refactor: precompute constant

kgryte · web-flow · commit c884ee32b8ac · 2025-04-10T23:39:47.000-07:00
Signed-off-by: Athan &lt;kgryte@gmail.com&gt;
diff --git a/lib/node_modules/@stdlib/math/base/special/fibonacci-indexf/src/main.c b/lib/node_modules/@stdlib/math/base/special/fibonacci-indexf/src/main.c
@@ -26,6 +26,7 @@
 #include <stdbool.h>
 
 static const float SQRT_5 = 2.23606797749979f;
+static const float LN_PHI = stdlib_base_lnf( STDLIB_CONSTANT_FLOAT32_PHI );
 
 /**
 * Computes the Fibonacci number index of a single-precision floating-point number.
@@ -48,5 +49,5 @@ float stdlib_base_fibonacci_indexf( const float F ) {
 		return 0.0f / 0.0f; // NaN
 	}
 	x = ( F * SQRT_5 ) + 0.5f;
-	return stdlib_base_roundf( stdlib_base_lnf( x ) / stdlib_base_lnf( STDLIB_CONSTANT_FLOAT32_PHI ) );
+	return stdlib_base_roundf( stdlib_base_lnf( x ) / LN_PHI );
 }

Original file line number	Diff line number	Diff line change
`@@ -26,6 +26,7 @@`
`26`	`26`	`#include <stdbool.h>`
`27`	`27`
`28`	`28`	`static const float SQRT_5 = 2.23606797749979f;`
	`29`	`+static const float LN_PHI = stdlib_base_lnf( STDLIB_CONSTANT_FLOAT32_PHI );`
`29`	`30`
`30`	`31`	`/**`
`31`	`32`	`* Computes the Fibonacci number index of a single-precision floating-point number.`
`@@ -48,5 +49,5 @@ float stdlib_base_fibonacci_indexf( const float F ) {`
`48`	`49`	`return 0.0f / 0.0f; // NaN`
`49`	`50`	`}`
`50`	`51`	`x = ( F * SQRT_5 ) + 0.5f;`
`51`		`- return stdlib_base_roundf( stdlib_base_lnf( x ) / stdlib_base_lnf( STDLIB_CONSTANT_FLOAT32_PHI ) );`
	`52`	`+ return stdlib_base_roundf( stdlib_base_lnf( x ) / LN_PHI );`
`52`	`53`	`}`