| 1 | //===-- Implementation of isxdigit-----------------------------------------===// |
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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/ctype/isxdigit.h" |
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| 10 | #include "src/__support/ctype_utils.h" |
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| 11 | |
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| 12 | #include "src/__support/common.h" |
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| 13 | |
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| 14 | namespace LIBC_NAMESPACE { |
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| 15 | |
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| 16 | // TODO: Currently restricted to default locale. |
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| 17 | // These should be extended using locale information. |
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| 18 | LLVM_LIBC_FUNCTION(int, isxdigit, (int c)) { |
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| 19 | const unsigned ch = static_cast<unsigned>(c); |
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| 20 | return static_cast<int>(internal::isdigit(ch) || (ch | 32) - 'a' < 6); |
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| 21 | } |
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| 22 | |
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| 23 | } // namespace LIBC_NAMESPACE |
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| 24 | |
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