|  | //===-- Single-precision scalbn function ----------------------------------===// | 
|  | // | 
|  | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. | 
|  | // See https://llvm.org/LICENSE.txt for license information. | 
|  | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception | 
|  | // | 
|  | //===----------------------------------------------------------------------===// | 
|  |  | 
|  | #include "src/math/scalbn.h" | 
|  | #include "src/__support/FPUtil/ManipulationFunctions.h" | 
|  | #include "src/__support/common.h" | 
|  |  | 
|  | namespace LIBC_NAMESPACE { | 
|  |  | 
|  | LLVM_LIBC_FUNCTION(double, scalbn, (double x, int n)) { | 
|  | #if !defined(__FLT_RADIX__) | 
|  | #error __FLT_RADIX__ undefined. | 
|  | #elif __FLT_RADIX__ != 2 | 
|  | #error __FLT_RADIX__!=2, unimplemented. | 
|  | #else | 
|  | return fputil::ldexp(x, n); | 
|  | #endif | 
|  | } | 
|  |  | 
|  | } // namespace LIBC_NAMESPACE |