[flang] Use object before converts in fir.dispatch (#68589)
[llvm-project.git] / libc / src / unistd / linux / dup.cpp
bloba2e7d3fdec4295b1e4461fbb1a2b52ee6fcba9f6
1 //===-- Linux implementation of dup ---------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
9 #include "src/unistd/dup.h"
11 #include "src/__support/OSUtil/syscall.h" // For internal syscall function.
12 #include "src/__support/common.h"
14 #include "src/errno/libc_errno.h"
15 #include <sys/syscall.h> // For syscall numbers.
17 namespace LIBC_NAMESPACE {
19 LLVM_LIBC_FUNCTION(int, dup, (int fd)) {
20 int ret = LIBC_NAMESPACE::syscall_impl<int>(SYS_dup, fd);
21 if (ret < 0) {
22 libc_errno = -ret;
23 return -1;
25 return ret;
28 } // namespace LIBC_NAMESPACE