| //===-- Darwin implementation of sigaddset --------------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "src/signal/sigaddset.h" |
| #include "hdr/types/sigset_t.h" |
| #include "src/__support/common.h" |
| #include "src/__support/libc_errno.h" |
| #include "src/__support/macros/config.h" |
| |
| namespace LIBC_NAMESPACE_DECL { |
| |
| LLVM_LIBC_FUNCTION(int, sigaddset, (sigset_t * set, int signum)) { |
| if (!set || signum <= 0 || signum >= NSIG) { |
| libc_errno = EINVAL; |
| return -1; |
| } |
| set->__signals[0] |= (1U << (signum - 1)); |
| return 0; |
| } |
| |
| } // namespace LIBC_NAMESPACE_DECL |
