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 15 namespace base { 16 17 // Return a C++ string given printf-like input. 18 BASE_EXPORT std::string StringPrintf(const char* format, ...) 19 PRINTF_FORMAT(1, 2); 20 // OS_ANDROID's libc does not support wchar_t, so several overloads are omitted. 21 #if !defined(OS_ANDROID) 22 BASE_EXPORT std::wstring StringPrintf(const wchar_t* format, ...) 23 WPRINTF_FORMAT(1, 2); 24 #endif 25 26 // Return a C++ string given vprintf-like input. 27 BASE_EXPORT std::string StringPrintV(const char* format, va_list ap) 28 PRINTF_FORMAT(1, 0); 29 30 // Store result into a supplied string and return it. 31 BASE_EXPORT const std::string& SStringPrintf(std::string* dst, 32 const char* format, ...) 33 PRINTF_FORMAT(2, 3); 34 #if !defined(OS_ANDROID) 35 BASE_EXPORT const std::wstring& SStringPrintf(std::wstring* dst, 36 const wchar_t* format, ...) 37 WPRINTF_FORMAT(2, 3); 38 #endif 39 40 // Append result to a supplied string. 41 BASE_EXPORT void StringAppendF(std::string* dst, const char* format, ...) 42 PRINTF_FORMAT(2, 3); 43 #if !defined(OS_ANDROID) 44 // TODO(evanm): this is only used in a few places in the code; 45 // replace with string16 version. 46 BASE_EXPORT void StringAppendF(std::wstring* dst, const wchar_t* format, ...) 47 WPRINTF_FORMAT(2, 3); 48 #endif 49 50 // Lower-level routine that takes a va_list and appends to a specified 51 // string. All other routines are just convenience wrappers around it. 52 BASE_EXPORT void StringAppendV(std::string* dst, const char* format, va_list ap) 53 PRINTF_FORMAT(2, 0); 54 #if !defined(OS_ANDROID) 55 BASE_EXPORT void StringAppendV(std::wstring* dst, 56 const wchar_t* format, va_list ap) 57 WPRINTF_FORMAT(2, 0); 58 #endif 59 60 } // namespace base 61 62 #endif // BASE_STRINGS_STRINGPRINTF_H_ 63
