6cb14adbfa
Implement scalbn via `fptuil::ldexp` for `FLT_RADIX==2` case. "unimplemented" otherwise. Reviewed By: lntue, sivachandra Differential Revision: https://reviews.llvm.org/D143116
26 lines
769 B
C++
26 lines
769 B
C++
//===-- Single-precision scalbnf function ---------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "src/math/scalbnf.h"
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#include "src/__support/FPUtil/ManipulationFunctions.h"
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#include "src/__support/common.h"
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namespace __llvm_libc {
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LLVM_LIBC_FUNCTION(float, scalbnf, (float x, int n)) {
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#if !defined(__FLT_RADIX__)
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#error __FLT_RADIX__ undefined.
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#elif __FLT_RADIX__ != 2
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#error __FLT_RADIX__!=2, unimplemented.
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#else
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return fputil::ldexp(x, n);
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#endif
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}
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} // namespace __llvm_libc
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