1 // Copyright 2013 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef BASE_STRINGS_STRINGPRINTF_H_ 6 #define BASE_STRINGS_STRINGPRINTF_H_ 7 8 #include <stdarg.h> // va_list 9 10 #include <string> 11 12 #include "base/base_export.h" 13 #include "base/compiler_specific.h" 14 #include "build/build_config.h" 15 16 namespace base { 17 18 // Return a C++ string given printf-like input. 19 BASE_EXPORT std::string StringPrintf(_Printf_format_string_ const char* format, 20 ...) 21 PRINTF_FORMAT(1, 2) WARN_UNUSED_RESULT; 22 #if defined(OS_WIN) 23 BASE_EXPORT std::wstring StringPrintf( 24 _Printf_format_string_ const wchar_t* format, 25 ...) WPRINTF_FORMAT(1, 2) WARN_UNUSED_RESULT; 26 #endif 27 28 // Return a C++ string given vprintf-like input. 29 BASE_EXPORT std::string StringPrintV(const char* format, va_list ap) 30 PRINTF_FORMAT(1, 0) WARN_UNUSED_RESULT; 31 32 // Store result into a supplied string and return it. 33 BASE_EXPORT const std::string& SStringPrintf( 34 std::string* dst, 35 _Printf_format_string_ const char* format, 36 ...) PRINTF_FORMAT(2, 3); 37 #if defined(OS_WIN) 38 BASE_EXPORT const std::wstring& SStringPrintf( 39 std::wstring* dst, 40 _Printf_format_string_ const wchar_t* format, 41 ...) WPRINTF_FORMAT(2, 3); 42 #endif 43 44 // Append result to a supplied string. 45 BASE_EXPORT void StringAppendF(std::string* dst, 46 _Printf_format_string_ const char* format, 47 ...) PRINTF_FORMAT(2, 3); 48 #if defined(OS_WIN) 49 BASE_EXPORT void StringAppendF(std::wstring* dst, 50 _Printf_format_string_ const wchar_t* format, 51 ...) WPRINTF_FORMAT(2, 3); 52 #endif 53 54 // Lower-level routine that takes a va_list and appends to a specified 55 // string. All other routines are just convenience wrappers around it. 56 BASE_EXPORT void StringAppendV(std::string* dst, const char* format, va_list ap) 57 PRINTF_FORMAT(2, 0); 58 #if defined(OS_WIN) 59 BASE_EXPORT void StringAppendV(std::wstring* dst, 60 const wchar_t* format, va_list ap) 61 WPRINTF_FORMAT(2, 0); 62 #endif 63 64 } // namespace base 65 66 #endif // BASE_STRINGS_STRINGPRINTF_H_ 67
