feat: add constants/float64/max-safe-nth-double-factorial

PR-URL: #2966
Co-authored-by: Athan Reines <[email protected]>
Reviewed-by: Athan Reines <[email protected]> 
Signed-off-by: Athan Reines <[email protected]>

lib/node_modules/@stdlib/constants/float64/max-safe-nth-double-factorial/README.md

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+<!--
+
+@license Apache-2.0
+
+Copyright (c) 2024 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.
+
+-->
+
+# FLOAT64_MAX_SAFE_NTH_DOUBLE_FACTORIAL
+
+> Maximum safe nth [double factorial][double-factorial] when stored in [double-precision floating-point][ieee754] format.
+
+<section class="usage">
+
+## Usage
+
+<!-- eslint-disable id-length -->
+
+```javascript
+var FLOAT64_MAX_SAFE_NTH_DOUBLE_FACTORIAL = require( '@stdlib/constants/float64/max-safe-nth-double-factorial' );
+```
+
+#### FLOAT64_MAX_SAFE_NTH_DOUBLE_FACTORIAL
+
+The maximum [safe][safe-integers] nth [double factorial][double-factorial] when stored in [double-precision floating-point][ieee754] format.
+
+<!-- eslint-disable id-length -->
+
+```javascript
+var bool = ( FLOAT64_MAX_SAFE_NTH_DOUBLE_FACTORIAL === 301 );
+// returns true
+```
+
+</section>
+
+<!-- /.usage -->
+
+<section class="examples">
+
+## Examples
+
+<!-- eslint-disable id-length -->
+
+<!-- eslint no-undef: "error" -->
+
+```javascript
+var FLOAT64_MAX_SAFE_NTH_DOUBLE_FACTORIAL = require( '@stdlib/constants/float64/max-safe-nth-double-factorial' );
+
+function factorial( n ) {
+ var a;
+ var i;
+
+ a = 1;
+ for ( i = n; i >= 2; i -= 2 ) {
+ a *= i;
+ }
+ return a;
+}
+
+var v;
+var i;
+for ( i = 0; i < 400; i++ ) {
+ v = factorial( i );
+ if ( i > FLOAT64_MAX_SAFE_NTH_DOUBLE_FACTORIAL ) {
+ console.log( 'Unsafe: %d', v );
+ } else {
+ console.log( 'Safe: %d', v );
+ }
+}
+```
+
+</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/float64/max_safe_nth_double_factorial.h"
+```
+
+#### STDLIB_CONSTANT_FLOAT64_MAX_SAFE_NTH_DOUBLE_FACTORIAL
+
+Macro for the maximum [safe][safe-integers] nth [double factorial][double-factorial] when stored in [double-precision floating-point][ieee754] format.
+
+</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">
+
+</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">
+
+[safe-integers]: http://www.2ality.com/2013/10/safe-integers.html
+
+[double-factorial]: https://en.wikipedia.org/wiki/Double_factorial
+
+[ieee754]: https://en.wikipedia.org/wiki/IEEE_754-1985
+
+<!-- <related-links> -->
+
+<!-- </related-links> -->
+
+</section>
+
+<!-- /.links -->

lib/node_modules/@stdlib/constants/float64/max-safe-nth-double-factorial/docs/repl.txt

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+
+{{alias}}
+ Maximum safe nth double factorial when stored in double-precision floating-
+ point format.
+
+ Examples
+ --------
+ > {{alias}}
+ 301
+
+ See Also
+ --------
+

lib/node_modules/@stdlib/constants/float64/max-safe-nth-double-factorial/docs/types/index.d.ts

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+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2024 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
+
+/**
+* Maximum safe nth double factorial when stored in double-precision floating-point format.
+*
+* @example
+* var max = FLOAT64_MAX_SAFE_NTH_DOUBLE_FACTORIAL;
+* // returns 301
+*/
+declare const FLOAT64_MAX_SAFE_NTH_DOUBLE_FACTORIAL: number;
+
+
+// EXPORTS //
+
+export = FLOAT64_MAX_SAFE_NTH_DOUBLE_FACTORIAL;

lib/node_modules/@stdlib/constants/float64/max-safe-nth-double-factorial/docs/types/test.ts

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+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2024 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 FLOAT64_MAX_SAFE_NTH_DOUBLE_FACTORIAL = require( './index' );
+
+
+// TESTS //
+
+// The export is a number...
+{
+ // eslint-disable-next-line @typescript-eslint/no-unused-expressions
+ FLOAT64_MAX_SAFE_NTH_DOUBLE_FACTORIAL; // $ExpectType number
+}

lib/node_modules/@stdlib/constants/float64/max-safe-nth-double-factorial/examples/index.js

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+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2024 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 FLOAT64_MAX_SAFE_NTH_DOUBLE_FACTORIAL = require( './../lib' ); // eslint-disable-line id-length
+
+function factorial( n ) {
+ var a;
+ var i;
+
+ a = 1;
+ for ( i = n; i >= 2; i -= 2 ) {
+ a *= i;
+ }
+ return a;
+}
+
+var v;
+var i;
+for ( i = 0; i < 400; i++ ) {
+ v = factorial( i );
+ if ( i > FLOAT64_MAX_SAFE_NTH_DOUBLE_FACTORIAL ) {
+ console.log( 'Unsafe: %d', v );
+ } else {
+ console.log( 'Safe: %d', v );
+ }
+}

lib/node_modules/@stdlib/constants/float64/max-safe-nth-double-factorial/include/stdlib/constants/float64/max_safe_nth_double_factorial.h

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+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2024 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_FLOAT64_MAX_SAFE_NTH_DOUBLE_FACTORIAL
+#define STDLIB_CONSTANTS_FLOAT64_MAX_SAFE_NTH_DOUBLE_FACTORIAL
+
+/**
+* Macro for the maximum safe nth double factorial when stored in double-precision floating-point format.
+*/
+#define STDLIB_CONSTANT_FLOAT64_MAX_SAFE_NTH_DOUBLE_FACTORIAL 301
+
+#endif // !STDLIB_CONSTANTS_FLOAT64_MAX_SAFE_NTH_DOUBLE_FACTORIAL_H

lib/node_modules/@stdlib/constants/float64/max-safe-nth-double-factorial/lib/index.js

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+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2024 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';
+
+/**
+* Maximum safe nth double factorial when stored in double-precision floating-point format.
+*
+* @module @stdlib/constants/float64/max-safe-nth-double-factorial
+* @type {integer}
+*
+* @example
+* var FLOAT64_MAX_SAFE_NTH_DOUBLE_FACTORIAL = require( '@stdlib/constants/float64/max-safe-nth-double-factorial' );
+* // returns 301
+*/
+
+
+// MAIN //
+
+/**
+* The maximum safe nth double factorial when stored in double-precision floating-point format.
+*
+* @constant
+* @type {integer}
+* @default 301
+* @see [double factorial]{@link https://en.wikipedia.org/wiki/Double_factorial}
+* @see [IEEE 754]{@link https://en.wikipedia.org/wiki/IEEE_754-1985}
+*/
+var FLOAT64_MAX_SAFE_NTH_DOUBLE_FACTORIAL = 301|0; // eslint-disable-line id-length
+
+
+// EXPORTS //
+
+module.exports = FLOAT64_MAX_SAFE_NTH_DOUBLE_FACTORIAL;