question: public static float buildFloat ( int mant , int exp ) { if ( exp < - 125 || mant == 0 ) { return 0.0f ; } if ( exp >= 128 ) { return ( mant > 0 ) ? Float . POSITIVE_INFINITY : Float . NEGATIVE_INFINITY ; } if ( exp == 0 ) { return mant ; } if ( mant >= ( 1 << 26 ) ) { mant ++ ; } return ( float ) ( ( exp > 0 ) ? mant * pow10 [ exp ] : mant / pow10 [ - exp ] ) ; }
target:  Computes a float from mantissa and exponent.