crashpad/util/stdlib/strnlen.cc
Mark Mentovai 20e5aba1af URL cleanups: switch to HTTPS, fix dead ones, use canonical ones
Change-Id: I4b247d7fae1a212350f8ffcf2bf5ba1fa730f5c1
Reviewed-on: https://chromium-review.googlesource.com/780339
Reviewed-by: Scott Graham <scottmg@chromium.org>
Commit-Queue: Mark Mentovai <mark@chromium.org>
2017-11-20 22:23:39 +00:00

48 lines
1.4 KiB
C++

// Copyright 2014 The Crashpad Authors. All rights reserved.
//
// 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
//
// http://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 "util/stdlib/strnlen.h"
#if defined(OS_MACOSX) && MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_7
#if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_7
// Redeclare a method only available on Mac OS X 10.7 and later to suppress a
// -Wpartial-availability warning.
extern "C" {
size_t strnlen(const char* string, size_t max_length);
} // extern "C"
#endif
namespace crashpad {
size_t strnlen(const char* string, size_t max_length) {
#if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_7
if (::strnlen) {
return ::strnlen(string, max_length);
}
#endif
for (size_t index = 0; index < max_length; ++index) {
if (string[index] == '\0') {
return index;
}
}
return max_length;
}
} // namespace crashpad
#endif