diff options
Diffstat (limited to 'third_party/abseil_cpp/absl/base/internal/strerror.cc')
-rw-r--r-- | third_party/abseil_cpp/absl/base/internal/strerror.cc | 75 |
1 files changed, 0 insertions, 75 deletions
diff --git a/third_party/abseil_cpp/absl/base/internal/strerror.cc b/third_party/abseil_cpp/absl/base/internal/strerror.cc deleted file mode 100644 index af181513cd..0000000000 --- a/third_party/abseil_cpp/absl/base/internal/strerror.cc +++ /dev/null @@ -1,75 +0,0 @@ -// Copyright 2020 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include "absl/base/internal/strerror.h" - -#include <cerrno> -#include <cstddef> -#include <cstdio> -#include <cstring> -#include <string> -#include <type_traits> - -#include "absl/base/attributes.h" -#include "absl/base/internal/errno_saver.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace base_internal { -namespace { -const char* StrErrorAdaptor(int errnum, char* buf, size_t buflen) { -#if defined(_WIN32) - int rc = strerror_s(buf, buflen, errnum); - buf[buflen - 1] = '\0'; // guarantee NUL termination - if (rc == 0 && strncmp(buf, "Unknown error", buflen) == 0) *buf = '\0'; - return buf; -#else -#if defined(__GLIBC__) || defined(__APPLE__) - // Use the BSD sys_errlist API provided by GNU glibc and others to - // avoid any need to copy the message into the local buffer first. - if (0 <= errnum && errnum < sys_nerr) { - if (const char* p = sys_errlist[errnum]) { - return p; - } - } -#endif - // The type of `ret` is platform-specific; both of these branches must compile - // either way but only one will execute on any given platform: - auto ret = strerror_r(errnum, buf, buflen); - if (std::is_same<decltype(ret), int>::value) { - // XSI `strerror_r`; `ret` is `int`: - if (ret) *buf = '\0'; - return buf; - } else { - // GNU `strerror_r`; `ret` is `char *`: - return reinterpret_cast<const char*>(ret); - } -#endif -} -} // namespace - -std::string StrError(int errnum) { - absl::base_internal::ErrnoSaver errno_saver; - char buf[100]; - const char* str = StrErrorAdaptor(errnum, buf, sizeof buf); - if (*str == '\0') { - snprintf(buf, sizeof buf, "Unknown error %d", errnum); - str = buf; - } - return str; -} - -} // namespace base_internal -ABSL_NAMESPACE_END -} // namespace absl |