refactor: use powf and truncf for float32 operations in truncbf

- Replace pow with powf in JavaScript and C implementations
- Replace trunc with truncf in JavaScript and C implementations
- Update variable types from double to float in C code
- Update manifest.json dependencies to powf and truncf
- Ensures proper single-precision floating-point operations throughout

Author: Amansingh0807

lib/node_modules/@stdlib/math/base/special/truncbf/lib/main.js

@@ -22,8 +22,8 @@
 
 var isnanf = require( '@stdlib/math/base/assert/is-nanf' );
 var isInfinitef = require( '@stdlib/math/base/assert/is-infinitef' );
-var pow = require( '@stdlib/math/base/special/pow' );
-var trunc = require( '@stdlib/math/base/special/trunc' );
+var powf = require( '@stdlib/math/base/special/powf' );
+var truncf = require( '@stdlib/math/base/special/truncf' );
 var float64ToFloat32 = require( '@stdlib/number/float64/base/to-float32' );
 
 
@@ -71,10 +71,10 @@ function truncbf( x, n, b ) {
 	}
 
 	// Compute scale factor: s = b^n
-	s = pow( b, n );
+	s = powf( b, n );
 
 	// Multiply by scale, truncate, then divide by scale
-	y = trunc( x * s ) / s;
+	y = truncf( x * s ) / s;
 
 	return float64ToFloat32( y );
 }

lib/node_modules/@stdlib/math/base/special/truncbf/manifest.json

@@ -39,8 +39,8 @@
       "libraries": [],
       "libpath": [],
       "dependencies": [
-        "@stdlib/math/base/special/pow",
-        "@stdlib/math/base/special/trunc",
+        "@stdlib/math/base/special/powf",
+        "@stdlib/math/base/special/truncf",
         "@stdlib/math/base/assert/is-nanf",
         "@stdlib/math/base/assert/is-infinitef"
       ]

lib/node_modules/@stdlib/math/base/special/truncbf/src/main.c

@@ -17,8 +17,8 @@
 */
 
 #include "stdlib/math/base/special/truncbf.h"
-#include "stdlib/math/base/special/pow.h"
-#include "stdlib/math/base/special/trunc.h"
+#include "stdlib/math/base/special/powf.h"
+#include "stdlib/math/base/special/truncf.h"
 #include "stdlib/math/base/assert/is-nanf.h"
 #include "stdlib/math/base/assert/is-infinitef.h"
 #include <stdint.h>
@@ -36,8 +36,8 @@
 * // returns 3.14f
 */
 float stdlib_base_truncbf( const float x, const int32_t n, const int32_t b ) {
-	double s;
-	double y;
+	float s;
+	float y;
 
 	if ( x == 0.0f || stdlib_base_is_nanf( x ) || stdlib_base_is_infinitef( x ) ) {
 		return x;
@@ -46,11 +46,11 @@ float stdlib_base_truncbf( const float x, const int32_t n, const int32_t b ) {
 		return 0.0f / 0.0f; // NaN
 	}
 
-	// Compute scale factor: s = b^n using double precision
-	s = stdlib_base_pow( (double)b, (double)n );
+	// Compute scale factor: s = b^n using single precision
+	s = stdlib_base_powf( (float)b, (float)n );
 
 	// Multiply by scale, truncate, then divide by scale
-	y = stdlib_base_trunc( (double)x * s ) / s;
+	y = stdlib_base_truncf( x * s ) / s;
 
-	return (float)y;
+	return y;
 }