// Copyright (c) 2011 Baidu, Inc. // Date: Mon. Nov 7 14:47:36 CST 2011 #ifndef BUTIL_STRING_PRINTF_H #define BUTIL_STRING_PRINTF_H #include <string> // std::string #include <stdarg.h> // va_list namespace butil { // Convert |format| and associated arguments to std::string std::string string_printf(const char* format, ...) __attribute__ ((format (printf, 1, 2))); // Write |format| and associated arguments into |output| // Returns 0 on success, -1 otherwise. int string_printf(std::string* output, const char* fmt, ...) __attribute__ ((format (printf, 2, 3))); // Write |format| and associated arguments in form of va_list into |output|. // Returns 0 on success, -1 otherwise. int string_vprintf(std::string* output, const char* format, va_list args); // Append |format| and associated arguments to |output| // Returns 0 on success, -1 otherwise. int string_appendf(std::string* output, const char* format, ...) __attribute__ ((format (printf, 2, 3))); // Append |format| and associated arguments in form of va_list to |output|. // Returns 0 on success, -1 otherwise. int string_vappendf(std::string* output, const char* format, va_list args); } // namespace butil #endif // BUTIL_STRING_PRINTF_H