* @param offsetW - starting index for `workspace`
+	* @returns workspace array
+	*
+	* @example
+	* var Float64Array = require( '@stdlib/array-float64' );
+	*
+	* var N = 8;
+	* var workspace = new Float64Array( ( 4*N ) + 34 );
+	*
+	* var out = ns.cffti( N, workspace, 1, 0 );
+	* // returns <Float64Array>
+	*
+	* var bool = ( out === workspace );
+	* // returns true
+	*
+	* var twiddleFactors = workspace.slice( 2*N, 4*N );
+	* // returns <Float64Array>[ 1, 0, ~0.707, ~0.707, ~0, 1, ~-0.707, ~0.707, 1, 0, 1, 0, 1, 0, ~0, -1 ]
+	*
+	* var factors = workspace.slice( 4*N, ( 4*N ) + 4 );
+	* // returns <Float64Array>[ 8, 2, 2, 4 ]
+	*/
+	cffti: typeof cffti;
+
 	/**
 	* Factorizes a sequence length into a product of integers.
 	*