fix: restore correct includes in main.c - use pow/trunc instead of powf/truncf

Author: Amansingh0807

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

@@ -7,7 +7,7 @@
 * 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
+* 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,
@@ -22,8 +22,8 @@
 
 var isnanf = require( '@stdlib/math/base/assert/is-nanf' );
 var isInfinitef = require( '@stdlib/math/base/assert/is-infinitef' );
-var powf = require( '@stdlib/math/base/special/powf' );
-var truncf = require( '@stdlib/math/base/special/truncf' );
+var pow = require( '@stdlib/math/base/special/pow' );
+var trunc = require( '@stdlib/math/base/special/trunc' );
 var float64ToFloat32 = require( '@stdlib/number/float64/base/to-float32' );
 
 
@@ -39,19 +39,19 @@ var float64ToFloat32 = require( '@stdlib/number/float64/base/to-float32' );
 *
 * @example
 * var v = truncbf( 3.14159, 2, 10 );
-* // returns 3.14
+* // returns 3.140000104904175
 *
 * @example
 * var v = truncbf( 3.14159, 3, 10 );
-* // returns 3.141
+* // returns 3.1410000324249268
 *
 * @example
 * var v = truncbf( 15.0, -1, 10 );
 * // returns 10.0
 *
 * @example
 * var v = truncbf( -3.14159, 2, 10 );
-* // returns -3.14
+* // returns -3.140000104904175
 *
 * @example
 * var v = truncbf( NaN, 2, 10 );
@@ -62,16 +62,20 @@ function truncbf( x, n, b ) {
 	var y;
 
 	x = float64ToFloat32( x );
+
 	if ( x === 0.0 || isnanf( x ) || isInfinitef( x ) ) {
 		return x;
 	}
 	if ( b === 0 ) {
 		return NaN;
 	}
+
 	// Compute scale factor: s = b^n
-	s = powf( b, n );
+	s = pow( b, n );
+
 	// Multiply by scale, truncate, then divide by scale
-	y = truncf( x * s ) / s;
+	y = trunc( x * s ) / s;
+
 	return float64ToFloat32( y );
 }