d87eea35fa
This is the first step in preparation for: https://discourse.llvm.org/t/rfc-make-clang-builtin-math-functions-constexpr-with-llvm-libc-to-support-c-23-constexpr-math-functions/86450
27 lines
824 B
C++
27 lines
824 B
C++
//===-- Implementation of ftello ------------------------------------------===//
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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/stdio/ftello.h"
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#include "src/__support/File/file.h"
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#include "src/__support/libc_errno.h"
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#include "src/__support/macros/config.h"
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namespace LIBC_NAMESPACE_DECL {
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LLVM_LIBC_FUNCTION(off_t, ftello, (::FILE * stream)) {
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auto result = reinterpret_cast<LIBC_NAMESPACE::File *>(stream)->tell();
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if (!result.has_value()) {
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libc_errno = result.error();
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return -1;
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}
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return result.value();
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}
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} // namespace LIBC_NAMESPACE_DECL
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