From 3e6dfeeb89c1295c3bc2232efff18496e4f6f490 Mon Sep 17 00:00:00 2001
From: Neerajpathak07 <neerajrpathak710@gmail.com>
Date: Sat, 15 Mar 2025 17:45:52 +0530
Subject: [PATCH 1/2] feat: add JS implementation

---
 .../constants/float32/ln-two-pi/README.md     | 147 ++++++++++++++++++
 .../constants/float32/ln-two-pi/docs/repl.txt |  12 ++
 .../float32/ln-two-pi/docs/types/index.d.ts   |  33 ++++
 .../float32/ln-two-pi/docs/types/test.ts      |  28 ++++
 .../float32/ln-two-pi/examples/index.js       |  24 +++
 .../stdlib/constants/float32/ln_two_pi.h      |  27 ++++
 .../constants/float32/ln-two-pi/lib/index.js  |  55 +++++++
 .../constants/float32/ln-two-pi/manifest.json |  36 +++++
 .../constants/float32/ln-two-pi/package.json  |  72 +++++++++
 .../constants/float32/ln-two-pi/test/test.js  |  56 +++++++
 10 files changed, 490 insertions(+)
 create mode 100644 lib/node_modules/@stdlib/constants/float32/ln-two-pi/README.md
 create mode 100644 lib/node_modules/@stdlib/constants/float32/ln-two-pi/docs/repl.txt
 create mode 100644 lib/node_modules/@stdlib/constants/float32/ln-two-pi/docs/types/index.d.ts
 create mode 100644 lib/node_modules/@stdlib/constants/float32/ln-two-pi/docs/types/test.ts
 create mode 100644 lib/node_modules/@stdlib/constants/float32/ln-two-pi/examples/index.js
 create mode 100644 lib/node_modules/@stdlib/constants/float32/ln-two-pi/include/stdlib/constants/float32/ln_two_pi.h
 create mode 100644 lib/node_modules/@stdlib/constants/float32/ln-two-pi/lib/index.js
 create mode 100644 lib/node_modules/@stdlib/constants/float32/ln-two-pi/manifest.json
 create mode 100644 lib/node_modules/@stdlib/constants/float32/ln-two-pi/package.json
 create mode 100644 lib/node_modules/@stdlib/constants/float32/ln-two-pi/test/test.js

diff --git a/lib/node_modules/@stdlib/constants/float32/ln-two-pi/README.md b/lib/node_modules/@stdlib/constants/float32/ln-two-pi/README.md
new file mode 100644
index 000000000000..d02363a3a2bb
--- /dev/null
+++ b/lib/node_modules/@stdlib/constants/float32/ln-two-pi/README.md
@@ -0,0 +1,147 @@
+<!--
+
+@license Apache-2.0
+
+Copyright (c) 2025 The Stdlib Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+
+-->
+
+# FLOAT32_LN_TWO_PI
+
+> [Natural logarithm][@stdlib/math/base/special/lnf] of `2π`.
+
+<section class="usage">
+
+## Usage
+
+```javascript
+var FLOAT32_LN_TWO_PI = require( '@stdlib/constants/float32/ln-two-pi' );
+```
+
+#### FLOAT32_LN_TWO_PI
+
+[Natural logarithm][@stdlib/math/base/special/lnf] of `2π`.
+
+```javascript
+var bool = ( FLOAT32_LN_TWO_PI === 1.8378770351409912 );
+// returns true
+```
+
+</section>
+
+<!-- /.usage -->
+
+<section class="examples">
+
+## Examples
+
+<!-- TODO: better example -->
+
+<!-- eslint no-undef: "error" -->
+
+```javascript
+var FLOAT32_LN_TWO_PI = require( '@stdlib/constants/float32/ln-two-pi' );
+
+console.log( FLOAT32_LN_TWO_PI );
+// => 1.8378770351409912
+```
+
+</section>
+
+<!-- /.examples -->
+
+<!-- C interface documentation. -->
+
+* * *
+
+<section class="c">
+
+## C APIs
+
+<!-- Section to include introductory text. Make sure to keep an empty line after the intro `section` element and another before the `/section` close. -->
+
+<section class="intro">
+
+</section>
+
+<!-- /.intro -->
+
+<!-- C usage documentation. -->
+
+<section class="usage">
+
+### Usage
+
+```c
+#include "stdlib/constants/float32/ln_two_pi.h"
+```
+
+#### STDLIB_CONSTANT_FLOAT32_LN_TWO_PI
+
+Macro for the [natural logarithm][@stdlib/math/base/special/lnf] of `2π`.
+
+</section>
+
+<!-- /.usage -->
+
+<!-- C API usage notes. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
+
+<section class="notes">
+
+</section>
+
+<!-- /.notes -->
+
+<!-- C API usage examples. -->
+
+<section class="examples">
+
+</section>
+
+<!-- /.examples -->
+
+</section>
+
+<!-- /.c -->
+
+<!-- Section for related `stdlib` packages. Do not manually edit this section, as it is automatically populated. -->
+
+<section class="related">
+
+* * *
+
+## See Also
+
+-   <span class="package-name">[`@stdlib/constants/float32/two-pi`][@stdlib/constants/float32/two-pi]</span><span class="delimiter">: </span><span class="description">2π.</span>
+
+</section>
+
+<!-- /.related -->
+
+<!-- Section for all links. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
+
+<section class="links">
+
+[@stdlib/math/base/special/lnf]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/math/base/special/lnf
+
+<!-- <related-links> -->
+
+[@stdlib/constants/float32/two-pi]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/constants/float32/two-pi
+
+<!-- </related-links> -->
+
+</section>
+
+<!-- /.links -->
diff --git a/lib/node_modules/@stdlib/constants/float32/ln-two-pi/docs/repl.txt b/lib/node_modules/@stdlib/constants/float32/ln-two-pi/docs/repl.txt
new file mode 100644
index 000000000000..b5dfeef95ac9
--- /dev/null
+++ b/lib/node_modules/@stdlib/constants/float32/ln-two-pi/docs/repl.txt
@@ -0,0 +1,12 @@
+
+{{alias}}
+    Natural logarithm of `2π`.
+
+    Examples
+    --------
+    > {{alias}}
+    1.8378770351409912
+
+    See Also
+    --------
+
diff --git a/lib/node_modules/@stdlib/constants/float32/ln-two-pi/docs/types/index.d.ts b/lib/node_modules/@stdlib/constants/float32/ln-two-pi/docs/types/index.d.ts
new file mode 100644
index 000000000000..36289d1955eb
--- /dev/null
+++ b/lib/node_modules/@stdlib/constants/float32/ln-two-pi/docs/types/index.d.ts
@@ -0,0 +1,33 @@
+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2025 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+// TypeScript Version: 4.1
+
+/**
+* Natural logarithm of `2π`.
+*
+* @example
+* var val = FLOAT32_LN_TWO_PI;
+* // returns 1.8378770351409912
+*/
+declare const FLOAT32_LN_TWO_PI: number;
+
+
+// EXPORTS //
+
+export = FLOAT32_LN_TWO_PI;
diff --git a/lib/node_modules/@stdlib/constants/float32/ln-two-pi/docs/types/test.ts b/lib/node_modules/@stdlib/constants/float32/ln-two-pi/docs/types/test.ts
new file mode 100644
index 000000000000..b6d2007e9cc9
--- /dev/null
+++ b/lib/node_modules/@stdlib/constants/float32/ln-two-pi/docs/types/test.ts
@@ -0,0 +1,28 @@
+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2025 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+import FLOAT32_LN_TWO_PI = require( './index' );
+
+
+// TESTS //
+
+// The export is a number...
+{
+	// eslint-disable-next-line @typescript-eslint/no-unused-expressions
+	FLOAT32_LN_TWO_PI; // $ExpectType number
+}
diff --git a/lib/node_modules/@stdlib/constants/float32/ln-two-pi/examples/index.js b/lib/node_modules/@stdlib/constants/float32/ln-two-pi/examples/index.js
new file mode 100644
index 000000000000..0b959881f4dd
--- /dev/null
+++ b/lib/node_modules/@stdlib/constants/float32/ln-two-pi/examples/index.js
@@ -0,0 +1,24 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2025 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+var FLOAT32_LN_TWO_PI = require( './../lib' );
+
+console.log( FLOAT32_LN_TWO_PI );
+// => 1.8378770351409912
diff --git a/lib/node_modules/@stdlib/constants/float32/ln-two-pi/include/stdlib/constants/float32/ln_two_pi.h b/lib/node_modules/@stdlib/constants/float32/ln-two-pi/include/stdlib/constants/float32/ln_two_pi.h
new file mode 100644
index 000000000000..1de9886fed22
--- /dev/null
+++ b/lib/node_modules/@stdlib/constants/float32/ln-two-pi/include/stdlib/constants/float32/ln_two_pi.h
@@ -0,0 +1,27 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2025 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+#ifndef STDLIB_CONSTANTS_FLOAT32_LN_TWO_PI_H
+#define STDLIB_CONSTANTS_FLOAT32_LN_TWO_PI_H
+
+/**
+* Macro for the natural logarithm of 2π.
+*/
+#define STDLIB_CONSTANT_FLOAT32_LN_TWO_PI 1.8378770351409912
+
+#endif // !STDLIB_CONSTANTS_FLOAT32_LN_TWO_PI_H
diff --git a/lib/node_modules/@stdlib/constants/float32/ln-two-pi/lib/index.js b/lib/node_modules/@stdlib/constants/float32/ln-two-pi/lib/index.js
new file mode 100644
index 000000000000..4f4140583fea
--- /dev/null
+++ b/lib/node_modules/@stdlib/constants/float32/ln-two-pi/lib/index.js
@@ -0,0 +1,55 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2025 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+/**
+* Natural logarithm of `2π`.
+*
+* @module @stdlib/constants/float32/ln-two-pi
+* @type {number}
+*
+* @example
+* var FLOAT32_LN_TWO_PI = require( '@stdlib/constants/float32/ln-two-pi' );
+* // returns 1.8378770351409912
+*/
+
+// MODULES //
+
+var float64ToFloat32 = require( '@stdlib/number/float64/base/to-float32' );
+
+
+// MAIN //
+
+/**
+* Natural logarithm of `2π`.
+*
+* ```tex
+* \ln 2\pi
+* ```
+*
+* @constant
+* @type {number}
+* @default 1.8378770351409912
+*/
+var FLOAT32_LN_TWO_PI = float64ToFloat32( 1.8378770664093456 );
+
+
+// EXPORTS //
+
+module.exports = FLOAT32_LN_TWO_PI;
diff --git a/lib/node_modules/@stdlib/constants/float32/ln-two-pi/manifest.json b/lib/node_modules/@stdlib/constants/float32/ln-two-pi/manifest.json
new file mode 100644
index 000000000000..844d692f6439
--- /dev/null
+++ b/lib/node_modules/@stdlib/constants/float32/ln-two-pi/manifest.json
@@ -0,0 +1,36 @@
+{
+  "options": {},
+  "fields": [
+    {
+      "field": "src",
+      "resolve": true,
+      "relative": true
+    },
+    {
+      "field": "include",
+      "resolve": true,
+      "relative": true
+    },
+    {
+      "field": "libraries",
+      "resolve": false,
+      "relative": false
+    },
+    {
+      "field": "libpath",
+      "resolve": true,
+      "relative": false
+    }
+  ],
+  "confs": [
+    {
+      "src": [],
+      "include": [
+        "./include"
+      ],
+      "libraries": [],
+      "libpath": [],
+      "dependencies": []
+    }
+  ]
+}
diff --git a/lib/node_modules/@stdlib/constants/float32/ln-two-pi/package.json b/lib/node_modules/@stdlib/constants/float32/ln-two-pi/package.json
new file mode 100644
index 000000000000..5ec7605e6b02
--- /dev/null
+++ b/lib/node_modules/@stdlib/constants/float32/ln-two-pi/package.json
@@ -0,0 +1,72 @@
+{
+  "name": "@stdlib/constants/float32/ln-two-pi",
+  "version": "0.0.0",
+  "description": "Natural logarithm of 2π.",
+  "license": "Apache-2.0",
+  "author": {
+    "name": "The Stdlib Authors",
+    "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
+  },
+  "contributors": [
+    {
+      "name": "The Stdlib Authors",
+      "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
+    }
+  ],
+  "main": "./lib",
+  "directories": {
+    "doc": "./docs",
+    "example": "./examples",
+    "include": "./include",
+    "lib": "./lib",
+    "test": "./test"
+  },
+  "types": "./docs/types",
+  "scripts": {},
+  "homepage": "https://github.com/stdlib-js/stdlib",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/stdlib-js/stdlib.git"
+  },
+  "bugs": {
+    "url": "https://github.com/stdlib-js/stdlib/issues"
+  },
+  "dependencies": {},
+  "devDependencies": {},
+  "engines": {
+    "node": ">=0.10.0",
+    "npm": ">2.7.0"
+  },
+  "os": [
+    "aix",
+    "darwin",
+    "freebsd",
+    "linux",
+    "macos",
+    "openbsd",
+    "sunos",
+    "win32",
+    "windows"
+  ],
+  "keywords": [
+    "stdlib",
+    "stdmath",
+    "constant",
+    "const",
+    "mathematics",
+    "math",
+    "ln",
+    "ln2",
+    "math.ln2",
+    "natural",
+    "logarithm",
+    "log",
+    "ieee754",
+    "precision",
+    "floating-point",
+    "float",
+    "float32",
+    "pi",
+    "2pi"
+  ]
+}
diff --git a/lib/node_modules/@stdlib/constants/float32/ln-two-pi/test/test.js b/lib/node_modules/@stdlib/constants/float32/ln-two-pi/test/test.js
new file mode 100644
index 000000000000..8e2f9674b0b0
--- /dev/null
+++ b/lib/node_modules/@stdlib/constants/float32/ln-two-pi/test/test.js
@@ -0,0 +1,56 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2025 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var tape = require( 'tape' );
+var lnf = require( '@stdlib/math/base/special/lnf' );
+var absf = require( '@stdlib/math/base/special/absf' );
+var EPS = require( '@stdlib/constants/float32/eps' );
+var PI = require( '@stdlib/constants/float32/pi' );
+var FLOAT32_LN_TWO_PI = require( './../lib' );
+
+
+// TESTS //
+
+tape( 'main export is a number', function test( t ) {
+	t.ok( true, __filename );
+	t.strictEqual( typeof FLOAT32_LN_TWO_PI, 'number', 'main export is a number' );
+	t.end();
+});
+
+tape( 'export is a single-precision floating-point number equal to `1.8378770351409912`', function test( t ) {
+	t.equal( FLOAT32_LN_TWO_PI, 1.8378770351409912, 'equals 1.8378770351409912' );
+	t.end();
+});
+
+tape( 'export equals `ln(2*pi)`', function test( t ) {
+	var delta;
+	var tol;
+	var v;
+
+	v = lnf( 2.0*PI );
+	delta = absf( v - FLOAT32_LN_TWO_PI );
+	tol = EPS * FLOAT32_LN_TWO_PI;
+
+	t.ok( delta <= tol, 'equals ln(2*pi) within tolerance '+tol );
+
+	t.end();
+});

From c9df969fd6e5c2a072df2e40046cd70938006c6e Mon Sep 17 00:00:00 2001
From: Neerajpathak07 <neerajrpathak710@gmail.com>
Date: Sun, 16 Mar 2025 15:17:00 +0530
Subject: [PATCH 2/2] chore: stuff from code review

---
 .../@stdlib/constants/float32/ln-two-pi/README.md    | 12 ------------
 .../include/stdlib/constants/float32/ln_two_pi.h     |  2 +-
 2 files changed, 1 insertion(+), 13 deletions(-)

diff --git a/lib/node_modules/@stdlib/constants/float32/ln-two-pi/README.md b/lib/node_modules/@stdlib/constants/float32/ln-two-pi/README.md
index d02363a3a2bb..1d5ea66943bb 100644
--- a/lib/node_modules/@stdlib/constants/float32/ln-two-pi/README.md
+++ b/lib/node_modules/@stdlib/constants/float32/ln-two-pi/README.md
@@ -120,12 +120,6 @@ Macro for the [natural logarithm][@stdlib/math/base/special/lnf] of `2π`.
 
 <section class="related">
 
-* * *
-
-## See Also
-
--   <span class="package-name">[`@stdlib/constants/float32/two-pi`][@stdlib/constants/float32/two-pi]</span><span class="delimiter">: </span><span class="description">2π.</span>
-
 </section>
 
 <!-- /.related -->
@@ -136,12 +130,6 @@ Macro for the [natural logarithm][@stdlib/math/base/special/lnf] of `2π`.
 
 [@stdlib/math/base/special/lnf]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/math/base/special/lnf
 
-<!-- <related-links> -->
-
-[@stdlib/constants/float32/two-pi]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/constants/float32/two-pi
-
-<!-- </related-links> -->
-
 </section>
 
 <!-- /.links -->
diff --git a/lib/node_modules/@stdlib/constants/float32/ln-two-pi/include/stdlib/constants/float32/ln_two_pi.h b/lib/node_modules/@stdlib/constants/float32/ln-two-pi/include/stdlib/constants/float32/ln_two_pi.h
index 1de9886fed22..a30da4d93f25 100644
--- a/lib/node_modules/@stdlib/constants/float32/ln-two-pi/include/stdlib/constants/float32/ln_two_pi.h
+++ b/lib/node_modules/@stdlib/constants/float32/ln-two-pi/include/stdlib/constants/float32/ln_two_pi.h
@@ -22,6 +22,6 @@
 /**
 * Macro for the natural logarithm of 2π.
 */
-#define STDLIB_CONSTANT_FLOAT32_LN_TWO_PI 1.8378770351409912
+#define STDLIB_CONSTANT_FLOAT32_LN_TWO_PI 1.8378770351409912f
 
 #endif // !STDLIB_CONSTANTS_FLOAT32_LN_TWO_PI_H