| 1 | //===-- Single-precision scalbn function ----------------------------------===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | |
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| 9 | #include "src/math/scalbn.h" |
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| 10 | #include "src/__support/FPUtil/ManipulationFunctions.h" |
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| 11 | #include "src/__support/common.h" |
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| 12 | |
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| 13 | namespace LIBC_NAMESPACE { |
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| 14 | |
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| 15 | LLVM_LIBC_FUNCTION(double, scalbn, (double x, int n)) { |
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| 16 | #if !defined(__FLT_RADIX__) |
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| 17 | #error __FLT_RADIX__ undefined. |
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| 18 | #elif __FLT_RADIX__ != 2 |
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| 19 | #error __FLT_RADIX__!=2, unimplemented. |
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| 20 | #else |
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| 21 | return fputil::ldexp(x, exp: n); |
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| 22 | #endif |
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| 23 | } |
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| 24 | |
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| 25 | } // namespace LIBC_NAMESPACE |
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| 26 | |
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