llvm/libc/src/signal/linux/sigaddset.cpp

//===-- Linux 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/macros/config.h"
#include "src/errno/libc_errno.h"
#include "src/signal/linux/signal_utils.h"

namespace LIBC_NAMESPACE_DECL {

LLVM_LIBC_FUNCTION(int, sigaddset, (sigset_t * set, int signum)) {
  if (set != nullptr && add_signal(*set, signum))
    return 0;
  libc_errno = EINVAL;
  return -1;
}

} // namespace LIBC_NAMESPACE_DECL