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/compiler_specific.h" 13 #include "util/build_config.h" 14 15 namespace base { 16 17 // Return a C++ string given printf-like input. 18 std::string StringPrintf(_Printf_format_string_ const char* format, ...) 19 PRINTF_FORMAT(1, 2) WARN_UNUSED_RESULT; 20 21 // Return a C++ string given vprintf-like input. 22 std::string StringPrintV(const char* format, va_list ap) 23 PRINTF_FORMAT(1, 0) WARN_UNUSED_RESULT; 24 25 // Store result into a supplied string and return it. 26 const std::string& SStringPrintf(std::string* dst, 27 _Printf_format_string_ const char* format, 28 ...) PRINTF_FORMAT(2, 3); 29 30 // Append result to a supplied string. 31 void StringAppendF(std::string* dst, 32 _Printf_format_string_ const char* format, 33 ...) PRINTF_FORMAT(2, 3); 34 35 // Lower-level routine that takes a va_list and appends to a specified 36 // string. All other routines are just convenience wrappers around it. 37 void StringAppendV(std::string* dst, const char* format, va_list ap) 38 PRINTF_FORMAT(2, 0); 39 40 } // namespace base 41 42 #endif // BASE_STRINGS_STRINGPRINTF_H_ 43