naiveproxy/tools/gn/base/strings/stringprintf.h
2018-08-14 22:19:20 +00:00

61 lines
2.0 KiB
C++

// 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_STRINGPRINTF_H_
#define BASE_STRINGS_STRINGPRINTF_H_
#include <stdarg.h> // va_list
#include <string>
#include "base/compiler_specific.h"
#include "util/build_config.h"
namespace base {
// Return a C++ string given printf-like input.
std::string StringPrintf(_Printf_format_string_ const char* format, ...)
PRINTF_FORMAT(1, 2) WARN_UNUSED_RESULT;
#if defined(OS_WIN)
std::wstring StringPrintf(_Printf_format_string_ const wchar_t* format, ...)
WPRINTF_FORMAT(1, 2) WARN_UNUSED_RESULT;
#endif
// Return a C++ string given vprintf-like input.
std::string StringPrintV(const char* format, va_list ap)
PRINTF_FORMAT(1, 0) WARN_UNUSED_RESULT;
// Store result into a supplied string and return it.
const std::string& SStringPrintf(std::string* dst,
_Printf_format_string_ const char* format,
...) PRINTF_FORMAT(2, 3);
#if defined(OS_WIN)
const std::wstring& SStringPrintf(std::wstring* dst,
_Printf_format_string_ const wchar_t* format,
...) WPRINTF_FORMAT(2, 3);
#endif
// Append result to a supplied string.
void StringAppendF(std::string* dst,
_Printf_format_string_ const char* format,
...) PRINTF_FORMAT(2, 3);
#if defined(OS_WIN)
void StringAppendF(std::wstring* dst,
_Printf_format_string_ const wchar_t* format,
...) WPRINTF_FORMAT(2, 3);
#endif
// Lower-level routine that takes a va_list and appends to a specified
// string. All other routines are just convenience wrappers around it.
void StringAppendV(std::string* dst, const char* format, va_list ap)
PRINTF_FORMAT(2, 0);
#if defined(OS_WIN)
void StringAppendV(std::wstring* dst, const wchar_t* format, va_list ap)
WPRINTF_FORMAT(2, 0);
#endif
} // namespace base
#endif // BASE_STRINGS_STRINGPRINTF_H_