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refactor: use max-safe-nth-factorial package in math/base/special/factorial #2676

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Jul 27, 2024
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refactor: use max-safe-nth-factorial package in math/base/special/factorial #2676

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8 changes: 2 additions & 6 deletions lib/node_modules/@stdlib/math/base/special/factorial/lib/main.js
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Original file line number Diff line number Diff line change
Expand Up @@ -24,14 +24,10 @@
var isInteger = require( '@stdlib/math/base/assert/is-integer' );
var gamma = require( '@stdlib/math/base/special/gamma' );
var PINF = require( '@stdlib/constants/float64/pinf' );
var FLOAT64_MAX_SAFE_NTH_FACTORIAL = require( '@stdlib/constants/float64/max-safe-nth-factorial' );

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Identifier name 'FLOAT64_MAX_SAFE_NTH_FACTORIAL' is too long (> 25)
var FACTORIALS = require( './factorials.json' );


// VARIABLES //

var MAX_FACTORIAL = 170; // TODO: consider extracting as a constant


// MAIN //

/**
Expand Down Expand Up @@ -76,7 +72,7 @@
if ( x < 0 ) {
return NaN;
}
if ( x <= MAX_FACTORIAL ) {
if ( x <= FLOAT64_MAX_SAFE_NTH_FACTORIAL ) {
return FACTORIALS[ x ];
}
return PINF;
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9 changes: 6 additions & 3 deletions lib/node_modules/@stdlib/math/base/special/factorial/manifest.json
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Expand Up @@ -40,7 +40,8 @@
"@stdlib/math/base/assert/is-nan",
"@stdlib/math/base/assert/is-integer",
"@stdlib/math/base/special/gamma",
"@stdlib/constants/float64/pinf"
"@stdlib/constants/float64/pinf",
"@stdlib/constants/float64/max-safe-nth-factorial"
]
},
{
Expand All @@ -57,7 +58,8 @@
"@stdlib/math/base/assert/is-nan",
"@stdlib/math/base/assert/is-integer",
"@stdlib/math/base/special/gamma",
"@stdlib/constants/float64/pinf"
"@stdlib/constants/float64/pinf",
"@stdlib/constants/float64/max-safe-nth-factorial"
]
},
{
Expand All @@ -74,7 +76,8 @@
"@stdlib/math/base/assert/is-nan",
"@stdlib/math/base/assert/is-integer",
"@stdlib/math/base/special/gamma",
"@stdlib/constants/float64/pinf"
"@stdlib/constants/float64/pinf",
"@stdlib/constants/float64/max-safe-nth-factorial"
]
}
]
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4 changes: 2 additions & 2 deletions lib/node_modules/@stdlib/math/base/special/factorial/src/main.c
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Expand Up @@ -21,9 +21,9 @@
#include "stdlib/math/base/assert/is_integer.h"
#include "stdlib/math/base/special/gamma.h"
#include "stdlib/constants/float64/pinf.h"
#include "stdlib/constants/float64/max_safe_nth_factorial.h"
#include <stdint.h>

static const double MAX_FACTORIAL = 170.0;
static const double FACTORIALS[ 171 ] = {
1.0,
1.0,
Expand Down Expand Up @@ -217,7 +217,7 @@ double stdlib_base_factorial( const double x ) {
if ( x < 0.0 ) {
return 0.0 / 0.0; // NaN
}
if ( x <= MAX_FACTORIAL ) {
if ( x <= STDLIB_CONSTANT_FLOAT64_MAX_SAFE_NTH_FACTORIAL ) {
return FACTORIALS[ (int32_t)x ];
}
return STDLIB_CONSTANT_FLOAT64_PINF;
Expand Down
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