feat: explicitly convert values to float32

Author: aayush0325

lib/node_modules/@stdlib/math/base/special/exp2f/lib/main.js

@@ -41,6 +41,7 @@ var FLOAT32_MIN_BASE2_EXPONENT = require( '@stdlib/constants/float32/min-base2-e
 var roundf = require( '@stdlib/math/base/special/roundf' );
 var ldexpf = require( '@stdlib/math/base/special/ldexpf' );
 var isnanf = require( '@stdlib/math/base/assert/is-nanf' );
+var float64ToFloat32 = require( '@stdlib/number/float64/base/to-float32' );
 var PINF = require( '@stdlib/constants/float32/pinf' );
 var polyvalP = require( './polyval_p.js' );
 var polyvalQ = require( './polyval_q.js' );
@@ -105,19 +106,19 @@ function exp2f( x ) {
 		return PINF;
 	}
 	if ( x < FLOAT32_MIN_BASE2_EXPONENT ) {
-		return 0.0;
+		return float64ToFloat32( 0.0 );
 	}
 	// Separate into integer and fractional parts...
-	n = roundf( x );
-	x -= n;
+	n = float64ToFloat32( roundf( x ) );
+	x -= float64ToFloat32( n );
 
-	xx = x * x;
-	px = x * polyvalP( xx );
-	x = px / ( polyvalQ( xx ) - px );
-	x = 1.0 + ldexpf( x, 1 );
+	xx = float64ToFloat32( x * x );
+	px = float64ToFloat32( x * polyvalP( xx ) );
+	x = float64ToFloat32( px / float64ToFloat32( ( polyvalQ( xx ) - px ) ) );
+	x = float64ToFloat32( 1.0 ) + ldexpf( x, 1 );
 
 	// Scale by power of 2:
-	return ldexpf( x, n );
+	return float64ToFloat32( ldexpf( x, n ) );
 }