| // Copyright 2013 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef BASE_STRINGS_STRING_UTIL_WIN_H_ |
| #define BASE_STRINGS_STRING_UTIL_WIN_H_ |
| |
| #include <stdarg.h> |
| #include <stddef.h> |
| #include <stdio.h> |
| #include <string.h> |
| #include <wchar.h> |
| |
| #include "base/logging.h" |
| |
| namespace base { |
| |
| // Chromium code style is to not use malloc'd strings; this is only for use |
| // for interaction with APIs that require it. |
| inline char* strdup(const char* str) { |
| return _strdup(str); |
| } |
| |
| inline int vsnprintf(char* buffer, size_t size, |
| const char* format, va_list arguments) { |
| int length = vsnprintf_s(buffer, size, size - 1, format, arguments); |
| if (length < 0) |
| return _vscprintf(format, arguments); |
| return length; |
| } |
| |
| inline int vswprintf(wchar_t* buffer, size_t size, |
| const wchar_t* format, va_list arguments) { |
| DCHECK(IsWprintfFormatPortable(format)); |
| |
| int length = _vsnwprintf_s(buffer, size, size - 1, format, arguments); |
| if (length < 0) |
| return _vscwprintf(format, arguments); |
| return length; |
| } |
| |
| // Windows only overload of base::WriteInto for std::wstring. See the comment |
| // above the cross-platform version in //base/strings/string_util.h for details. |
| // TODO(crbug.com/911896): Rename this to WriteInto once base::string16 is |
| // std::u16string on all platforms and using the name WriteInto here no longer |
| // causes redefinition errors. |
| inline wchar_t* WriteIntoW(std::wstring* str, size_t length_with_null) { |
| // Note: As of C++11 std::strings are guaranteed to be 0-terminated. Thus it |
| // is enough to reserve space for one char less. |
| DCHECK_GE(length_with_null, 1u); |
| str->resize(length_with_null - 1); |
| return &((*str)[0]); |
| } |
| |
| } // namespace base |
| |
| #endif // BASE_STRINGS_STRING_UTIL_WIN_H_ |