blob: 791f60e3e4c60e3681b785a8745618b0d0d64342 [file] [log] [blame]
// 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_